CN217867924U - Drive assembly and lifting machine - Google Patents

Drive assembly and lifting machine Download PDF

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Publication number
CN217867924U
CN217867924U CN202222196145.6U CN202222196145U CN217867924U CN 217867924 U CN217867924 U CN 217867924U CN 202222196145 U CN202222196145 U CN 202222196145U CN 217867924 U CN217867924 U CN 217867924U
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wheel
belt
drive
driving
assembly
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李洋
严智凯
毛含舟
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Hai Robotics Co Ltd
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Hai Robotics Co Ltd
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Abstract

The utility model relates to the technical field of mechanical design, in particular to a driving assembly and a hoisting machine, wherein the driving assembly comprises a driving piece, a first driving wheel, a second driving wheel, a first driving belt, a second driving belt, a first synchronizing wheel and a second synchronizing wheel; an output shaft of the driving piece is connected with the first driving wheel and the first synchronous wheel; the second synchronous wheel is in transmission connection with the first synchronous wheel; the second driving wheel and the second synchronizing wheel are coaxially arranged and drive the second driving wheel to rotate through the second synchronizing wheel; the first driving wheel is used for being connected with the lifting assembly through the first driving belt, and the second driving wheel is used for being connected with the lifting assembly of the lifting machine through the second driving belt, so that when the first driving wheel and the second driving wheel rotate synchronously, the lifting assembly is driven to move along the lifting direction through the first driving belt and the second driving belt respectively. Through the mode, the elevator of this application can continue to realize the drive to lifting unit when single drive belt breaks off, guarantees equipment operation's stability and security.

Description

Drive assembly and lifting machine
Technical Field
The utility model relates to a mechanical design technical field, concretely relates to drive assembly and lifting machine.
Background
The hoister is mechanical equipment for transporting goods by changing potential energy, and the goods are driven to move up and down by a mechanical transmission structure to complete the transportation process.
The drive belt is driven to move when the belt wheel rotates in the drive assembly of the existing elevator, and then the drive belt drives the lifting assembly to lift, so that the goods are moved up and down. When the drive belt breaks, the lifting component falls, so that great potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model provides a drive assembly and lifting machine can continue to realize the drive to lifting unit when single drive belt breaks off, guarantees the stability and the security of equipment operation.
According to the utility model discloses an aspect provides a drive assembly, is applied to the lifting machine, and wherein, the lifting machine includes the base, sets up stand on the base and can be for stand elevating movement's lifting unit. The drive assembly includes: the device comprises a driving piece, a first driving wheel, a second driving wheel, a first transmission belt, a second transmission belt, a first synchronous wheel and a second synchronous wheel; an output shaft of the driving piece is connected with the first driving wheel and the first synchronous wheel so as to drive the first driving wheel and the first synchronous wheel to synchronously rotate; the second synchronizing wheel is in transmission connection with the first synchronizing wheel so as to drive the second synchronizing wheel to rotate through the first synchronizing wheel; the second driving wheel and the second synchronizing wheel are coaxially arranged and are driven to rotate through the second synchronizing wheel, so that the first driving wheel and the second driving wheel synchronously rotate; the first driving wheel is used for being connected with the lifting assembly through the first driving belt, and the second driving wheel is used for being connected with the lifting assembly through the second driving belt, so that when the first driving wheel and the second driving wheel rotate synchronously, the lifting assembly is driven to move up and down through the first driving belt and the second driving belt respectively.
In the drive assembly that this application provided, drive first drive belt and second drive belt respectively through first drive wheel and second drive wheel and remove, realize the drive of two drive belts to lifting unit, and then reduce the atress of list drive belt, increase of service life, and through being connected with first synchronizing wheel coaxial with first drive wheel and second synchronizing wheel coaxial with the second drive wheel, realize the transmission of first drive wheel to second drive wheel, make through a driving piece alright with the rotation of first drive wheel and second drive wheel of simultaneous drive, guarantee first drive wheel and the synchronous rotation of second drive wheel, and when one in first drive belt and second drive belt breaks, still can drive lifting unit through another and continue the operation of going up and down, improve the operation security, prevent that lifting unit from taking place the risk of falling.
