A lifting and conveying device for building construction

Abstract

The present invention relates to the technical field of hoists, and in particular to a lifting and conveying device for construction, comprising a driving wheel, a driven wheel, a transmission belt, an induction wheel, a lifting assembly and a transmission assembly, wherein the driving wheel can approach or move away from the driven wheel, the induction wheel is coaxial with the driving wheel and is threadedly connected, and the transmission belt is sleeved on the driving wheel, the induction wheel and the transmission wheel; the friction coefficient between the induction wheel and the transmission belt is greater than the friction coefficient between the driving wheel and the transmission belt; the lifting assembly is used to control the distance between the driving wheel and the driven wheel, and the transmission assembly is used to transfer the moving kinetic energy of the induction wheel along the axial direction of the driving wheel to the lifting assembly. When the friction between the driving wheel and the transmission belt is insufficient to drive the transmission belt to move, the induction wheel can rotate in the positive direction relative to the driving wheel, and the distance between the driving wheel and the driven wheel is increased through the transmission assembly and the lifting assembly, thereby increasing the friction between the driving wheel and the transmission belt.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and particularly to a lifting and conveying device for building construction. Background Art

[0002] A bucket elevator is a transportation device that continuously conveys materials on a traction member of a transmission belt. It is commonly used in the vertical direction or a direction close to the vertical to continuously lift bulk materials for conveying. Common transmission methods are belt drive and chain drive. The transmission belt of a belt-driven bucket elevator generally uses a rubber belt, which is installed on the lower or upper driving drum and the upper and lower redirecting drums. When the rubber belt transports materials, it is prone to slipping with the driving drum. At this time, it is necessary to manually adjust the distance between the driving drum and the redirecting drum to make the rubber belt further tightened, increase the contact pressure between the rubber belt and the drum, and thus increase the friction force between the rubber belt and the drum. To save trouble and improve work efficiency, workers generally adjust the contact pressure between the rubber belt and the drum to the maximum to reduce the number of adjustments. However, this will shorten the service life of the rubber belt. Summary of the Invention

[0003] Based on this, in view of the problem that it is inconvenient to adjust the tightness of the belt of the currently belt-driven bucket elevator, it is necessary to provide a lifting and conveying device for building construction.

[0004] The above object is achieved by the following technical solutions:

[0005] A lifting and conveying device for building construction includes a housing, a driving wheel, a driven wheel, a transmission belt, and an adjusting mechanism. The housing is fixedly arranged. The driving wheel and the driven wheel are rotatably arranged in the housing, and the driving wheel is located above the driven wheel. Let the extending direction of the line connecting the driving wheel and the driven wheel be the first direction, and the first direction is perpendicular to the axis of the driven wheel. The driving wheel can slide relative to the housing along the first direction. The transmission belt is sleeved on the driving wheel and the driven wheel, and a hopper for conveying materials is arranged on the side of the transmission belt away from the driving wheel. The adjusting mechanism includes an induction wheel, a torsion spring, a lifting assembly, and a transmission assembly. The induction wheel is coaxial with the driving wheel and has the same diameter, and the induction wheel is threadedly connected to the driving wheel. The transmission belt sleeved on the driving wheel can also be sleeved on the induction wheel. The friction coefficient between the induction wheel and the transmission belt is greater than the friction coefficient between the driving wheel and the transmission belt. The two ends of the torsion spring are respectively connected to the driving wheel and the induction wheel, and are used for storing or releasing energy when the induction wheel and the driving wheel rotate relative to each other. The lifting assembly is used to control the distance between the driving wheel and the driven wheel in the first direction according to the mass of the materials in the hopper, and the transmission assembly is used to transfer the moving kinetic energy of the induction wheel along the axial direction of the driving wheel to the lifting assembly. The energy stored in the torsion spring is positively correlated with the mass of the materials in the hopper.

[0006] Preferably, there are two adjusting mechanisms, which are located on both sides of the driving wheel in the axial direction. The two lifting components in the two adjusting mechanisms control the two ends of the driving wheel to lift respectively. When the transmission belt is in the middle position on the driving wheel, the transmission belt is in contact with the two sensing wheels in the two adjusting mechanisms at the same time.

