CN216277907U - Tunnel dry-jet support feeding conveying equipment - Google Patents

Abstract

The utility model discloses a feeding and conveying device for a dry-jet support of a tunnel, and belongs to the technical field of concrete jet-support construction. The utility model provides a tunnel dry-jet support feed conveying equipment, includes the main frame, the upside of main frame is provided with transport mechanism, the front end of main frame is provided with the striker plate, the rear end of main frame is provided with the regulation support frame, the height-adjustable of regulation support frame. The utility model has the advantages of high efficiency, stable operation, reduced cost, accelerated construction efficiency, improved construction quality and protection of the health of operators.

Description

Tunnel dry-jet support feeding conveying equipment

Technical Field

The utility model relates to the technical field of concrete spraying and protecting construction, in particular to a feeding and conveying device for a dry-spraying support of a tunnel.

Background

In the domestic middle and small hydraulic engineering at present, the excavation construction of the designed small-section tunnel is gradually increased; among them, water diversion irrigation projects are the majority. The tunnel engineering has the characteristics of small section, long distance, low mechanization degree and the like. In the construction process, advanced support, excavation, anchor rods, net hanging, concrete spraying and the like are required. The supporting construction after the excavation construction is finished is a key process for ensuring the stability of the cavern and the safety of subsequent construction. During construction, in order to accelerate progress and reduce construction cost in the process, a dry spraying method is adopted for concrete spraying construction.

The dry spraying method is that the mixture of sand, stone, cement, additive, etc. is sieved by wind pressure and then fed to the sprayed surface via sprayer, wind pipe and nozzle to complete the concrete spraying construction of tunnel. After being mixed by a mixer, the mixture is transported to the vicinity of an injection machine; the feeding process is completed by manually adopting shovels for feeding one by one, and the feeding process is completed by an injection machine, so that the feeding device has a plurality of defects.

1) In the feeding process, 3-4 persons are required to operate, and a large amount of labor is consumed.

2) A plurality of persons feed simultaneously, and the feeding requirement of the injection machine is met through the feeding speed and the feeding amount of the persons, so that the construction continuity and the construction quality of the injected concrete are ensured; however, in the actual process, due to artificial reasons, the speed and the amount of manual feeding cannot be controlled, so that the feeding of the feeding port of the injection machine is not uniform, the feeding time is long, the feeding time is short, and the conditions that the equipment idles or the feeding is too much and the feeding port is blocked frequently occur, so that the working procedure time is long.

3) A feeding constructor is near the injection machine, the mixture is in a dry powder state in the feeding process, and after entering the injection machine, a large amount of dust is generated through blowing of wind pressure; although constructors wear the dust mask, the dust mask is in a dust environment for a long time, and the body health of the constructors is still affected to a certain degree.

Therefore, the manual feeding method of the dry-spraying concrete influences the construction continuity of the spraying concrete and indirectly influences the quality of the spraying concrete; a large amount of dust in the process also causes certain damage to the physical and psychological health of feeding personnel.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tunnel dry-jet support feeding and conveying device which replaces manual work to carry out efficient and stable operation; the problems that in the prior art, the labor intensity of concrete spraying construction is high, the health of operators is affected, and the construction quality is not easy to control are solved.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a tunnel dry-jet support feed conveying equipment, includes the main frame, the upside of main frame is provided with transport mechanism, the front end of main frame is provided with the striker plate, the rear end of main frame is provided with the regulation support frame, the height-adjustable of regulation support frame.

In some embodiments, the upper side of the main frame is provided with an anti-deviation wheel;

the two anti-deviation wheels are symmetrically arranged into a group and are respectively positioned on two sides of the conveying mechanism, and the clamping distance of the opposite inner sides of the two anti-deviation wheels can be adjusted.

In some embodiments, the upper side of the main frame is provided with a slide rail, and the deviation-proof wheel is slidably mounted in the slide rail;

the anti-deviation wheel consists of a sliding plate and a vertical rotating wheel;

the slide board is inserted in the slide rail, and the vertical rotating wheel is arranged on the upper side surface of the slide board.

In some embodiments, a transmission auxiliary rotating shaft is arranged on the upper side of the main frame, and the transmission auxiliary rotating shaft is connected with the main frame in a sliding manner;

the transmission auxiliary rotating shaft is composed of two symmetrical parts, and the opposite inner sides of the two parts are connected through an adjustable screw rod.