In an alternative mode, the first synchronous wheel and the second synchronous wheel are connected through a synchronous belt; or the first synchronizing wheel and the second synchronizing wheel are both gears, and the first synchronizing wheel and the second synchronizing wheel are in meshing transmission through an intermediate gear. Through the mode, the transmission from the first synchronizing wheel to the second synchronizing wheel is realized.
In an optional mode, the first synchronizing wheel is connected with the second synchronizing wheel through a synchronous belt, a tension wheel is arranged on one side of the synchronous belt and used for being abutted against the synchronous belt to adjust the tension force of the synchronous belt. Set up the take-up pulley through the one side at the hold-in range to with take-up pulley and hold-in range butt, realize the regulation to hold-in range tensile force size, and then ensure that the transmission is stable between first synchronizing wheel and the second synchronizing wheel, the difficult condition of skidding appears.
In an alternative, the axes of the first and second drive wheels are arranged in parallel, and the first drive wheel is arranged between the second drive wheel and the base such that the first drive belt is parallel to the second drive belt and the first drive belt is located inside the second drive belt. Parallel setting through the axis with first drive wheel and second drive wheel can guarantee to parallel between first drive belt and the second drive belt, and then ensures the stability when first drive belt and second drive belt drive lifting unit reciprocate jointly, avoids taking place the abnormal sound. Set up first drive wheel between second drive wheel and base to guarantee that first drive belt is located the inboard of second drive belt, and follow the direction between the inside and outside, the projection of first drive belt and second drive belt coincides mutually, and then the power distribution who ensures first drive belt and the second drive belt that lifting unit received is even, goes up and down steadily.
In an alternative mode, the linear velocities of the first synchronous wheel and the second synchronous wheel are the same when the first synchronous wheel and the second synchronous wheel are in transmission, and the radius ratio between the first driving wheel and the first synchronous wheel is equal to the radius ratio between the second driving wheel and the second synchronous wheel, so that when the driving part works, the linear velocities of the first driving wheel and the second driving wheel are equal. The linear velocity of first drive wheel and second drive wheel equals when driving through guaranteeing the driving piece, and then makes the translation rate of first drive belt and second drive belt equal, ensures that the tensile force on first drive belt and the second drive belt can keep unchangeable when lifting unit reciprocates, avoids leading to the tensile force of the two to change because of first drive belt and second drive belt translation rate are different, and then influences the stability and the security of lifting machine operation.
In an alternative form, the first and second drive wheels are of equal diameter and the first and second sync wheels are of equal diameter; the driving assembly further comprises a first driven wheel, the first driven wheel and the second driving wheel are arranged on one side, facing the ascending direction of the lifting assembly, of the first driving wheel, the first driven wheel and the second driving wheel are arranged in the circumferential direction of the first driving wheel, the second driving belt is sleeved on the second driving wheel and the first driven wheel, and therefore the second driving belt is located on the outer side of the first driving belt and has a gap with the first driving belt. The diameters of the first driving wheel and the second driving wheel are set to be equal, the diameters of the first synchronizing wheel and the second synchronizing wheel are set to be equal, and on the basis that the linear speeds of the first driving wheel and the second driving wheel are equal, the whole structure of the driving assembly is more compact, and the belt wheels are convenient to install and arrange. Through arranging second drive wheel and first driven wheel and setting up in one side of first drive wheel orientation rising direction, cup joint the second drive belt in second drive wheel and first from the driving wheel simultaneously for the second drive belt is located the outside of first drive belt along the radial of first drive wheel, and has the interval between second drive belt and the second drive belt, guarantees not to take place to interfere between first drive belt and the second drive belt, guarantees that lifting unit is steady reliable when reciprocating.
In an alternative form, the first driven wheel and the second driven wheel are arranged in a direction perpendicular to the ascending direction. Through arranging the second drive wheel and the first driven wheel along the direction vertical to the ascending direction, the projections of the first drive belt and the second drive belt are mutually overlapped along the radial direction of the first drive wheel, and then when the first drive belt and the second drive belt drive the lifting assembly, the lifting assembly is evenly stressed and stably runs.