[0007] Preferably, adjusting rings are respectively arranged at both ends of the driving wheel. The adjusting rings are coaxial with the driving wheel, and the adjusting rings and the driving wheel are connected by bolts. The bolts are rotatably connected with the adjusting rings and are threadedly connected with the driving wheel. Rotating the bolts can change the distance between the adjusting rings and the end faces of the driving wheel.

[0008] Preferably, the lifting component in each adjusting mechanism includes a rotating cylinder, a gear shaft and a sleeve. The rotating cylinder is coaxial with the driving wheel, and the rotating cylinder is rotatably connected with the driving wheel and is slidably connected with the driving wheel along the axial direction of the driving wheel. One end of the gear shaft is rotatably arranged on the rotating cylinder around its own axis; the sleeve is hinged to the housing, and spiral grooves are arranged on the inner peripheral surface of the sleeve and the outer peripheral surface of the gear shaft. The gear shaft and the sleeve are threadedly connected through the spiral grooves, and the transmission component in the same adjusting mechanism can drive the gear shaft to rotate.

[0009] Preferably, a damping rod is arranged inside the sleeve. The damping rod is coaxial with the sleeve, and both ends of the damping rod are connected with the sleeve and the gear shaft respectively.

[0010] Preferably, fixed shafts are arranged at both ends of the driving wheel. The fixed shafts penetrate through the housing and are slidably connected with the housing, and the rotating cylinder is slidably connected with the fixed shafts along the axial direction of the fixed shafts. The rotating cylinder is sleeved on the fixed shafts, and the rotating cylinder, the gear shaft and the sleeve are all located outside the housing.

[0011] Preferably, the transmission component in each adjusting mechanism includes a rotating frame and a rack plate. The rotating frame is rotatably connected with the sensing wheel, and the extending direction of the axis of rotation of the rotating frame and the sensing wheel is the same as the extending direction of the axis of the sensing wheel. The rack plate is fixedly installed on the rotating frame and meshes with the gear shaft.

[0012] Preferably, the peripheral surfaces of the driving wheel and the driven wheel are concave arc surfaces, and the peripheral surface of the sensing wheel can be coplanar with the peripheral surface of the driving wheel.

[0013] Preferably, a driving mechanism, a feeding port and a discharging port are arranged on the housing. The driving mechanism is used to drive the driving wheel to rotate. The feeding port and the discharging port are located on both sides of the housing in the first direction, and the discharging port is located above the feeding port. The transmission belt at the feeding port moves from bottom to top, and the transmission belt at the discharging port moves from top to bottom.

[0014] Preferably, a top cover is arranged on the housing, and the top cover is located above the driving wheel.

[0015] The beneficial effects of the present invention are as follows: Through the cooperative setting of the driving wheel and the induction wheel, when the contact pressure between the transmission belt and the two of them is consistent, the friction force between the driving wheel and the transmission belt is less than the friction force between the induction wheel and the transmission belt. When the friction force between the driving wheel and the transmission belt is insufficient to drive the transmission belt to move, the induction wheel can rotate forward relative to the driving wheel. Through the transmission component and the lifting component, the distance between the driving wheel and the driven wheel is increased, the transmission belt is further tightened, the contact pressure between the transmission belt and the driving wheel is increased, and the friction force between the driving wheel and the transmission belt is increased; A torsion spring is provided. When the driving wheel and the transmission belt slip, the relative rotation generated with the induction wheel will cause the torsion spring to store energy. After the mass of the material in the hopper decreases, the torsion spring will release part of the energy, so that the induction wheel rotates reversely relative to the driving wheel. Through the transmission component and the lifting component, the distance between the driving wheel and the driven wheel is reduced, the tension degree of the transmission belt is reduced, while the service life of the transmission belt is extended, and the degree of automation is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a schematic structural diagram of a lifting and conveying device for building construction provided by an embodiment of the present invention;

[0017] Figure 2 is Figure 1 an enlarged view of part A in;

[0018] Figure 3 FIG. is a top view of a lifting and conveying device for building construction provided by an embodiment of the present invention;

[0019] Figure 4 is Figure 3 a sectional view taken along line B-B in;

[0020] Figure 5 is Figure 4 an enlarged view of part D in;

[0021] Figure 6 is Figure 3 a sectional view taken along line C-C in;

[0022] Figure 7 is Figure 6 an enlarged view of part E in;

[0023] Figure 8 FIG. is a schematic structural diagram of a lifting and conveying device for building construction without a top cover provided by an embodiment of the present invention;

[0024] Figure 9 is Figure 8 an enlarged view of part F in.

