CN212197182U

CN212197182U - Slope belt conveyor

Info

Publication number: CN212197182U
Application number: CN202020441896.8U
Authority: CN
Inventors: 龙进军; 杨恩春; 王恒冲
Original assignee: Kengic Intelligent Equipment Co ltd
Current assignee: Kengic Intelligent Technology Co Ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-12-22
Anticipated expiration: 2030-03-30

Abstract

Slope belt feeder, adopt a novel drive mechanism in order to improve the lift accuracy and the level on arbitrary high position location that dangles, improve whole power transmission stability and synchronism effectively, reduce artificial intervention and work load. Comprises a bracket, a lead screw connecting rod transmission device and a multi-section machine body; the machine body consists of a three-section conveying line; the lead screw connecting rod transmission device comprises a trapezoidal lead screw which is driven and connected by a lifting speed reducing motor, and a lead screw nut which is connected through threads is sleeved on the trapezoidal lead screw; a driving shaft is vertically arranged on the trapezoidal screw rod and is connected to the screw rod nut, and the driving shaft is formed by welding a cylinder body and shaft heads positioned at two ends of the cylinder body; a shaft head of the driving shaft is connected with a supporting connecting rod for supporting the whole machine body to lift; a second supporting seat of the supporting plate is connected between the supporting connecting rod and the second supporting plate, the top end of the second supporting seat of the supporting plate is welded with the second supporting plate into a whole, and the bottom end of the second supporting seat of the supporting plate is hinged with the supporting connecting rod through a pin shaft.

Description

Slope belt conveyor

Technical Field

The utility model relates to a belt feeder institutional advancement of lifting conveyor according to vertical drop belongs to logistics storage technical field.

Background

In the existing cargo warehousing and sorting operation field of e-commerce and logistics express industry, a lifting type belt conveyor is usually adopted according to vertical fall so as to improve the operation efficiency of the cargo conveying field and reduce the labor load of personnel.

The climbing belt conveyor that uses generally at present, its lift mode is hydraulic transmission structure generally, therefore there is the shortcoming that the weight of emphasis is great, the cost is higher, maintenance and removal are inconvenient etc. in the driving system part.

The lifting device comprises a belt conveyor, a supporting mechanism for supporting the belt conveyor and a lifting mechanism for lifting the supporting mechanism, wherein the lifting mechanism comprises a connecting rod assembly for lifting the supporting mechanism and a driving piece for driving the connecting rod assembly. The connecting rod assembly comprises a connecting rod, a rotating shaft with a fixed axis position and a bottom plate connected with the supporting mechanism, pin bosses are arranged on the bottom surface of the bottom plate, the rotating shaft is parallel to the bottom plate, the connecting rod is arranged in pairs, the connecting rod is respectively embedded at two ends of the rotating shaft and is respectively connected with the pin bosses through pin shafts, so that the connecting rod, the rotating shaft and the bottom plate form a parallel four-bar mechanism, and the driving piece drives the connecting rod.

Above-mentioned current over-and-under type belt feeder still has following technological not enough: 1. the lifting mechanism is still heavy and has larger noise during operation; 2. the lifting end can not always keep a horizontal conveying state and lacks a driving force in the horizontal direction, and the goods are still dragged manually during conveying, so that time and labor are wasted; 3. each section of conveying line is not a uniform transmission system, so that uniform conveying and compatible conveying in the upper and lower 2 directions are difficult to ensure; 4. more importantly, the operation accuracy of the lifting mechanism needs to be improved, and the positioning at any position along the vertical direction is difficult to realize.

In view of this, the following application schemes are proposed.

SUMMERY OF THE UTILITY MODEL

Slope belt feeder, lie in solving the problem that above-mentioned prior art exists and adopt a simple structure, easily control and lightweight drive mechanism to improve the lift accuracy and the level in arbitrary high position location of dangling, improve whole power transmission stability and synchronism, reduce artificial intervention and workload effectively.

