Lifting conveying device for building construction

Abstract

The invention relates to the technical field of elevators, in particular to a building construction lifting conveying device which comprises a driving wheel, a driven wheel, a transmission belt, an induction wheel, a lifting assembly and a transmission assembly, the driving wheel can be close to or away from the driven wheel, the induction wheel and the driving wheel are coaxial and are in threaded connection, and the driving wheel, the induction wheel and the transmission wheel are sleeved with the transmission belt; the friction coefficient between the induction wheel and the transmission belt is larger than that between the driving wheel and the transmission belt. The lifting assembly is used for controlling the distance between the driving wheel and the driven wheel, and the transmission assembly is used for transmitting movement kinetic energy of the induction wheel in the axial direction of the driving wheel to the lifting assembly. 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 positively rotate relative to the driving wheel, the distance between the driving wheel and the driven wheel is increased through the transmission assembly and the lifting assembly, and the friction force between the driving wheel and the transmission belt is increased.

Description

Technical Field

[0001] The invention relates to the technical field of hoists, and in particular to a lifting and conveying device for building construction. Background Art

[0002] Bucket elevator is a transportation equipment that continuously transports materials on the traction part of the transmission belt. It is often used as a conveying machinery for continuously lifting bulk materials in a vertical or nearly vertical direction. Common transmission methods are belt drive and chain drive. The transmission belt of a belt-driven bucket elevator is generally a rubber belt, which is installed on the lower or upper transmission roller and the upper and lower redirecting rollers. When transporting materials, the rubber belt is prone to slipping with the transmission roller. At this time, it is necessary to manually adjust the distance between the transmission roller and the redirecting roller to further tighten the rubber belt, increase the contact pressure between the rubber belt and the roller, and thus increase the friction between the rubber belt and the roller. In order to save trouble and improve work efficiency, workers generally adjust the contact pressure between the rubber belt and the roller to the maximum to reduce the number of adjustments, but this will shorten the service life of the rubber belt. Summary of the invention

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

[0004] The above purpose is achieved through the following technical solutions: A lifting and conveying device for construction, comprising a shell, a driving wheel, a driven wheel, a transmission belt and an adjusting mechanism, wherein the shell is fixedly arranged, the driving wheel and the driven wheel are rotatably arranged in the shell, and the driving wheel is located above the driven wheel, and 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 shell along the first direction, the transmission belt is sleeved on the driving wheel and the transmission wheel, and a hopper for conveying materials is provided on the side of the transmission belt away from the driving wheel; the adjusting mechanism comprises an induction wheel, a torsion spring, a lifting assembly and a transmission assembly, the induction wheel is coaxial with the driving wheel and is perpendicular to the driving wheel The diameters are consistent, and the induction wheel is threadedly connected to the driving wheel. 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 in the first direction between the driving wheel and the driven wheel 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.

[0005] Preferably, two adjustment mechanisms are provided, and the two adjustment mechanisms are located on both sides of the driving wheel in the axial direction. The two lifting components in the two adjustment 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 adjustment mechanisms at the same time.

[0006] Preferably, an adjustment ring is provided at both ends of the driving wheel, the adjustment ring is coaxial with the driving wheel, and the adjustment ring and the driving wheel are connected by bolts, the bolts are rotatably connected to the adjustment ring, and the bolts are threadedly connected to the driving wheel, and the rotation of the bolts can change the distance between the adjustment ring and the end face of the driving wheel.

[0007] Preferably, 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 is rotationally connected to the driving wheel, and 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 via the spiral groove. The transmission assembly in the same adjusting mechanism can drive the gear shaft to rotate.

[0008] Preferably, a damping rod is provided inside the sleeve, the damping rod is coaxial with the sleeve, and two ends of the damping rod are respectively connected to the sleeve and the gear shaft.

[0009] Preferably, both ends of the driving wheel are provided with a fixed shaft, the fixed shaft passes through the shell and is slidably connected to the shell, and 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, and the rotating drum, gear shaft and sleeve are all located outside the shell.

[0010] Preferably, 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.

[0011] Preferably, 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.

[0012] Preferably, 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.

[0013] Preferably, a top cover is provided on the shell, and the top cover is located above the driving wheel.