In some embodiments, the adjustable lead screw is comprised of a first threaded rod and a first internally threaded barrel;

the opposite inner sides of the two parts of the transmission auxiliary rotating shaft are respectively provided with one first threaded rod, and the first internal thread cylinder is connected with the two first threaded rods at the two ends.

In some embodiments, the conveying mechanism is composed of a driving wheel, a driven wheel, a conveying belt and a motor;

the driving wheel is arranged at a position close to the front end of the main frame, the driven wheel is arranged at a position close to the rear end of the main frame, and the conveyor belt is sleeved on the outer surfaces of the driving wheel and the driven wheel;

the motor is in transmission connection with the driving wheel.

In some embodiments, the motor is disposed above the main frame through a bracket holder.

In some embodiments, the inner side surface of the striker plate is provided with a rubber plate.

In some embodiments, the adjustment support frame is comprised of a second internally threaded barrel and a second threaded rod;

the second internal thread barrel is arranged on two sides of the main frame, and the second threaded rod is in threaded connection with the second internal thread barrel.

In some embodiments, the underside of the main frame is provided with road wheels.

Compared with the prior art, the utility model provides a feeding and conveying device for dry-jet support of a tunnel, which has the following beneficial effects:

1. the utility model replaces manual work to carry out efficient and stable operation, reduces cost, accelerates construction efficiency, improves construction quality and protects the health of operators.

2. According to the utility model, the material baffle is arranged, so that materials are saved, and the injury to operators is avoided; an adjusting support frame is arranged to adapt to a construction site and ensure the conveying effect; the anti-deviation wheel can be adjusted to match the actual running state; the auxiliary transmission rotating shaft can be freely installed, detached and adjusted, is simple, convenient and efficient, and is more convenient for fitting working conditions; can be reused, and the application range is enlarged.

The utility model replaces manual work to carry out efficient and stable operation, reduces cost, accelerates construction efficiency, improves construction quality and protects health of operators; the material baffle is arranged, so that materials are saved, and the injury to operators is avoided; an adjusting support frame is arranged to adapt to a construction site and ensure the conveying effect; the anti-deviation wheel can be adjusted to match the actual running state; the auxiliary transmission rotating shaft can be freely installed, detached and adjusted, is simple, convenient and efficient, and is more convenient for fitting working conditions; can be reused, and the application range is enlarged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure with the conveyor belt removed;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is an enlarged view of the structure at B in FIG. 2;

FIG. 5 is a schematic structural view of an anti-deviation wheel;

FIG. 6 is an enlarged view of the structure at C in FIG. 2;

FIG. 7 is a schematic structural diagram of an adjustable lead screw;

fig. 8 is a schematic view of the usage state of the present invention.

In the figure: 1. a main frame; 2. a transport mechanism; 201. a driving wheel; 202. a driven wheel; 203. a conveyor belt; 204. a motor; 3. a striker plate; 4. adjusting the support frame; 401. a second internally threaded barrel; 402. a second threaded rod; 5. an anti-deviation wheel; 501. a slide plate; 502. a vertical rotating wheel; 6. a slide rail; 7. a transmission auxiliary rotating shaft; 8. an adjustable lead screw; 801. a first threaded rod; 802. a first internally threaded barrel; 9. a support base; 10. a rubber plate; 11. and (5) traveling wheels.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-8, the tunnel dry-jet support feeding and conveying equipment comprises a main frame 1, wherein two long sides of the main frame 1 adopt channel steel, and the opening of the channel steel faces outwards; angle steel is arranged on the inner side of the main frame 1 for connection, and connecting steel bars are arranged for reinforcement; the upper side of the main frame 1 is provided with a conveying mechanism 2, and the conveying mechanism 2 conveys materials from the rear side to the front side.

The transmission mechanism 2 is composed of a driving wheel 201, a driven wheel 202, a transmission belt 203 and a motor 204.

Specifically, the driving wheel 201 is arranged at a position close to the front end of the main frame 1, the driven wheel 202 is arranged at a position close to the rear end of the main frame 1, and the conveyor belt 203 is sleeved on the outer surfaces of the driving wheel 201 and the driven wheel 202; the motor 204 is in transmission connection with the driving wheel 201.

Further, the motor 204 is disposed above the main frame 1 through the stand base 9.