In order to achieve the design purpose, the slope belt conveyor comprises a support, a screw rod connecting rod transmission device and a multi-section type machine body, wherein the screw rod connecting rod transmission device is arranged on the support and used for supporting the machine body to lift;

the machine body consists of three-section conveying lines which are sequentially connected along the conveying direction, and comprises a first supporting plate, a second supporting plate and a third supporting plate which are used for bearing a belt to convey goods;

the lead screw connecting rod transmission device comprises a trapezoidal lead screw which is driven and connected by a lifting speed reducing motor, and a lead screw nut which is connected through threads is sleeved on the trapezoidal lead screw; a driving shaft is vertically arranged on the trapezoidal screw rod and is connected to the screw rod nut, and the driving shaft is formed by welding a cylinder body and shaft heads positioned at two ends of the cylinder body;

a shaft head of the driving shaft is connected with a supporting connecting rod for supporting the whole machine body to lift; a second supporting seat of the supporting plate is connected between the supporting connecting rod and the second supporting plate, the top end of the second supporting seat of the supporting plate is welded with the second supporting plate into a whole, and the bottom end of the second supporting seat of the supporting plate is hinged with the supporting connecting rod through a pin shaft.

Furthermore, the lead screw connecting rod transmission device is characterized in that a group of bearing seats and tapered roller bearings are sleeved on the trapezoidal lead screw.

Furthermore, the shaft heads at two ends of the driving shaft of the lead screw connecting rod transmission device are provided with rollers connected by bolts.

Furthermore, the lead screw connecting rod transmission device is provided with a roller wheel spacer bush sleeved between the shaft head of the driving shaft and the roller wheel, and a supporting rod copper bush is sleeved between the supporting connecting rod and the shaft head of the driving shaft.

Furthermore, the top end of the first section of the support connecting rod of the lead screw connecting rod transmission device is hinged with the second supporting seat of the supporting plate through a pin shaft; one end of the supporting arm is hinged with the second section of the supporting connecting rod at a hinge point, and the other end of the supporting arm is hinged with the third supporting seat of the supporting plate; the top ends of the three supporting seats of the supporting plate are welded with the three supporting plates.

Furthermore, the improved scheme aiming at the multi-section connecting structure of the machine body is that a conveying speed reduction motor is arranged between the first supporting plate and the second supporting plate to drive and connect a motor chain wheel, the motor chain wheel transmits power to the first driving chain wheel and the second driving chain wheel through a chain, the two groups of driving chain wheels respectively drive driving rollers at one side of the corresponding supporting plates to rotate, and each driving roller drives a belt sleeved on the driving rollers to operate;

a head-tail roller is arranged at the end part of the other side of the first supporting plate opposite to the driving roller, and a belt runs between the driving roller and the head-tail roller; the driving roller is supported on the inner sides of the first supporting plate and the second supporting plate through a set of narrow vertical seat bearings respectively; correspondingly, another set of narrow vertical seat bearing is sleeved between the shaft end of the driving roller, the outer side of the second supporting plate and the second driving chain wheel, and the narrow vertical seat bearing is fixed on the second supporting plate.

Furthermore, a head-tail roller sleeve which does not rotate along with the head-tail roller is sleeved at the two ends of the head-tail roller.

Furthermore, a gooseneck component is adopted to connect the second supporting plate and the third supporting plate; the gooseneck assembly comprises a two-supporting-plate gooseneck connecting plate, a three-supporting-plate gooseneck connecting plate, an upper gooseneck roller and a lower gooseneck roller; a gooseneck upper roller is connected between the two gooseneck connecting plates of the supporting plate II and the three gooseneck connecting plates of the supporting plate III at the two ends; and a roller shaft of the gooseneck upper roller is nested and arranged on the gooseneck connecting plate of the second supporting plate and is fixed with the second supporting plate, and the gooseneck connecting plate of the third supporting plate is hinged with the roller shaft end of the gooseneck upper roller through a gooseneck bush.

Furthermore, the gooseneck assembly comprises a gooseneck lower roller which is nested between two ends of the inner side of the two gooseneck connecting plates of the supporting plate.

To sum up, the application the slope belt conveyor has following advantage and beneficial effect:

1. the accuracy and the smooth degree of reciprocating sliding of the lifting assembly are improved pertinently, no jamming exists in the whole process, and the service life of the lifting assembly can be prolonged.

2. The power supply that the fuselage goes up and down is gear motor transmission lead screw's mode, guarantees through three-bar linkage structure that foremost transfer chain keeps the horizontality throughout, then need not artificial intervention and drag when being favorable to vertical upwards or carrying the goods downwards, furthest reduces the manual work and promotes the efficiency of carrying the operation correspondingly.

3. In the scheme, the horizontal section and the inclined section conveying line are in transition connection through a special gooseneck structure, so that the two sections can be ensured to share one belt for transmission in any state.