[0014] The beneficial effects of the present invention are as follows: through the coordinated arrangement of the driving wheel and the induction wheel, when the contact pressure between the transmission belt and the two is consistent, the friction between the driving wheel and the transmission belt is less than the friction between the induction wheel and the transmission belt. When the friction between the driving wheel and the transmission belt is not enough to drive the transmission belt to move, the induction wheel can rotate positively relative to the driving wheel, and the distance between the driving wheel and the driven wheel is increased through the transmission component and the lifting component, so that the transmission belt is further tightened, the contact pressure between the transmission belt and the driving wheel is increased, and the friction between the driving wheel and the transmission belt is increased; a torsion spring is arranged, and the relative rotation between the driving wheel and the transmission belt when there is slippage between the driving wheel and the transmission belt will cause the torsion spring to store energy. After the mass of the material in the hopper is reduced, the torsion spring will release part of the energy, so that the induction wheel rotates in the opposite direction relative to the driving wheel, and the distance between the driving wheel and the driven wheel is reduced through the transmission component and the lifting component, the tension of the transmission belt is reduced, the service life of the transmission belt is extended, and the degree of automation is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a lifting and conveying device for construction provided by an embodiment of the present invention; Figure 2 for Figure 1 The enlarged view of point A in the middle; Figure 3 A top view of a lifting and conveying device for construction provided by an embodiment of the present invention; Figure 4 for Figure 3 Cross-sectional view along the BB direction; Figure 5 for Figure 4 The enlarged view of point D in the middle; Figure 6 for Figure 3 Sectional view along CC direction; Figure 7 for Figure 6 Enlarged view of point E in the middle; Figure 8 A schematic structural diagram of a lifting and conveying device for construction without a top cover provided by an embodiment of the present invention; Fig. 9 for Figure 8 Enlarged view of point F in the middle.

[0016] in: 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, rotating drum; 113, gear shaft; 114, sleeve; 115, damping rod; 120, fixed shaft; 121, rotating frame; 122, rack plate; 123, limit plate; 124, ring groove; 125, feed port; 126, discharge port; 127, top cover. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is 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.

[0018] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are 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 cannot be understood as a limitation to the present invention.

[0019] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0020] like Figures 1 to 9As shown, an embodiment of the present invention provides a lifting and conveying device for construction, comprising 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. It is assumed that the extension direction of the connection line between the driving wheel 101 and the driven wheel 102 is a 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 transmission wheel. A hopper 104 for conveying materials is provided 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 on the circumference of the transmission belt 103; the adjusting mechanism includes an induction wheel 105, a torsion spring 10 6. Lifting assembly and 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, and the transmission belt 103 sleeved on the driving wheel 101 can also be sleeved on the induction wheel 105, and 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; the two ends of the torsion spring 106 are respectively connected to the driving wheel 101 and the induction wheel 105, and are used to store or release 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 material 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 amount of energy accumulated in the torsion spring 106 is positively correlated with the mass of the material in the hopper 104.

[0021] By the coordinated arrangement of the driving wheel 101 and the induction wheel 105, when the contact pressure between the transmission belt 103, the driving wheel 101 and the induction wheel 105 is consistent, the friction between the driving wheel 101 and the transmission belt 103 is less than the friction between the induction wheel 105 and the transmission belt 103. When the friction between the driving wheel 101 and the transmission belt 103 is not enough to drive the transmission belt 103 to move, the induction wheel 105 can rotate positively relative to the driving wheel 101, and the distance between the driving wheel 101 and the driven wheel is increased through the transmission assembly and the lifting assembly, so that the transmission belt 103 is further tightened, thereby improving the contact between the transmission belt 103 and the driving wheel. The contact pressure between the wheels 101 increases the friction between the driving wheel 101 and the transmission belt 103; a torsion spring 106 is provided, and when the driving wheel 101 and the transmission belt 103 slip, the relative rotation generated by the induction wheel 105 causes the torsion spring 106 to store energy. After the mass of the material in the hopper 104 is reduced, the torsion spring 106 releases part of the energy, thereby causing the induction wheel 105 to rotate in the opposite direction relative to the driving wheel 101. The distance between the driving wheel 101 and the driven wheel 102 is reduced through the transmission assembly and the lifting assembly, the tension of the transmission belt 103 is reduced, the service life of the transmission belt 103 is extended, and the degree of automation is improved.