The lower part of the bracket seat 9 is connected with the upper side surface of the main frame 1, and the top part is provided with a motor 204; a middle reserved space for the conveyor belt 203 to pass through; the height of the support base 9 is controlled so as not to affect the material transport.

The front end of the main frame 1 is provided with a striker plate 3.

Specifically, the striker plate 3 extends upwards; the width of the two sides is not less than the left width and the right width of the main frame 1, and the width can properly exceed the main frame 1 so as to better ensure the blocking effect on materials; the top end of the striker plate 3 inclines towards the rear part of the main frame 1, namely the top part inclines towards the inner side; therefore, when the material strikes the striker plate 3, the striker plate cannot bounce upwards, and the material falls downwards, so that the blocking effect is further ensured.

Further, the inner side surface of the striker plate 3 is provided with a rubber plate 10.

By additionally arranging the rubber plate 10, materials do not collide with the material baffle plate 3, and noise is reduced; meanwhile, the loss of the striker plate 3 is reduced.

The rubber plate 10 needs to be replaced in time when excessive wear occurs during use.

The rear end of the main frame 1 is provided with an adjusting support frame 4; the adjusting support frame 4 adjusts and lifts the height of the rear end of the main frame 1.

Specifically, the adjusting support frames 4 are arranged on the left and right sides of the main frame 1 near the rear position, preferably without affecting the conveying mechanism 2; the height of the support frame 4 can be adjusted; the height of the supporting frame 4 is adjusted through adjustment, the height of the tail end of the equipment is changed, and therefore the integral inclination angle of the equipment is adjusted, the construction site is adapted, and the conveying effect is guaranteed.

In some embodiments, the adjustment support 4 is comprised of a second internally threaded barrel 401 and a second threaded rod 402.

Specifically, the second internal thread cylinders 401 are disposed on both sides of the main frame 1, and are axially and vertically downward, and the second threaded rods 402 are threadedly coupled to the second internal thread cylinders 401.

The support adjustment of the equipment is realized by adjusting the downward extension length of the second threaded rod 402; both sides can be independently adjusted, reply uneven operating mode environment in ground.

In some embodiments, the upper side of the main frame 1 is provided with an anti-yaw wheel 5.

Wherein, the anti-deviation wheels 5 are respectively arranged in a group at least at the front end and the rear end of the main frame 1; so as to limit the conveying device in operation and avoid the deviation of the conveying belt 203; the additional arrangement can be made at the middle position according to the total length of the equipment.

The top end of the deviation preventing wheel 5 is higher than the conveying belt 203; preferably, the height is higher by 2-5 cm; the limiting effect cannot be guaranteed due to over-low.

The two anti-deviation wheels 5 are symmetrically arranged into a group and are respectively positioned at two sides of the conveyor belt 203; the clamping distance of the two anti-deviation wheels 5 relative to the inner sides can be adjusted; thus, the actual operating state is better matched.

Further, in some embodiments, the main frame 1 is provided with a slide rail 6 on the upper side, and the anti-deviation wheel 5 is slidably mounted in the slide rail 6.

Specifically, the anti-deviation wheel 5 consists of a sliding plate 501 and a vertical rotating wheel 502; the sliding plate 501 is a flat plate, the top of the sliding rail 6 is open, and the path direction is vertical to the inner side of the main frame 1; the sliding plate 501 is inserted in the sliding rail 6, and the vertical rotating wheel 502 is arranged on the upper side surface of the sliding plate 501.

The distance between the anti-deviation wheel 5 and the conveyor belt 203 is adjusted by sliding the sliding plate 501; the two anti-deviation wheels 5 on the two sides are independently adjusted; after the position is determined, the position of the sliding plate 501 is locked; bolts can penetrate through the top of the slide rail 6 to contact the upper surface of the slide plate 501; by screwing in the bolt, position definition is performed.

In some embodiments, the upper side of the main frame 1 is provided with a transmission auxiliary rotating shaft 7.

Wherein, the transmission auxiliary rotating shafts 7 are provided with a plurality of; according to the load capacity and the transmission length of the conveyed materials, the installation quantity is set in a matching manner; the transmission auxiliary rotating shafts 7 are installed in an appropriate number to prevent the conveyor belt 203 from dropping when the shotcrete is conveyed and to increase the transmission auxiliary force of the conveyor belt 203.