In an optional mode, the driving assembly further includes a rotating shaft, a first bearing seat, a second bearing and a second bearing seat, the first bearing is disposed on the first bearing seat, the second bearing is disposed on the second bearing seat, and the first bearing seat and the second bearing seat are used for being connected with the stand column; the first driving wheel and the first synchronizing wheel are connected to the first bearing through an output shaft of the driving part, and the second driving wheel and the second synchronizing wheel are connected to the second bearing through rotating shafts. Through connecting first drive wheel and first synchronizing wheel on first bearing frame, connect second drive wheel and second synchronizing wheel on the second bearing frame, make drive assembly form two modules to only need install first bearing frame and second bearing frame respectively fixedly, alright in order to realize drive assembly's assembly, the simple operation, the later stage of being convenient for is to drive assembly's detection and maintenance.
According to another aspect of the utility model, a lifting machine is provided, include: a base, a column, a lifting assembly and a drive assembly as in any one of the above; the stand sets up on the base, and drive assembly sets up on the stand, and lifting unit connects in drive assembly, and drive assembly is used for driving lifting unit for stand elevating movement.
In the application provides an among the lifting machine, drive first drive belt and second drive belt respectively through first drive wheel and second drive wheel and remove, realize the drive of the two drive belts to lifting unit, and then reduce the atress of solitary drive belt, increase of service life, and through being connected with coaxial first synchronizing wheel of first drive wheel and the coaxial second synchronizing wheel of second drive wheel, realize the transmission of first drive wheel to second drive wheel, make through a driving piece alright with the rotation of first drive wheel of simultaneous drive and second drive wheel, guarantee first drive wheel and the synchronous rotation of second drive wheel, and when one in first drive belt and second drive belt breaks, still can drive lifting unit through another and continue the operation of going up and down, guarantee lifting machine operating stability, improve equipment's security performance simultaneously.
In an alternative mode, a mounting plate is arranged at one end of the upright post, which is far away from the base, and the second driving wheel is arranged on the mounting plate; the stand is provided with a mounting opening at the position adjacent to the mounting plate, and the first driving wheel is arranged in the mounting opening and connected with the stand. Through set up the mounting panel at the stand top, set up the installing port with the mounting panel department of adjoining on the stand, realize first drive wheel and the convenient installation of second drive wheel on the stand among the drive assembly.
In an alternative mode, the lifting assembly comprises a connecting assembly and a lifting platform, and the lifting platform is connected to the first transmission belt and the second transmission belt through the connecting assembly; the connecting assembly comprises a connecting plate, a first tensioning mechanism and a second tensioning mechanism, the connecting plate is fixedly connected with the lifting platform, and the first tensioning mechanism and the second tensioning mechanism are arranged on the connecting plate; the first tensioning mechanism is connected with the first transmission belt and is used for connecting the first transmission belt to the connecting plate and adjusting the tensioning force of the first transmission belt; the second tensioning mechanism is connected with the second transmission belt and is used for connecting the second transmission belt to the connecting plate and adjusting the tensioning force of the second transmission belt. The connecting plate a is connected with the first transmission belt through the first tensioning mechanism and connected with the second transmission belt through the second tensioning mechanism, so that after the lifting platform is fixed on the first transmission belt and the second transmission belt, the tensioning forces of the first transmission belt and the second transmission belt can be respectively adjusted by the first tensioning mechanism and the second tensioning mechanism, the tensioning forces of the first transmission belt and the second transmission belt are basically the same, and the moving stability of the lifting platform is ensured.
In an optional mode, a second driven wheel is arranged at one end, facing the base, of the stand column, and the first transmission belt is sleeved outside the first driving wheel and the second driven wheel. Through cup jointing first driving belt outside first drive wheel and second follow driving wheel for first driving belt is straightened by first drive wheel and second follow driving wheel tensioning, and first drive wheel can drive first driving belt smoothly and remove, and first driving belt and then drive the elevating platform and reciprocate.
In an alternative mode, the first clamping mechanism comprises a first clamping block and a second clamping block, the first clamping block and the second clamping block are arranged on the connecting plate in the moving direction of the first transmission belt, and the first clamping block and the second clamping block are clamped and fixed on the first transmission belt; the second clamping block is fixed on the connecting plate in a position variable manner along the moving direction of the first transmission belt, so that when the tension of the first transmission belt needs to be adjusted, the adjustment is carried out through the movement of the second clamping block relative to the connecting plate; when the tension of the first drive belt does not need to be adjusted, the second clamping block is fixed to the connecting plate. The first clamping blocks and the second clamping blocks are arranged on the connecting component along the moving direction of the first driving belt, and the second clamping blocks are fixed on the connecting plate a in a position-variable mode, so that the distance between the first clamping blocks and the second clamping blocks can be adjusted by adjusting the positions of the second clamping blocks, and the tension of the first driving belt can be adjusted.