[0025] Wherein:

[0026] 100. Housing; 101. Driving wheel; 102. Driven wheel; 103. Transmission belt; 104. Hopper; 105. Induction wheel; 106. Torsion spring; 107. Adjusting ring; 110. Frustum; 111. Groove; 112. Rotary drum; 113. Gear shaft; 114. Sleeve; 115. Damping rod; 120. Fixed shaft; 121. Rotating frame; 122. Rack plate; 123. Limiting plate; 124. Ring groove; 125. Feed inlet; 126. Discharge outlet; 127. Top cover. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The "connection" and "coupling" mentioned in the present invention, unless otherwise specifically stated, both include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0030] As Figures 1 to 9As shown in the figure, a lifting and conveying device for building construction provided by an embodiment of the present invention includes a housing 100, a driving wheel 101, a driven wheel 102, a transmission belt 103, and an adjusting mechanism. The housing 100 is fixedly arranged, the driving wheel 101 and the driven wheel 102 are rotatably arranged in the housing 100, and the driving wheel 101 is located above the driven wheel 102. Let the extending direction of the connection line between the driving wheel 101 and the driven wheel 102 be the first direction, and the first direction is perpendicular to the axis of the driven wheel 102. The driving wheel 101 can slide relative to the housing 100 along the first direction. The transmission belt 103 is sleeved on the driving wheel 101 and the driving wheel. A hopper 104 for conveying materials is arranged on the side of the transmission belt 103 away from the driving wheel 101. There are multiple hoppers 104, and the multiple hoppers 104 are evenly distributed around the circumferential surface of the transmission belt 103 on the transmission belt 103; the adjusting mechanism includes an induction wheel 105, a torsion spring 106, a lifting assembly, and a transmission assembly. The induction wheel 105 is coaxial with the driving wheel 101 and has the same diameter, and the induction wheel 105 is threadedly connected to the driving wheel 101. The transmission belt 103 sleeved on the driving wheel 101 can also be sleeved on the induction wheel 105. The friction coefficient between the induction wheel 105 and the transmission belt 103 is greater than the friction coefficient between the driving wheel 101 and the transmission belt 103; both ends of the torsion spring 106 are respectively connected to the driving wheel 101 and the induction wheel 105, and are used for storing or releasing energy when the induction wheel 105 and the driving wheel 101 rotate relative to each other; the lifting assembly is used to control the distance between the driving wheel 101 and the driven wheel 102 in the first direction according to the mass of the materials in the hopper 104, and the transmission assembly is used to transfer the moving kinetic energy of the induction wheel 105 along the axial direction of the driving wheel 101 to the lifting assembly; the energy stored in the torsion spring 106 is positively correlated with the mass of the materials in the hopper 104.

[0031] Through the cooperative setting of the driving wheel 101 and the induction wheel 105, when the contact pressure between the transmission belt 103 and the driving wheel 101 and the induction wheel 105 is the same, the frictional force between the driving wheel 101 and the transmission belt 103 is less than the frictional force between the induction wheel 105 and the transmission belt 103. When the frictional force between the driving wheel 101 and the transmission belt 103 is insufficient to drive the transmission belt 103 to move, the induction wheel 105 can rotate forward relative to the driving wheel 101. Through the transmission component and the lifting component, the distance between the driving wheel 101 and the driven wheel is increased, so that the transmission belt 103 is further tightened, the contact pressure between the transmission belt 103 and the driving wheel 101 is increased, and the frictional force between the driving wheel 101 and the transmission belt 103 is increased; a torsion spring 106 is provided. When the driving wheel 101 and the transmission belt 103 slip, the relative rotation with the induction wheel 105 will cause the torsion spring 106 to store energy. After the mass of the material in the hopper 104 decreases, the torsion spring 106 will release part of the energy, so that the induction wheel 105 rotates reversely relative to the driving wheel 101. Through the transmission component and the lifting component, the distance between the driving wheel 101 and the driven wheel 102 is reduced, the tension degree of the transmission belt 103 is reduced, the service life of the transmission belt 103 is extended, and the degree of automation is also improved.