Specifically, the transmission auxiliary rotating shaft 7 is composed of two symmetrical parts, and each part is provided with a rotating shaft and a bracket seat; the rotating shaft is horizontally arranged, and the outer surface of the rotating shaft is in contact with the conveyor belt 203 to provide supporting force; the rotating shaft is installed through the bracket base.

Furthermore, the transmission auxiliary rotating shaft 7 is connected with the main frame 1 in a sliding mode, and the opposite inner sides of the two parts of the transmission auxiliary rotating shaft 7 are connected through an adjustable screw rod 8.

Specifically, one end of the outer side of the transmission auxiliary rotating shaft 7 is of a U-shaped structure; the opening of the U-shaped structure faces the inner side and is hung on the outer side of the main frame 1, so that the U-shaped structure can slide along the edge of the main frame 1; the two parts at the two sides are connected through an adjustable screw rod 8 after corresponding to proper positions; the adjustable lead screw 8 tensions the two parts inwards, so that their position is fixed and no longer movable.

The transmission auxiliary rotating shaft 7 is arranged in a sliding way, is connected with the adjustable screw rod 8, is locked, can be freely installed and disassembled, and can be adjusted at any time; the method is simple, convenient and efficient, and is more convenient for fitting the working condition; and, can be used to the main frame 1 of different width, multiplexing expands its application scope.

Further, in some embodiments, adjustable lead screw 8 is comprised of a first threaded rod 801 and a first internally threaded barrel 802.

Specifically, two opposite inner sides of the transmission auxiliary rotating shaft 7 are respectively provided with a first threaded rod 801, and a first internal thread cylinder 802 is connected with two first threaded rods 801 at two ends; thereby locking and fixing the same.

In some embodiments, the underside of the main frame 1 is provided with road wheels 11.

Preferably, the walking wheels 11 adopt single-row double wheels of a trolley; so that the equipment is light and convenient, can move quickly, and can adjust the position at any time according to the field condition; the working and the parking can be dragged only by manpower, and the construction operation of other procedures is not influenced after the parking along the ground and the side.

The construction of the project of the small wave bottom south bank irrigation area built by the eleventh project administration of Chinese water conservancy and hydropower, which is 6-mark, is located in Mengjin urban town, Chaoyang town and village-delivering town of Luoyang, and the construction contents are channels of one, two and three main canals and buildings. Wherein, the constructed tunnels are all soil tunnels; the tunnel adopts a horseshoe shape, the designed longitudinal slopes are all 1:2000, the tunnel lining thickness is all 30 cm, and C30 reinforced concrete is adopted. The total length of the diversion tunnel excavation is 2277.7 meters, all the tunnels are constructed by anchor-shotcrete support, and the total shotcrete length is 2351 cubic. The tunnel has the characteristics of small section, long distance, low mechanization degree and the like, belongs to the key and difficult points of the section, and is also a key line of the section, and the through of the tunnel excavated by the tunnel is the key for ensuring whether the project can be delivered and performed according to the schedule.

According to a general method, the injection construction of manual feeding is adopted, and the method comprises the following steps:

adopting manual feeding, wherein the excavation footage per cycle is 4-5 meters, and the concrete spraying time per cycle is about 5-5.5 hours; the total length of the tunnel is 2277.7 m, and the total accumulated time of concrete spraying procedures is about: 2277.7/4.5.5/24 ≈ 116 days, with an expenditure of manpower of about: 2277.7/4.5 × 4 × 5.5/8 ≈ 1392 weekdays.

In order to accelerate the construction progress and ensure that the tunnel excavation construction is completed according to the planned construction period in due date, the project changes the concrete feeding mode of the tunnel excavation support by combining the actual situation of the site according to the construction characteristics, and the dry-jet support feeding and conveying equipment is manufactured according to the tunnel dry-jet support feeding and conveying equipment.

The main frame 1 of the equipment is formed by welding 10# channel steel and 40 x 4 angle steel, the middle of the main frame is connected and reinforced through phi 20 steel bars, the total length of the equipment is 4.3 meters, and the width of the equipment is 0.75 meter. The height and the length of the main frame 1 are determined according to the site construction condition, so that the optimal gradient of concrete spraying and loading in the hole and the optimal height of the discharging distance from the material port of the spraying machine are met when the working state is ensured, and the main frame is convenient to park when not in use and does not influence other process construction.