In an alternative mode, the first tensioning mechanism further comprises a first adjusting piece, the first adjusting piece is connected between the first clamping block and the second clamping block, and in some alternative modes, the first adjusting piece clamps and fixes the first clamping block and the second clamping block. The first adjusting piece is used for adjusting the distance between the first clamping block and the second clamping block so as to adjust the tension of the first transmission belt. The first clamping block and the second clamping block are clamped and fixed on the first transmission belt, the second clamping block is connected to the connecting plate a in a sliding mode, the distance between the first clamping block and the second clamping block is adjusted through the first adjusting piece, and therefore the tension of the first transmission belt can be adjusted conveniently.
In an alternative form, the second tensioning mechanism comprises a third clamping block which is clamped and fixed to the second drive belt and is fixed to the connecting plate in a positionally variable manner in the direction of movement of the second drive belt, so that the third clamping block adjusts the tensioning force of the second drive belt when it is moved relative to the connecting plate. By clamping the third clamping block to the second drive belt and connecting it in a position-adjustable manner in the direction of movement of the second drive belt to the connecting assembly, a rapid adjustment of the tension of the second drive belt can be achieved by moving the third clamping block.
In an alternative, the second tensioning mechanism further comprises a second adjusting member connected between the third clamping block and the connecting plate, and in some alternatives, the second adjusting member clamps the third clamping block to the connecting plate. The second adjusting piece is used for adjusting the position of the third clamping block on the connecting plate so as to adjust the tension of the second transmission belt. Through being fixed in the second drive belt with the third clamp piece centre gripping to connect the third clamp piece on coupling assembling through second regulating part position adjustablely, make can be through adjusting the second regulating part, in order to realize the convenient regulation to second drive belt tensile force size.
In an alternative form, the lift platform is movably connected to the column by a connection assembly. The elevating platform sets up on the connecting plate to through coupling assembling swing joint in stand, can guarantee the straightness that hangs down of elevating platform moving direction, ensure the reliability of production operation.
In an optional mode, a plurality of groups of mounting parts are arranged on the connecting plate along the moving direction of the first transmission belt, each group of mounting parts comprises a plurality of mounting structures arranged along the moving direction of the first transmission belt, and the lifting platform is detachably connected to the connecting plate through the mounting parts; wherein the spacing of adjacent mounting structures is less than or equal to the spacing of adjacent mounting portions. Through set up multiunit installation department along the moving direction of first drive belt on connecting plate a for can fix the multilayer elevating platform on connecting plate a, with promotion operating efficiency, and every group installation department includes a plurality of mounting structure along the setting of first drive belt moving direction, make the height-adjustable festival of elevating platform on every installation department, with the bearing of the not co-altitude goods of compatibility.
In an optional mode, the lifting assembly further includes a weight block, the weight block is fixedly connected to the first transmission belt and the second transmission belt and movably connected to the column, wherein the weight block and the lifting platform are respectively located on two opposite sides of the column. Set up the balancing weight through sliding on the stand to be connected balancing weight and first drive belt and second drive belt, guarantee that the atress of first drive belt and second drive belt both sides is unlikely to differ too greatly, and then ensure first drive belt and the driven stability of second drive belt.
In an alternative form, the post is of unitary construction. The stand production precision of a body structure is higher, and then can guarantee lifting unit's operational environment, wearing and tearing and vibration when reducing lifting unit and stand relative slip, and then the noise that the reduction equipment operation produced.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the contents of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following description will particularly refer to specific embodiments of the present invention.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a driving assembly according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an application scenario of the driving assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;
fig. 4 is a schematic structural diagram of a hoisting machine according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a column top driving assembly in a hoisting machine according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a connection portion between a driving assembly and an upright post in the elevator provided by the embodiment of the present invention;
fig. 7 is a schematic structural view of a joint between a lifting assembly and an upright post in the elevator according to the embodiment of the present invention;
fig. 8 is a schematic structural view of a joint between a lifting assembly and a transmission belt in the elevator according to the embodiment of the present invention;
fig. 9 is a schematic structural view of another view angle of the connection between the lifting assembly and the transmission belt in the elevator according to the embodiment of the present invention;
fig. 10 is a schematic structural view of a further viewing angle at the joint of the lifting assembly and the transmission belt in the elevator according to the embodiment of the present invention.