[0032] In this embodiment, there are two adjusting mechanisms. The two adjusting mechanisms are located on both sides of the driving wheel 101 in the axial direction. The two lifting components in the two adjusting mechanisms control the lifting of the two ends of the driving wheel 101 respectively. When the transmission belt 103 is in the middle position on the driving wheel 101, the transmission belt 103 is in contact with the two induction wheels 105 in the two adjusting mechanisms at the same time. If the transmission belt 103 slips with the driving wheel 101 at this time, the two lifting components will lift and lower synchronously, and the driving wheel 101 will not tilt. On the contrary, the transmission belt 103 will be separated from one of the induction wheels 105. At this time, the transmission belt 103 is offset on the driving wheel 101, and the stretching degree of the transmission belt 103 is inconsistent. At the same time, the transmission belt 103 and the hopper 104 may also rub against the inner wall of the housing 100 and cause extrusion and crushing of the returned material in the housing 100; while the distance between the driving wheel 101 and the driven wheel 102 increases, if the transmission belt 103 is in contact with one induction wheel 105, the distance between the end of the driving wheel 101 close to the induction wheel 105 and the driven wheel 102 increases under the action of the lifting component, and the driving wheel 101 tilts, so that the transmission belt 103 is straightened on the driving wheel 101.

[0033] In this embodiment, adjusting rings 107 are respectively provided at both ends of the driving wheel 101. The adjusting rings 107 are coaxial with the driving wheel 101, and the adjusting rings 107 and the driving wheel 101 are connected by bolts. The bolts are rotatably connected to the adjusting rings 107 and are threadedly connected to the driving wheel 101. Rotating the bolts can change the distance between the adjusting rings 107 and the end faces of the driving wheel 101; the induction wheel 105 is annular, and frustums 110 are provided on the two end faces of the driving wheel 101, and each adjusting ring 107 corresponds to a frustum 110; the induction wheel 105 in each adjusting mechanism is sleeved on a frustum 110, and the induction wheel 105 is threadedly connected to the corresponding frustum 110. A groove 111 is formed at one end of the induction wheel 105 away from the center of the driving wheel 101, and the torsion spring 106 is arranged in the groove 111, and both ends of the torsion spring 106 are fixedly connected to the adjusting ring 107 and the driving wheel 101 respectively. In the initial state, the torsion spring 106 is in a normal state and does not store energy. The swing of the transmission belt 103 on the driving wheel 101 will cause the distances between the hopper 104 and the transmission belt 103 and the inner wall of the housing 100 to change, which will cause extrusion of the returned material inside the housing 100 and also cause wear to the housing 100 and the transmission belt 103. The larger the particle size of the returned material, the greater the probability of being extruded. By setting the bolts, the distance between the induction wheel 105 on the frustum 110 and the center of the driving wheel 101 can be adjusted, and the contact area between the transmission belt 103 and the induction wheel 105 can be changed for materials with different particle sizes; when the size of the material is small, manually rotate the bolts to reduce the distance between the adjusting ring 107 and the center of the driving wheel 101, and the contact area between the two induction wheels 105 and the transmission belt 103 in the axial direction of the driving wheel 101 is larger, and the transmission belt 103 will deflect more before being corrected; when the size of the material is large, manually rotate the bolts to increase the distance between the adjusting ring 107 and the center of the driving wheel 101, and the contact area between the two induction wheels 105 and the transmission belt 103 in the axial direction of the driving wheel 101 is smaller, and the transmission belt 103 will be corrected after deflecting less, avoiding extrusion of the returned material in the housing 100 by the transmission belt 103 and the hopper 104, and at the same time, it can also avoid unstable material transportation caused by the back-and-forth swing of the transmission belt 103.