4. The application portable, slope conveyor, increase at the horizontal section of front end have power transmission, and adopt same power supply with the slope section, not only have the convenient advantage of maintenance, and realize under the condition that does not increase the power supply that the front end has power to carry, reduced staff's intensity of labour and low-cost transmission mode.

Drawings

The present application will now be further described with reference to the following drawings.

FIG. 1 is a schematic diagram of a ramp conveyor (up conveyor) of the present application in a raised and horizontal position;

FIG. 2 is a schematic structural view of a lead screw link transmission;

FIG. 3 is a schematic sectional view of a portion of a lead screw drive configuration;

FIG. 4 is a schematic view of the front end of the fuselage as it is raised;

FIG. 5 is an enlarged partial schematic view of FIG. 4;

FIG. 6 is a schematic view of a gooseneck connection between the second pallet and the third pallet;

FIG. 7 is a cross-sectional comparison of a gooseneck attachment structure;

in the attached figures, a bracket 1, a lead screw connecting rod transmission device 2, a machine body 3, a protective guard 4, a protective chain cover 6, a caster 7 and a front wheel folding supporting caster 8;

2-1 parts of a lifting speed reducing motor, 2-2 parts of a roller chain coupler, 2-3 parts of a locking nut, 2-4 parts of a tapered roller bearing, 2-5 parts of a bearing seat, 2-6 parts of a trapezoidal screw rod, 2-7 parts of a screw rod nut, 2-8 parts of a driving shaft, 2-9 parts of a supporting rod copper bush, 2-10 parts of a roller spacer bush, 2-11 parts of a roller, 2-12 parts of a vertical bearing with a seat, 2-13 parts of a supporting connecting rod, 2-14 parts of a pin shaft, 2-15 parts of a second supporting seat of a supporting plate, 2-16 parts of a;

the automatic bearing device comprises a head-tail roller 3-1, a head-tail roller sleeve 3-2, a first supporting plate 3-3, a motor plate 3-4, a conveying speed reducing motor 3-5, a motor chain wheel 3-6, a chain 3-7, a first driving chain wheel 3-8, a second driving chain wheel 3-9, a bearing with a narrow vertical seat 3-10, a bearing spacer 3-11, a driving roller 3-12, a roller shield 3-13, a second supporting plate 3-14, a third supporting plate 3-15 and a gooseneck component 3-16;

the goose neck connecting plate comprises a second goose neck connecting plate 3-1601 of a supporting plate, a third goose neck connecting plate 3-1602 of the supporting plate, a goose neck bush 3-1603, an upper goose neck roller sleeve 3-1604, an upper goose neck roller 3-1605, a lower goose neck roller connecting plate 3-1606 and a lower goose neck roller 3-1607.

Detailed Description

Embodiment 1, as shown in fig. 1, the slope belt conveyor described in this application is suitable for carrying out cargo conveying between two vertical positions having a height difference therebetween, and can realize vertical upward conveying or vertical downward conveying by using the device. The embodiment exemplifies the related structure setting and the lifting control method of the upward conveying.

Specifically, slope belt conveyor including for the integrated device support with play the removal base effect support 1 to and set up the lead screw connecting rod transmission 2 that is used for supporting the fuselage lift, carry multistage formula fuselage 3, rail guard 4, protective chain cover 6, truckle 7 and the folding support truckle 8 in front end on support 1.

The machine body 3 consists of three-section belt conveyors connected in sequence along the conveying direction, and goods are conveyed between two vertical positions with height drop on a supporting plate of the machine body;

the screw rod connecting rod transmission device 2 is used for realizing the lifting power transmission and support of the machine body 3 along the vertical direction;

the front end folding supporting caster 8 realizes the folding function of the supporting leg through the extension and contraction of the nitrogen spring connected with the front end folding supporting caster to further improve the stress balance of the raised rear end part of the machine body 3.

As shown in fig. 2 and 3, the screw rod and connecting rod transmission device 2 is a three-in-one mechanism for realizing power, transmission and support of lifting of the machine body 3, and is a core sleeve of the present application.

The device comprises a trapezoidal lead screw 2-6 which is in driving connection with a lifting speed reducing motor 2-1, wherein the output power of the lifting speed reducing motor 2-1 is transmitted to the trapezoidal lead screw 2-6 through a roller chain coupler 2-2, and a lead screw nut 2-7 which is in threaded connection is sleeved on the trapezoidal lead screw 2-6; when the lifting speed reducing motor 2-1 drives the trapezoidal screw rod 2-6 to rotate clockwise or anticlockwise, the screw rod nut 2-7 moves horizontally back and forth along with the trapezoidal screw rod;

in order to keep the stability of the power transmission of the trapezoidal screw rods 2-6, a group of bearing seats 2-5 and tapered roller bearings 2-4 are sleeved on the trapezoidal screw rods 2-6, and the tapered roller bearings 2-4 can bear heavy axial and radial load support.