The reference numbers in the detailed description are as follows:
140. a drive assembly; 141. a drive member; 1411. a reduction gearbox; 1412. an output shaft; 142. a first drive wheel; 143. a second drive wheel; 1431. a first driven wheel; 144. a first drive belt; 1441. a second driven wheel; 145. a second belt; 146. a first synchronizing wheel; 147. a second synchronizing wheel; 148. a synchronous belt; 149. a tension wheel; 1491. a slide fastener; 1401. a rotating shaft; 1402. a first bearing; 1403. a first bearing housing; 1404. a second bearing; 1405. a second bearing housing;
100. a hoist; 110. a base; 120. a column; 1201. a chute; 121. mounting a plate; 122. an installation port; 123. a slide rail; 130. a lifting assembly; 131. a lifting platform; 132. a balancing weight; 133. a connecting assembly; 133a, a connecting plate; 133b, an adjustment port; 1331. a first tensioning mechanism; 13311. a first clamping block; 13312. a second clamping block; 13313. a first adjustment member; 1332. a second tensioning mechanism; 13321. a third clamping block; 13322. a second adjusting member; 1333. a roller; 1334. a first chute; 1335. a second chute; 1336. an installation part; 13361. and (7) mounting the structure.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
The lifting transmission system of the elevator generally rotates through the driving belt wheel to enable the driving belt to move, so that the driving belt can freely fall off when being broken, and therefore great potential safety hazards exist in production operation of the elevator.
In order to eliminate the hidden trouble, some hoists are also connected with a steel wire rope, so that when the transmission belt is broken, the steel wire rope can be hung and cannot fall. However, the steel cable does not have a driving function, so when the transmission belt is broken, the elevator still cannot work normally, and needs to be maintained, thereby reducing the working efficiency.
Based on this, the utility model provides a drive assembly, this drive assembly can be applied to the lifting machine, and the lifting machine includes the base, sets up stand on the base and can be for stand elevating movement's lifting unit. The drive assembly drives the lifting assembly to carry out lifting operation through setting up two sets of drive wheels and two drive belts simultaneously, reduces the load on the bearing that supports the drive wheel, guarantees the stability of lifting assembly when moving, increase of service life. Carry out the transmission through synchronizing wheel and hold-in range interconnect between two sets of drive wheels for only need a driving piece alright drive two drive wheels simultaneously, effectively save the cost, and when one of them drive belt breaking occur, the driving piece can normally drive another drive belt and remove, guarantee that lifting unit can normal operating, prevent to take place the risk of falling.
Specifically, please refer to fig. 1 to 3, fig. 1 shows a structure of a driving assembly provided by an embodiment of the present invention, fig. 2 shows a structure of an application scenario of the driving assembly provided by an embodiment of the present invention, and fig. 3 shows a structure of another view angle of fig. 2. As shown in the drawings, the driving assembly 140 may be applied to the hoist 100 shown in fig. 4, and the hoist 100 includes a base 110, a column 120 disposed on the base 110, and a lifting assembly 130 movable up and down with respect to the column 120.
The drive assembly 140 includes a drive member 141, a first drive wheel 142, a second drive wheel 143, a first drive belt 144, a second drive belt 145, a first synchronizing wheel 146, and a second synchronizing wheel 147. The output shaft of the driving member 141 is connected to the first driving wheel 142 and the first synchronizing wheel 146 to drive the first driving wheel 142 and the first synchronizing wheel 146 to rotate synchronously. The second synchronizing wheel 147 is in transmission connection with the first synchronizing wheel 146, so that the first synchronizing wheel 146 drives the second synchronizing wheel 147 to rotate. The second driving wheel 143 and the second synchronizing wheel 147 are coaxially disposed, and the second synchronizing wheel 147 drives the second driving wheel 143 to rotate, so that the first driving wheel 142 and the second driving wheel 143 rotate synchronously. The first driving wheel 142 is used for being connected with the lifting assembly 130 through a first transmission belt 144, and the second driving wheel 143 is used for being connected with the lifting assembly through a second transmission belt 145, so that when the first driving wheel 142 and the second driving wheel 143 rotate synchronously, the lifting assembly 130 is driven to move along the lifting direction through the first transmission belt 144 and the second transmission belt 145 respectively.