[0034] In this embodiment, the lifting component in each adjusting mechanism includes a rotating cylinder 112, a gear shaft 113, and a sleeve 114. The rotating cylinder 112 is coaxial with the driving wheel 101, and the rotating cylinder 112 is rotatably connected to the driving wheel 101, and the rotating cylinder 112 is slidably connected to the driving wheel 101 along the axial direction of the driving wheel 101; one end of the gear shaft 113 is rotatably arranged on the rotating cylinder 112 around its own axis; the sleeve 114 is hinged to the housing 100, and spiral grooves are provided on both the inner peripheral surface of the sleeve 114 and the outer peripheral surface of the gear shaft 113, and the gear shaft 113 and the sleeve 114 are threadedly connected through the spiral grooves. The transmission component in the same adjusting mechanism can drive the gear shaft 113 to rotate. The extending direction of the rotation axis of the sleeve 114 on the housing 100 is perpendicular to the first direction and the extending direction of the rotation axis of the driving wheel 101 respectively. There are two gear shafts 113 and two sleeves 114. The extending direction of the axis of the sleeve 114 is perpendicular to the extending direction of the axis of the driving wheel 101 and the extending direction of the rotation axis of the sleeve 114 on the housing 100 respectively. Let the extending direction of the rotation axis of the sleeve 114 on the housing 100 be the second direction, and the second direction is perpendicular to the first direction. The two gear shafts 113 are located on both sides of the rotating cylinder 112 in the second direction, and the two sleeves 114 are located on both sides of the rotating cylinder 112 in the second direction. Each gear shaft 113 corresponds to one sleeve 114. Two ear plates are provided on the circumferential surface of the rotating cylinder 112, and each ear plate is rotatably connected to one of the gear shafts 113. The rotation of the two gear shafts 113 can push the rotating cylinder 112 to move through the two ear plates, and the movement of the rotating cylinder 112 will be more stable.

[0035] In this embodiment, a damping rod 115 is provided inside the sleeve 114. The damping rod 115 is coaxial with the sleeve 114, and both ends of the damping rod 115 are connected to the sleeve 114 and the gear shaft 113 respectively. After the transmission belt 103 is separated from one of the induction wheels 105, the induction wheel 105 will rotate under the action of the corresponding torsion spring 106, and drive the gear shaft 113 to rotate through the transmission component. The gear shaft 113 rotates inside the sleeve 114 and drives the driving wheel 101 to approach the sleeve 114. The damping rod 115 will slow down the speed of the driving wheel 101 approaching the sleeve 114, so that after the transmission belt 103 is straightened, the driving wheel 101 can maintain the adjusted position as much as possible.

[0036] In this embodiment, fixed shafts 120 are provided at both ends of the driving wheel 101. The fixed shafts 120 penetrate through the housing 100 and are slidably connected to the housing 100. The rotating drum 112 is sleeved on the fixed shafts 120, and the rotating drum 112 is slidably connected to the fixed shafts 120 along the axial direction of the fixed shafts 120. Four retaining rings are provided on the fixed shafts 120. The four retaining rings are arranged in sequence along the axial direction of the fixed shafts 120, and each rotating drum 112 is located between two adjacent retaining rings. After the rotating drum 112 slides along the axial direction of the fixed shafts 120 on the fixed shafts 120, it can abut against the retaining rings. The rotating drum 112, the gear shaft 113, and the sleeve 114 are all located outside the housing 100. The meshing part of the gear shaft 113 and the sleeve 114 is outside the housing 100, and the connecting part of the sleeve 114 and the gear shaft 113 is also outside the housing 100. The materials inside the housing 100 will not affect them.

[0037] In this embodiment, the transmission assembly in each adjusting mechanism includes a rotating frame 121 and a rack plate 122. The rotating frame 121 is rotatably connected to the sensing wheel 105. The extending direction of the rotation axis of the rotating frame 121 and the sensing wheel 105 is the same as the extending direction of the axis of the sensing wheel 105. The rack plate 122 is fixedly installed on the rotating frame 121, and the rack plate 122 meshes with the gear shaft 113. A limiting plate 123 is fixedly installed on the two sleeves 114. A guiding groove is provided on the limiting plate 123. The rack plate 122 is slidably arranged in the guiding groove along the axial direction of the driving wheel 101 and the axial direction of the gear shaft 113. The guiding groove can limit the movement of the rack plate 122 in the second direction, so that the rack plate 122 and the gear shaft 113 can mesh well. An annular groove 124 is provided on the inner wall of the sensing wheel 105. The rotating frame 121 is slidably arranged in the annular groove 124 along the circumferential direction of the sensing wheel 105; there are two rack plates 122. The two rack plates 122 are located on both sides of the driving wheel 101 in the second direction of the axis, and the two rack plates 122 respectively mesh with the two gear shafts 113.