The main frame 1 and the walking wheel 11 bearing are welded and connected in an inverted triangle shape by adopting 5# channel steel; the walking wheels 11 adopt hand-push wheels and single-row double wheels, and the diameter of each wheel is 0.64 meter.

The transmission band is 0.49 m in width and 2 cm in thickness.

The upper part of the main frame 1 is provided with an anti-deviation wheel 5 and a transmission auxiliary rotating shaft 7.

The anti-deviation wheels 5 are respectively arranged at the front end 0.65 meter position and the tail end 0.4 meter position of the main frame 1; the mounting height is 0.21 m, the diameter of the rotating wheel is 5 cm, and the rotating wheel is about 2 cm higher than the belt, so that the conveying belt is prevented from deviating in the rotating process.

The auxiliary rotating shafts 7 are driven and arranged in a group at intervals of 0.6 m; its diameter is 7 cm; so as to prevent the belt from dropping when the anchor material is conveyed and increase the transmission auxiliary force of the belt; the conveying speed of the belt is controlled to be 0.7 m/s, and the requirement of on-site feeding can be met.

The upper part of the main frame 1 is provided with a conveying mechanism 2; wherein, the motor 204 adopts a 3KW asynchronous motor and is arranged on a bracket seat 9 at the front end of the equipment; the bracket base 9 is 0.335 m wide, 0.35 m high and 0.75 m long and is welded with the main frame 1; the motor 204 and the bracket base 9 are connected by bolts.

The front end of the main frame 1 is provided with a material baffle plate 3, a framework of the material baffle plate 3 adopts 40-4 angle iron, a 2 cm rubber plate is embedded, the height is 0.3 m, and the conveyed spray anchor material is prevented from accurately falling into an injection machine port.

The front end of the main frame 1 is provided with an adjusting support frame 4, and the height of the adjusting support frame is adjusted when the adjusting support frame is used.

The device is formed by processing and assembling according to the construction characteristics of small section and long distance of the tunnel; when the equipment works and stops, the equipment is tightly followed with the excavation tunnel face so as to not influence the principle that the slag discharged from the tunnel and other mechanical equipment pass through.

When the equipment is used for construction, the motor 204 drives the conveyor belt 203 to continuously rotate, and the anchor spraying mixture is quantitatively and continuously conveyed to the injection machine; the conveying mechanism 2 is controlled by an electric switch, and the conveying time, position and angle are adjusted in real time according to the field injection condition, so that the injection feeding is carried out quantitatively and continuously; the problems of excessive feeding and blockage of the jetting machine caused by artificial reasons and discontinuous construction caused by material shortage and idle running of the jetting machine are effectively solved; therefore, the construction time of the shotcrete supporting process is shortened; adjusting the conveying equipment to form a slope, wherein the end head effectively permeates into the material pile, and the mixture permeating into the end head is sufficient only by manual work; the personnel allocation of the concrete spraying construction process is greatly reduced, so that the problem of high labor cost is solved; the conveyer belt length is about 4.3 meters, can fully make operating personnel keep away from the injection machine feed inlet, avoids spouting the operation in-process futilely, and the dust is too big to cause the injury to construction operation personnel's healthy.

The equipment is utilized in engineering, the construction time of a shotcrete supporting process is effectively shortened, the problem of high labor cost is solved, the health injury to personnel in the operation process is avoided, continuous and safe construction of the shotcrete supporting is efficiently guaranteed, and the construction quality is improved.

Through calculation: after the equipment is used, each cycle is shortened from original 5.5 hours to 3.5 hours, and the construction period is saved by about: 2277.7/4.5 × 2/24 ≈ 42 days; personnel configuration is reduced to 2 by 4 original people, and the cost of saving the manual work is about: 2277.7/4.5 × 2 × 2/8 ≈ 253 work day; the construction efficiency of the spray anchor support is greatly improved, the operation time of the anchor spray support work is shortened, the circular footage of the hole excavation is added, the concrete spraying continuous operation is realized, the construction quality of the concrete spraying is ensured, meanwhile, the configuration of site construction operators is reduced, and the construction cost investment is saved.

The utility model replaces manual work to carry out efficient and stable operation, reduces cost, accelerates construction efficiency, improves construction quality and protects the health of operators.