The driving shaft 2-8 is vertically arranged on the trapezoidal screw rod 2-6 and is connected with the screw rod nut 2-7, and the driving shaft 2-8 and the screw rod nut 2-7 are connected through bolts and clamping plates welded on the upper side and the lower side of the driving shaft 2-8, so that the whole body can move back and forth along with the screw rod nut 2-7.

The driving shafts 2-8 are used for transmitting the driving force of the trapezoidal screw rods 2-6 to the machine body 3 and are middle driving components for realizing the lifting motion of the machine body 3, and the driving shafts 2-8 are provided with square cylinder bodies and shaft heads positioned at two ends of the cylinder bodies and are welded.

In order to ensure the smooth performance of the front and back operation of the driving shaft 2-8, the shaft heads at the two ends of the driving shaft 2-8 are provided with rollers 2-11 connected by bolts, and the rollers 2-11 slide on the track formed at the base of the bracket 1 in a reciprocating manner to realize the smooth movement of the whole driving shaft 2-8.

The shaft heads of the driving shafts 2 to 8 are connected with supporting connecting rods 2 to 13 for supporting the whole machine body 3 to lift, and the supporting connecting rods 2 to 13 can realize overturning and vertically support the machine body 3 to lift along with the reciprocating sliding of the driving shafts 2 to 8 by taking the shaft heads of the driving shafts 2 to 8 as fulcrums.

In order to prevent the roller from being stuck because of the mutual approach when the rollers 2-11 and the supporting connecting rods 2-13 move, roller spacer bushes 2-10 are sleeved between the shaft heads of the driving shafts 2-8 and the rollers 2-11.

In order to increase the lubricity of the rotation of the support connecting rods 2-13 and the driving shafts 2-8, support rod copper sleeves 2-9 are sleeved between the support connecting rods and the driving shafts.

A second supporting seat 2-15 of the supporting plate is connected between the supporting connecting rod 2-13 and the second supporting plate 3-14, the top end of the second supporting seat 2-15 of the supporting plate is welded with the second supporting plate 3-14 into a whole, and the bottom end of the second supporting seat 2-15 of the supporting plate is hinged with the supporting connecting rod 2-13 through a pin shaft 2-14. When the support connecting rods 2-13 rotate, the support seats 2-15 of the second supporting plate drive the second supporting plate 3-14 to rotate and vertically lift.

The supporting connecting rod 2-13 is connected and welded and fixed by a first section 2-131 and a second section 2-132 of a two-section structure, so as to ensure that the supporting plate I3-3 is always kept in a horizontal state in the vertical lifting process.

Specifically, in the two-section structure of the support connecting rod 2-13, the top end of the first section 2-131 is hinged with the second supporting seat 2-15 of the supporting plate through a pin shaft 2-14; one end of the supporting arm 2-16 is hinged with the second section 2-132 of the supporting connecting rod 2-13 at a hinged point 2-141, and the other end of the supporting arm 2-16 is hinged with the three supporting seats 2-17 of the supporting plate; the top ends of the three supporting seats 2-17 of the supporting plate are welded with the three supporting seats 3-15 of the supporting plate.

By applying the specially designed support connecting rod 2-13 structure, the lifting action of the support arm 2-16 can be effectively transmitted, and the supporting plate 3-15 is driven by the supporting plate three support seat 2-17 to always keep a horizontal state in the lifting process.

The screw rod connecting rod transmission device 2 is integrally arranged below the machine body 3, and the idle space below the machine body 3 is fully utilized, so that the whole equipment of the belt conveyor is more compact in structure, light and convenient to move.

As shown in fig. 4 and 5, the body 3 has a three-section type belt conveyor conveying structure, including a first pallet 3-3, a second pallet 3-14 and a third pallet 3-15 for carrying a belt to convey goods.