[0022] In this embodiment, two adjusting mechanisms are provided, and 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 and lowering of the two ends of the driving wheel 101 respectively. When the transmission belt 103 is in the center position on the driving wheel 101, the transmission belt 103 contacts the two induction wheels 105 in the two adjusting mechanisms at the same time. If slippage occurs between the transmission belt 103 and the driving wheel 101 at this time, the two lifting components are lifted and lowered synchronously, and the driving wheel 101 will not tilt. On the contrary, the transmission belt 103 will separate 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 shell 100, and cause extrusion and crushing of the returned material in the shell 100; while the distance between the driving wheel 101 and the driven wheel 102 increases, if the transmission belt 103 contacts one of the induction wheels 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.

[0023] In this embodiment, an adjusting ring 107 is provided at both ends of the driving wheel 101, the adjusting ring 107 is coaxial with the driving wheel 101, and the adjusting ring 107 and the driving wheel 101 are connected by bolts, the bolts are rotatably connected to the adjusting ring 107, and the bolts are threadedly connected to the driving wheel 101, and the rotation of the bolts can change the distance between the adjusting ring 107 and the end face of the driving wheel 101; the induction wheel 105 is annular, and the two end faces of the driving wheel 101 are provided with a truncated cone 110, and each adjusting ring 107 corresponds to a truncated cone 110; the induction wheel 105 in each adjustment mechanism is sleeved on a truncated cone 110, and the induction wheel 105 is threadedly connected to the corresponding truncated cone 110, and a groove 111 is provided 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 the two ends of the torsion spring 106 are fixedly connected to the adjusting ring 107 and the driving wheel 101. In the initial state, the torsion spring 106 is in a normal state and no energy is accumulated. The swing of the transmission belt 103 on the driving wheel 101 will change the distance between the hopper 104 and the transmission belt 103 and the inner wall of the shell 100, which will squeeze the return material inside the shell 100 and cause wear to the shell 100 and the transmission belt 103. The larger the particle size of the return material, the greater the probability of being squeezed. Bolts are set to adjust the distance between the induction wheel 105 on the truncated table 110 and the center of the driving wheel 101, and change the contact area between the transmission belt 103 and the induction wheel 105 for materials of different particle sizes; when the size of the material is small, the bolts are manually turned to adjust the distance between the adjustment ring 107 and the center of the driving wheel 101 The distance between the adjusting ring 107 and the center of the driving wheel 101 is increased, 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 be corrected only after it has deflected more. When the size of the material is larger, the bolt is manually turned 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 only after it has deflected less, thereby avoiding the transmission belt 103 and the hopper 104 from squeezing the returned material in the shell 100, and also avoiding the transmission belt 103 from swinging back and forth and causing unstable material transportation.

[0024] In this embodiment, the lifting assembly in each adjustment mechanism includes a rotating drum 112, a gear shaft 113 and a sleeve 114. The rotating drum 112 is coaxial with the driving wheel 101, and the rotating drum 112 is rotatably connected to the driving wheel 101, and the rotating drum 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 drum 112 around its own axis; the sleeve 114 is hinged to the housing 100, and the inner circumference of the sleeve 114 and the outer circumference of the gear shaft 113 are both provided with spiral grooves, and the gear shaft 113 and the sleeve 114 are threadedly connected through the spiral grooves. The transmission assembly in the same adjustment mechanism can drive the gear shaft 113 to rotate, and the extension direction of the rotation axis of the sleeve 114 on the housing 100 is respectively aligned with the first direction and the rotation axis of the driving wheel 101. The extension direction is vertical, and two gear shafts 113 and sleeves 114 are each provided. The extension direction of the axis of the sleeve 114 is respectively perpendicular to the extension direction of the axis of the driving wheel 101 and the extension direction of the rotation axis of the sleeve 114 on the shell 100. The extension direction of the rotation axis of the sleeve 114 on the shell 100 is assumed to 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 drum 112 in the second direction, and the two sleeves 114 are located on both sides of the rotating drum 112 in the second direction. Each gear shaft 113 corresponds to a sleeve 114, and two ear plates are provided on the circumference of the rotating drum 112. 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 drum 112 to move through the two ear plates, and the movement of the rotating drum 112 will be more stable.