In the utility model, the material baffle 3 is arranged to prevent the materials from scattering outwards, so that the materials are saved, and the striking injury to operators is avoided; the rubber plate 10 is arranged, so that noise is reduced, and loss is reduced; the adjusting support frame 4 is arranged to adjust the height of the rear end of the main frame 1 and lift the rear end of the main frame to adapt to a construction site and ensure the conveying effect; the two sides can be independently adjusted to deal with the working condition environment with uneven bottom surface; the clamping distance of the anti-deviation wheel 5 can be adjusted to match the actual running state; the transmission auxiliary rotating shaft 7 is installed in a sliding mode, is connected with the adjustable screw rod 8 in a matched mode, is locked, can be freely installed and disassembled, and can be adjusted at any time; the method is simple, convenient and efficient, and is more convenient for fitting the working condition; and, can be used to the main frame 1 of different width, multiplexing expands its application scope.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (10)

1. The utility model provides a tunnel dry-jet support feed conveying equipment, its characterized in that, includes main frame (1), the upside of main frame (1) is provided with transport mechanism (2), the front end of main frame (1) is provided with striker plate (3), the rear end of main frame (1) is provided with adjusts support frame (4), the height-adjustable of adjusting support frame (4).

2. The tunnel dry-jet support feeding and conveying equipment as claimed in claim 1, characterized in that the upper side of the main frame (1) is provided with an anti-deviation wheel (5);

the two deviation prevention wheels (5) are symmetrically arranged into a group and are respectively positioned on two sides of the conveying mechanism (2), and the clamping distance of the opposite inner sides of the two deviation prevention wheels (5) is adjustable.

3. The tunnel dry-jet support feeding conveying equipment as claimed in claim 2, characterized in that the upper side of the main frame (1) is provided with a slide rail (6), and the anti-deviation wheel (5) is slidably mounted in the slide rail (6);

the anti-deviation wheel (5) consists of a sliding plate (501) and a vertical rotating wheel (502);

the sliding plate (501) is inserted into the sliding rail (6), and the vertical rotating wheel (502) is arranged on the upper side face of the sliding plate (501).

4. The tunnel dry-jet support feeding conveying equipment as claimed in claim 1, characterized in that the upper side of the main frame (1) is provided with a transmission auxiliary rotating shaft (7), and the transmission auxiliary rotating shaft (7) is connected with the main frame (1) in a sliding manner;

the transmission auxiliary rotating shaft (7) is composed of two symmetrical parts, and the opposite inner sides of the two parts are connected through an adjustable screw rod (8).

5. The tunnel dry-jet support feeding conveying equipment as claimed in claim 4, characterized in that the adjustable screw rod (8) is composed of a first threaded rod (801) and a first internal threaded barrel (802);

the opposite inner sides of the two parts of the transmission auxiliary rotating shaft (7) are respectively provided with one first threaded rod (801), and the first internal thread cylinder (802) is connected with the two first threaded rods (801) at the two ends.

6. The tunnel dry-jet support feeding conveying device as claimed in claim 1, wherein the conveying mechanism (2) is composed of a driving wheel (201), a driven wheel (202), a conveying belt (203) and a motor (204);

the driving wheel (201) is arranged at a position, close to the front end, of the main frame (1), the driven wheel (202) is arranged at a position, close to the rear end, of the main frame (1), and the conveyor belt (203) is sleeved on the outer surfaces of the driving wheel (201) and the driven wheel (202);

the motor (204) is in transmission connection with the driving wheel (201).

7. The tunnel dry-jet support feeding conveying equipment as claimed in claim 6, characterized in that the motor (204) is arranged above the main frame (1) through a bracket seat (9).

8. The tunnel dry-jet support feeding conveying equipment as claimed in claim 1, wherein the inner side surface of the striker plate (3) is provided with a rubber plate (10).

9. The tunnel dry-jet support feeding conveying equipment as claimed in claim 1, wherein the adjusting support frame (4) is composed of a second internal thread cylinder (401) and a second threaded rod (402);

the second internal thread barrel (401) is arranged on two sides of the main frame (1), and the second threaded rod (402) is in threaded connection with the second internal thread barrel (401).

10. The tunnel dry-jet support feeding and conveying equipment as claimed in claim 1, characterized in that the lower side of the main frame (1) is provided with a travelling wheel (11).

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