[0038] In another embodiment, the peripheral surfaces of the driving wheel 101 and the driven wheel 102 are concave arc surfaces. The peripheral surface of the sensing wheel 105 can be coplanar with the peripheral surface of the driving wheel 101. When the transmission belt 103 moves on the driving wheel 101 and the driven wheel 102, the transmission belt 103 will be subjected to a resultant force that approaches the centers of the driving wheel 101 and the driven wheel 102, so that the transmission belt 103 is not easily deflected.

[0039] In this embodiment, a driving mechanism, a feed inlet 125, and a discharge outlet 126 are provided on the housing 100. The driving mechanism is used to drive the driving wheel 101 to rotate. The feed inlet 125 and the discharge outlet 126 are located on both sides of the housing 100 in the first direction, and the discharge outlet 126 is located above the feed inlet 125. The conveyor belt 103 at the feed inlet 125 moves upward from bottom to top, and the conveyor belt 103 at the discharge outlet 126 moves downward from top to bottom. The driving mechanism includes a motor, a belt, and a tensioning assembly. The motor is fixedly installed on the housing 100. The belt is wound around the output shaft of the motor and the fixed shaft 120. The tensioning assembly is used to keep the belt always in a taut state. The belt has good flexibility and can still have good transmission performance with the belt after the extension direction of the axis of the fixed shaft 120 changes. After the driving wheel 101 rotates, the rotating wheel can drive the conveyor belt 103 to move. The conveyor belt 103 located at the feed inlet 125 conveys the material at the feed inlet 125 upward through the hopper 104. When the hopper 104 carrying the material passes through the axis of the driving wheel 101, it starts to tilt. After the hopper 104 with the material passes through the highest point of the driving wheel 101, it starts to dump the material, and the material is discharged from the housing 100 through the discharge outlet 126.

[0040] In this embodiment, a top cover 127 is provided on the housing 100. The top cover 127 is located above the driving wheel 101, which is convenient for repairing the components in the adjusting mechanism.

[0041] The working principle of a lifting and conveying device for building construction provided by the above embodiment is as follows:

[0042] In the normal state, there is a certain frictional force between the conveyor belt 103 and the driving wheel 101 and the driven wheel 102 respectively, and the conveyor belt 103 has a certain conveying capacity.

[0043] First, start the motor. The motor drives the fixed shaft 120 to rotate. The fixed shaft 120 drives the driving wheel 101 to rotate. The rotation of the driving wheel 101 drives the conveyor belt 103 to rotate around the driving wheel 101 and the driven wheel 102. Then, add materials into the housing 100 through the feed inlet 125. The rotating conveyor belt 103 conveys the materials at the feed inlet 125 upward through the hopper 104. The hopper 104 carrying the materials throws the materials after passing through the highest point of the driving wheel 101, and the materials are discharged from the inside of the housing 100 through the discharge outlet 126.