[0025] In this embodiment, a damping rod 115 is provided inside the sleeve 114. The damping rod 115 is coaxial with the sleeve 114, and the two ends of the damping rod 115 are respectively connected to the sleeve 114 and the gear shaft 113. 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 assembly. 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 delay the speed at which the driving wheel 101 approaches the sleeve 114, so that after the transmission belt 103 is straightened, the driving wheel 101 is maintained at the adjusted position as much as possible.

[0026] In this embodiment, both ends of the driving wheel 101 are provided with a fixed shaft 120, the fixed shaft 120 penetrates the housing 100 and is slidably connected with the housing 100, the rotating drum 112 is sleeved on the fixed shaft 120, and the rotating drum 112 is slidably connected with the fixed shaft 120 along the axial direction of the fixed shaft 120, and the fixed shaft 120 is provided with four retaining rings, the four retaining rings are arranged in sequence along the axial direction of the fixed shaft 120, and each rotating drum 112 is located between two adjacent retaining rings, and the rotating drum 112 can abut against the retaining rings after sliding on the fixed shaft 120 along the axial direction of the fixed shaft 120. 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 connection part of the sleeve 114 and the gear shaft 113 is also outside the housing 100, and the material in the housing 100 will not affect it.

[0027] In this embodiment, the transmission assembly in each adjustment mechanism includes a rotating frame 121 and a rack plate 122. The rotating frame 121 is rotatably connected to the induction wheel 105. The extension direction of the rotation axis of the rotating frame 121 and the induction wheel 105 is consistent with the extension direction of the axis of the induction wheel 105. The rack plate 122 is fixedly installed on the rotating frame 121, and the rack plate 122 is meshed with the gear shaft 113. A limit plate 123 is fixedly installed on the two sleeves 114, and a guide groove is provided on the limit plate 123. The rack plate 122 is slidably arranged in the guide groove along the axial direction of the driving wheel 101 and the axial direction of the gear shaft 113. The guide 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 be well meshed. An annular groove 124 is provided on the inner wall of the induction wheel 105, and the rotating frame 121 is slidably arranged in the annular groove 124 along the circumferential direction of the induction wheel 105; two rack plates 122 are provided, and the two rack plates 122 are located on both sides of the axis of the driving wheel 101 in the second direction, and the two rack plates 122 are respectively engaged with the two gear shafts 113.

[0028] In another embodiment, the circumferential surfaces of the driving wheel 101 and the driven wheel 102 are concave arc surfaces, and the circumferential surface of the induction wheel 105 can be coplanar with the circumferential 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 combined force approaching the center of the driving wheel 101 and the driven wheel 102, so that the transmission belt 103 is not easy to deviate.

[0029] In this embodiment, a driving mechanism, a feed port 125 and a discharge port 126 are provided on the housing 100. The driving mechanism is used to drive the driving wheel 101 to rotate. The feed port 125 and the discharge port 126 are located on both sides of the housing 100 in the first direction, and the discharge port 126 is located above the feed port 125. The transmission belt 103 at the feed port 125 moves from bottom to top, and the transmission belt 103 at the discharge port 126 moves from top to bottom. The driving mechanism includes a motor, a belt and a tensioning assembly. The motor is fixedly mounted 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 in a taut state at all times. The belt has good flexibility and can still have good transmission performance with the belt after the axis extension direction of the fixed shaft 120 changes. After the driving wheel 101 rotates, the rotating wheel can drive the transmission belt 103 to move. The transmission belt 103 located at the feed port 125 conveys the material at the feed port 125 upward through the hopper 104. When the hopper 104 loaded with material passes the axis of the driving wheel 101, it begins to tilt. After the hopper 104 with material passes the highest point of the driving wheel 101, it begins to dump the material, and the material is discharged from the shell 100 through the discharge port 126.

[0030] In this embodiment, a top cover 127 is provided on the housing 100 , and the top cover 127 is located above the driving wheel 101 , so as to facilitate maintenance of the components in the adjustment mechanism.