Wherein, between the first supporting plate 3-3 and the second supporting plate 3-14, the conveying speed reducing motor 3-5 is fixed on the bracket 1 through the motor plate 3-4, the conveying speed reducing motor 3-5 outputs power to drive the motor chain wheel 3-6 to synchronously rotate, the motor chain wheel 3-6 transmits the power to the first driving chain wheel 3-8 and the second driving chain wheel 3-9 through the chain 3-7, the two groups of driving chain wheels respectively drive the driving rollers 3-12 at one side of the corresponding supporting plate to rotate, and each driving roller 3-12 drives the operation of the belt sleeved on the driving roller to vertically convey goods.

The first supporting plate 3-3 is a manual goods sorting station, a head-tail roller 3-1 is arranged at the end part of the first supporting plate opposite to the driving roller 3-12, and a belt is driven by the driving roller 3-12 to run between the driving roller 3-12 and the head-tail roller 3-1;

in order to prevent the head and tail rollers 3-1 from clamping and driving fingers of an operator to be rolled into the belt when rotating, head and tail roller sleeves 3-2 which do not rotate along with the head and tail rollers 3-1 are sleeved at the two ends of the head and tail rollers 3-1.

The driving rollers 3-12 are respectively supported at the inner sides of the first supporting plate 3-3 and the second supporting plate 3-14 through a set of narrow vertical seat bearings 3-10, and the driving rollers 3-12 can rotate around the narrow vertical seat bearings 3-10 to drive a belt to operate so as to convey goods;

correspondingly, another set of narrow vertical seat bearing 3-10 is sleeved between the shaft end of the driving roller 3-12, the outer side of the supporting plate II 3-14 and the driving chain wheel II 3-9, and the narrow vertical seat bearing 3-10 is fixed on the supporting plate II 3-14, so that the supporting plate II 3-14 can rotate along the vertical direction along with the narrow vertical seat bearing 3-10 on the outer side by taking the driving roller 3-12 as a rotating shaft, and vertical lifting is realized.

In conclusion, the driving shaft 2-8, the supporting connecting rod 2-13 and the supporting plate two 3-14 form a three-connecting-rod mechanism, the supporting connecting rod 2-13 is hinged with the driving shaft 2-8 through the supporting rod copper sleeve 2-9, and when the driving shaft 2-8 moves left and right on the trapezoidal screw rod 2-6, the supporting connecting rod 2-13 moves left and right along with the driving shaft 2-8 and rotates around the driving shaft. The support connecting rod 2-13 is hinged with a second support seat 2-15 of the supporting plate fixed on the second supporting plate 3-14 through a pin shaft, and when the support connecting rod 2-13 rotates, the second supporting plate 3-14 rotates around the driving roller 3-12 along with the support connecting rod.

As shown in fig. 6 and 7, the gooseneck assemblies 3-16 of the following structure are adopted to connect the second supporting plate 3-14 and the third supporting plate 3-15.

The gooseneck assembly 3-16 comprises a second gooseneck connecting plate 3-1601 of the supporting plate, a third gooseneck connecting plate 3-1602 of the supporting plate, an upper gooseneck roller 3-1605 and a lower gooseneck roller 3-1607. Wherein,

a gooseneck upper roller 3-1605 and a gooseneck lower roller 3-1607 are connected between the two-end supporting plate second gooseneck connecting plates 3-1601 and the supporting plate third gooseneck connecting plates 3-1602;

the roller shafts of the gooseneck upper rollers 3-1605 are nested and arranged on the gooseneck connecting plates 3-1601 of the two supporting plates and are fixed with the two supporting plates 3-14, the gooseneck connecting plates 3-1602 of the three supporting plates are hinged with the roller shaft ends of the gooseneck upper rollers 3-1605 through gooseneck bushings 3-1603, so that the three supporting plates 3-15 can rotate around the gooseneck upper rollers 3-1605, and the three supporting plates 3-15 and the two supporting plates 3-14 can present different included angles. A gooseneck upper roller 3-1605 is arranged between the third supporting plate 3-15 and the second supporting plate 3-14 as a transition roller, and the belt can smoothly transition between the upper surfaces of the two supporting plates.

Similarly, the gooseneck lower rollers 3-1607 are nested between the two ends of the inner sides of the gooseneck connecting plates 3-1601 of the two pallets, so that the belts can rotate below the gooseneck lower rollers 3-1607 and do not rub against the third pallets 3-15 and the second pallets 3-14, one belt can be shared between the third pallets 3-15 and the second pallets 3-14 to convey goods smoothly, and the other belt can be independently operated on the first pallets 3-3.