[0044] During the process of conveying materials, multiple hoppers 104 respectively take and discharge materials. At this time, the mass of the materials contained in the multiple hoppers 104 will change. If the frictional force between the driving wheel 101 and the conveyor belt 103 is insufficient to drive the conveyor belt 103 to move due to the total mass of the materials in the multiple hoppers 104, relative movement occurs between the driving wheel 101 and the conveyor belt 103. The sensing wheel 105 rotates relative to the driving wheel 101 under the action of the conveyor belt 103, and the torsion spring 106 begins to store energy. The sensing wheel 105 moves away from the center of the driving wheel 101 on the frustum 110. The sensing wheel 105 drives the push rotating frame 121 to move synchronously, and the rotating frame 121 drives the rack plate 122 to move. The rack plate 122 drives the gear shaft 113 to rotate through meshing with the gear shaft 113. The rotation of the gear shaft 113 pushes the rotating cylinder 112 to move away from the driven wheel 102 under the action of the sleeve 114. The rotation pushes the driving wheel 101 to move away from the driven wheel 102 through the fixed shaft 120. The distance between the driving wheel 101 and the driven wheel 102 increases, the conveyor belt 103 becomes tighter and tighter, the contact pressure between the conveyor belt 103 and the driving wheel 101 increases, and then the frictional force between the conveyor belt 103 and the driving wheel 101 increases. When the frictional force between the conveyor belt 103 and the driving wheel 101 increases to the point where they can move synchronously, the sensing wheel 105 is relatively stationary with respect to the driving wheel 101, the gear shaft 113 and the sleeve 114 no longer rotate relative to each other, and the contact pressure between the conveyor belt 103 and the driving wheel 101 no longer increases.

[0045] When the mass of the materials contained in the hopper 104 decreases at this time, the torsion spring 106 that has stored a certain amount of energy begins to release energy. The sensing wheel 105 rotates relative to the driving wheel 101 again under the action of the torsion spring 106. The sensing wheel 105 moves towards the center of the driving wheel 101. At the same time, the sensing wheel 105 drives the rack plate 122 to move through the rotating frame 121. The rack plate 122 drives the gear shaft 113 to move towards the driven wheel 102. The gear shaft 113 drives the driving wheel 101 to approach the driven wheel 102 through the rotating cylinder 112 and the fixed shaft 120. The distance between the driving wheel 101 and the driven wheel 102 decreases, the contact pressure between the conveyor belt 103 and the driving wheel 101 decreases, and then the frictional force between the conveyor belt 103 and the driving wheel 101 decreases. At this time, the driving wheel 101 can still drive the conveyor belt 103 to rotate through the frictional force between it and the conveyor belt 103.

[0046] When the distance between the driving wheel 101 and the driven wheel 102 is changed, if the transmission belt 103 is offset on the driving wheel 101 and separated from one of the induction wheels 105, the induction wheel 105 separated from the transmission belt 103 will rotate relative to the driving wheel 101 under the action of the torsion spring 106. Thus, through a series of transmissions, the gear shaft 113 rotates in the sleeve 114. Under the action of the damping rod 115, the rotation speed of the gear shaft 113 in the sleeve 114 is relatively slow, and the moving speed of the gear shaft 113 along its own axial direction is also slow. The induction wheel 105 in contact with the transmission belt 103 will change the distance between one end of the driving wheel 101 corresponding to the induction wheel 105 and the driven wheel 102 through a series of transmissions. If the distance between the driving wheel 101 and the driven wheel 102 is increasing at this time, the moving speed of one end of the driving wheel 101 where the induction wheel 105 in contact with the transmission belt 103 is located relative to the other end is faster; if the distance between the driving wheel 101 and the driven wheel 102 is shortening at this time, the moving speed of one end of the driving wheel 101 where the induction wheel 105 in contact with the transmission belt 103 is located relative to the other end is slower. The distance between one end of the driving wheel 101 where the induction wheel 105 in contact with the transmission belt 103 is located and the driven wheel 102 is greater than the distance between the other end of the driving wheel 101 and the driven wheel 102. The transmission belt 103 can move closer to the induction wheel 105 with which it is not in contact and finally be aligned.