[0031] The working principle of the lifting and conveying device for construction provided in the above embodiment is as follows: In a normal state, there is a certain friction force between the transmission belt 103 and the driving wheel 101 and the driven wheel 102 respectively, and the transmission belt 103 has a certain conveying capacity.

[0032] First, the motor is started, and the motor drives the fixed shaft 120 to rotate, and the fixed shaft 120 drives the driving wheel 101 to rotate. The rotation of the driving wheel 101 will drive the transmission belt 103 to rotate around the driving wheel 101 and the driven wheel 102, and then the material is added to the inside of the shell 100 through the feed port 125. The rotating transmission belt 103 transports the material at the feed port 125 upward through the hopper 104. The hopper 104 loaded with material throws out the material after passing the highest point of the driving wheel 101, and the material is discharged from the inside of the shell 100 through the discharge port 126.

[0033] In the process of conveying materials, the multiple hoppers 104 take in and discharge materials respectively. At this time, the mass of materials contained in the multiple hoppers 104 will change. If the mass of all materials in the multiple hoppers 104 makes the friction between the driving wheel 101 and the transmission belt 103 insufficient for the driving wheel 101 to drive the transmission belt 103 to move, the driving wheel 101 and the transmission belt 103 move relative to each other, and the induction wheel 105 rotates relative to the driving wheel 101 under the action of the transmission belt 103, the torsion spring 106 starts to store energy, and the induction wheel 105 moves on the round table 110 away from the center of the driving wheel 101, and the induction wheel 105 brings The rotating frame 121 is driven 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 by meshing with the gear shaft 113. The gear shaft 113 rotates under the action of the sleeve 114 to push the drum 112 to move away from the driven wheel 102. 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 transmission belt 103 becomes tighter and tighter, and the contact pressure between the transmission belt 103 and the driving wheel 101 increases, and the friction between the transmission belt 103 and the driving wheel 101 increases. When the friction between the transmission belt 103 and the driving wheel 101 increases to the point that the two can move synchronously, the induction wheel 105 and the driving wheel 101 are relatively stationary, the gear shaft 113 and the sleeve 114 no longer rotate relatively, and the contact pressure between the transmission belt 103 and the driving wheel 101 no longer increases.

[0034] When the mass of the material contained in the hopper 104 decreases at this time, the torsion spring 106 that has accumulated a certain amount of energy begins to release energy, and the induction wheel 105 rotates relative to the driving wheel 101 again under the action of the torsion spring 106, and the induction wheel 105 moves toward the center of the driving wheel 101. At the same time, the induction wheel 105 drives the rack plate 122 to move through the rotating frame 121, and the rack plate 122 drives the gear shaft 113 to move toward the driven wheel 102. The gear shaft 113 drives the driving wheel 101 to approach the driven wheel 102 through the rotating drum 112 and the fixed shaft 120, and the distance between the driving wheel 101 and the driven wheel 102 is reduced, and the contact pressure between the transmission belt 103 and the driving wheel 101 is reduced, so that the friction between the transmission belt 103 and the driving wheel 101 is reduced. At this time, the driving wheel 101 can still drive the transmission belt 103 to rotate through the friction between the transmission belt 103 and the transmission belt 103.

[0035] When the driving wheel 101 changes the distance with the driven wheel 102, if the transmission belt 103 deviates on the driving wheel 101 and separates 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, so that the gear shaft 113 rotates in the sleeve 114 through a series of transmissions. 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 speed of the gear shaft 113 moving along its own axial direction is also slow. The induction wheel 105 in contact with the transmission belt 103 will change the distance between the driving wheel 101 and the end 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 end of the driving wheel 101 where the induction wheel 105 in contact with the transmission belt 103 is located moves faster than the other end thereof; if the distance between the driving wheel 101 and the driven wheel 102 is shortening at this time, the end of the driving wheel 101 where the induction wheel 105 in contact with the transmission belt 103 is located moves slower than the other end thereof, and the distance between the end of the driving wheel 101 where the induction wheel 105 in contact with the transmission belt 103 and the driven wheel 102 is greater than the distance between the other end of the driving wheel 101 and the driven wheel 102, and the transmission belt 103 can approach the induction wheel 105 that is not in contact with it, and finally be straightened.

[0036] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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, they should be considered to be within the scope of this specification.

[0037] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached 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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