Therefore, the three-section type conveying supporting plate of the machine body 3 of the belt conveyor can finish the relay type conveying driving of the whole belt conveyor and two belts by adopting one power device of the conveying speed reducing motors 3-5, so that the whole structure is simpler and more convenient, the weight is lighter, and the cost is lower.

In summary, the embodiments presented in connection with the figures are only preferred. It is obvious to those skilled in the art that other alternative structures according to the design concept of the present invention can be derived directly from the above teachings, and the present invention shall also fall within the scope of the present invention.

Claims

1. The utility model provides a slope belt conveyor which characterized in that: comprises a bracket, a screw rod connecting rod transmission device which is arranged on the bracket and used for supporting the lifting of a machine body, and a multi-section machine body for conveying goods;

the lead screw connecting rod transmission device comprises a trapezoidal lead screw which is driven and connected by a lifting speed reducing motor, and a lead screw nut which is connected through threads is sleeved on the trapezoidal lead screw;

a driving shaft is vertically arranged on the trapezoidal screw rod and is connected to the screw rod nut, and the driving shaft is formed by welding a cylinder body and shaft heads positioned at two ends of the cylinder body;

a shaft head of the driving shaft is connected with a supporting connecting rod for supporting the whole machine body to lift;

a second supporting seat of the supporting plate is connected between the supporting connecting rod and the second supporting plate, the top end of the second supporting seat of the supporting plate is welded with the second supporting plate into a whole, and the bottom end of the second supporting seat of the supporting plate is hinged with the supporting connecting rod through a pin shaft;

the supporting connecting rod is provided with a structure which is connected in a two-section way and is welded and fixed, the top end of the first section of the supporting connecting rod is hinged with the second supporting seat of the supporting plate through a pin shaft, the second section of the supporting connecting rod is hinged with one end of the supporting arm, and the other end of the supporting arm is hinged with the third supporting seat of the supporting plate; the top end of the supporting seat III of the supporting plate is welded with the supporting plate III;

a conveying speed reduction motor is connected between the first supporting plate and the second supporting plate in a driving mode, the motor chain wheel transmits power to the first driving chain wheel and the second driving chain wheel through a chain, the two groups of driving chain wheels respectively drive the driving rollers on one sides of the corresponding supporting plates to rotate, and each driving roller drives the belt sleeved on the driving roller to rotate;

a head-tail roller is arranged at the end part of the other side of the first supporting plate opposite to the driving roller, and a belt runs between the driving roller and the head-tail roller;

the driving roller is supported on the inner sides of the first supporting plate and the second supporting plate through a set of narrow vertical seat bearings respectively; correspondingly, another set of narrow vertical seat bearing is sleeved between the shaft end of the driving roller, the outer side of the second supporting plate and the second driving chain wheel, and the narrow vertical seat bearing is fixed on the second supporting plate.

2. The gradient belt conveyor of claim 1, wherein: the lead screw connecting rod transmission device is characterized in that a group of bearing seats and tapered roller bearings are sleeved on a trapezoidal lead screw.

3. The gradient belt conveyor of claim 2, wherein: the shaft heads at two ends of the driving shaft are provided with roller wheels connected by bolts.

4. The gradient belt conveyor of claim 3, wherein: the lead screw connecting rod transmission device is characterized in that a roller wheel spacer bush is sleeved between a shaft head of a driving shaft and a roller wheel, and a supporting rod copper bush is sleeved between a supporting connecting rod and the shaft head of the driving shaft.

5. The gradient belt conveyor of claim 1, wherein: the head and tail roller sleeves which do not rotate along with the head and tail rollers are sleeved at the two ends of the head and tail rollers.

6. The gradient belt conveyor of claim 1, wherein: the second supporting plate and the third supporting plate are connected by a gooseneck component;

the gooseneck assembly comprises a two-supporting-plate gooseneck connecting plate, a three-supporting-plate gooseneck connecting plate, an upper gooseneck roller and a lower gooseneck roller; a gooseneck upper roller is connected between the two gooseneck connecting plates of the supporting plate II and the three gooseneck connecting plates of the supporting plate III at the two ends;

and a roller shaft of the gooseneck upper roller is nested and arranged on the gooseneck connecting plate of the second supporting plate and is fixed with the second supporting plate, and the gooseneck connecting plate of the third supporting plate is hinged with the roller shaft end of the gooseneck upper roller through a gooseneck bush.

7. The gradient belt conveyor of claim 6, wherein: the gooseneck assembly comprises a gooseneck lower roller which is nested between the two ends of the inner side of the two gooseneck connecting plates of the supporting plate.