[0047] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0048] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A lifting and conveying device for construction, characterized in that: include: The invention relates to a housing, a driving wheel, a driven wheel, a transmission belt and an adjustment mechanism. The housing is fixedly arranged, the driving wheel and the driven wheel are rotatably arranged in the housing, and the driving wheel is located above the driven wheel. The extension direction of the line between the driving wheel and the driven wheel is assumed to be a first direction, and the first direction is perpendicular to the axis of the driven wheel. The driving wheel can slide relative to the housing along the first direction. The transmission belt is sleeved on the driving wheel and the transmission wheel. A hopper for conveying materials is provided on the side of the transmission belt away from the driving wheel. The adjustment mechanism includes an induction wheel, a torsion spring, a lifting assembly and a transmission assembly. The induction wheel is coaxial with the driving wheel and has the same diameter, and the induction wheel is coaxial with the driving wheel and has the same diameter. The wheel is threadedly connected to the driving wheel, and the transmission belt mounted on the driving wheel can also be mounted on the induction wheel. The friction coefficient between the induction wheel and the transmission belt is greater than the friction coefficient between the driving wheel and the transmission belt; the two ends of the torsion spring are respectively connected to the driving wheel and the induction wheel, and are used to store or release energy when the induction wheel and the driving wheel rotate relative to each other; the lifting assembly is used to control the distance between the driving wheel and the driven wheel in the first direction according to the mass of the material in the hopper, and the transmission assembly is used to transfer the moving kinetic energy of the induction wheel along the axial direction of the driving wheel to the lifting assembly; the amount of energy accumulated in the torsion spring is positively correlated with the mass of the material in the hopper.

2. A lifting and conveying device for construction according to claim 1, characterized in that: There are two adjusting mechanisms, which are located on both sides of the driving wheel in the axial direction. The two lifting components in the two adjusting mechanisms control the lifting and lowering of the two ends of the driving wheel respectively. When the transmission belt is in the center position on the driving wheel, the transmission belt contacts the two induction wheels in the two adjusting mechanisms at the same time.

3. A lifting and conveying device for construction according to claim 2, characterized in that: An adjusting ring is provided at both ends of the driving wheel. The adjusting ring is coaxial with the driving wheel and is connected to the driving wheel by bolts. The bolts are rotatably connected to the adjusting ring and are threadably connected to the driving wheel. Rotation of the bolts can change the distance between the adjusting ring and the end face of the driving wheel.

4. A lifting and conveying device for construction according to claim 2, characterized in that: The lifting assembly in each adjusting mechanism includes a rotating drum, a gear shaft and a sleeve. The rotating drum is coaxial with the driving wheel, and the rotating drum is rotationally connected to the driving wheel, and the rotating drum is slidingly connected to the driving wheel along the axial direction of the driving wheel. One end of the gear shaft is rotatably arranged on the rotating drum around its own axis; the sleeve is hinged to the shell, and spiral grooves are provided on the inner circumference of the sleeve and the outer circumference of the gear shaft. The gear shaft and the sleeve are threadedly connected through the spiral groove. The transmission assembly in the same adjusting mechanism can drive the gear shaft to rotate.

5. A lifting and conveying device for construction according to claim 4, characterized in that: A damping rod is arranged inside the sleeve, the damping rod is coaxial with the sleeve, and two ends of the damping rod are respectively connected with the sleeve and the gear shaft.

6. A lifting and conveying device for construction according to claim 4, characterized in that: A fixed shaft is provided at both ends of the driving wheel. The fixed shaft passes through the shell and is slidably connected to the shell. The rotating drum is slidably connected to the fixed shaft along the axial direction of the fixed shaft. The rotating drum is sleeved on the fixed shaft. The rotating drum, gear shaft and sleeve are all located outside the shell.

7. A lifting and conveying device for construction according to claim 4, characterized in that: The transmission assembly in each adjustment mechanism includes a rotating frame and a rack plate. The rotating frame is rotatably connected to the induction wheel. The extension direction of the rotating axis of the rotating frame and the induction wheel is consistent with the extension direction of the axis of the induction wheel. The rack plate is fixedly mounted on the rotating frame, and the rack plate is meshed with the gear shaft.

8. The lifting and conveying device for construction according to claim 1, characterized in that: The peripheral surfaces of the driving wheel and the driven wheel are concave arc surfaces, and the peripheral surface of the induction wheel can be coplanar with the peripheral surface of the driving wheel.

9. The lifting and conveying device for construction according to claim 1, characterized in that: A driving mechanism, a feed port and a discharge port are provided on the shell. The driving mechanism is used to drive the driving wheel to rotate. The feed port and the discharge port are located on both sides of the first direction of the shell, and the discharge port is located above the feed port. The transmission belt at the feed port moves from bottom to top, and the transmission belt at the discharge port moves from top to bottom.

10. The lifting and conveying device for construction according to claim 1, characterized in that: A top cover is arranged on the shell body, and the top cover is located above the driving wheel.

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