Note that the lifting direction may be the z-axis direction shown in fig. 1.
As shown in fig. 1, the driving member 141 can be a motor, and the output shaft of the driving member 141 and the first driving wheel 142 and the first synchronizing wheel 146 can be connected through a reduction box 1411, so as to achieve the purpose of speed reduction and force increase, and ensure that the driving member 141 can stably and reliably drive the first driving wheel 142 to rotate for lifting operation.
With continued reference to fig. 1, in some embodiments, the first synchronizing wheel 146 and the second synchronizing wheel 147 may be connected by a timing belt 148 to allow transmission from the first synchronizing wheel 146 to the second synchronizing wheel 147. In other embodiments, the first synchronizing wheel 146 and the second synchronizing wheel 147 may also be both gears, and the first synchronizing wheel 146 and the second synchronizing wheel 147 are in mesh transmission through an intermediate gear, so as to ensure that the rotation directions of the first synchronizing wheel 146 and the second synchronizing wheel 147 are the same.
The second synchronizing wheel 147 is coaxially disposed with the second driving wheel 143, such that when the first synchronizing wheel 146 drives the second synchronizing wheel 147 to rotate synchronously, the second driving wheel 143 rotates with the second synchronizing wheel 147, and thus when the driving member 141 drives the first driving wheel 142 and the first synchronizing wheel 146 to rotate, the second synchronizing wheel 147 and the second driving wheel 143 also rotate along with the first synchronizing wheel 147, such that the first driving belt 144 and the second driving belt 145 move synchronously and drive the lifting assembly to move up and down together.
In the drive assembly 140 that this application provided, drive first drive belt 144 and second drive belt 145 through first drive wheel 142 and second drive wheel 143 respectively and remove, realize the two drive belt drives to lifting unit 130, and then reduce the atress of list drive belt, increase of service life. In addition, the driving assembly 140 of the present application realizes transmission from the first driving wheel 142 to the second driving wheel 143 by connecting the first synchronizing wheel 146 coaxial with the first driving wheel 142 and the second synchronizing wheel 147 coaxial with the second driving wheel 143, so that the first driving wheel 142 and the second driving wheel 143 can be driven to rotate simultaneously by one driving member 141, and synchronous rotation of the first driving wheel 142 and the second driving wheel 143 is ensured. In addition, when one of the first transmission belt 144 and the second transmission belt 145 is broken, the other one can still drive the lifting assembly 130 to continue lifting operation, so that the operation safety is improved, and the risk of falling of the lifting assembly is prevented.
In order to ensure the smoothness of the transmission between the first synchronizing wheel 146 and the second synchronizing wheel 147, the present application further provides an implementation manner, please refer to fig. 4 and 5 specifically, a structure of the elevator with a lifting assembly provided by the embodiment of the present invention is shown in fig. 4, and a structure at the top of fig. 4 is shown in fig. 5. As shown in the figure, the first timing pulley 146 and the second timing pulley 147 are connected by a timing belt 148, and one side of the timing belt 148 is provided with a tension pulley 149, and the tension pulley 149 is used for abutting against the timing belt 148 to adjust the tension of the timing belt 148.
Specifically, as shown in fig. 5, the upright 120 of the hoist 100 may be provided with a sliding groove 1201 at an end facing away from the base 110 thereof, the tension wheel 149 is slidably connected to the sliding groove 1201 through a rotating shaft and a slide fastener 1491 (which may be a bolt, for example), and the tension wheel 149 may be fixed at any position on the sliding groove 1201 by tightening the slide fastener 1491. The tension of the timing belt 148 can be adjusted as the tension pulley 149 moves toward or away from the timing belt 148. It is understood that in other embodiments, a mounting seat may be separately provided to fix the tension wheel 149.
The tension wheel 149 is arranged on one side of the synchronous belt 148, the tension wheel 149 is abutted against the synchronous belt 148, the tension force of the synchronous belt 148 is adjusted, and therefore the first synchronous wheel 146 and the second synchronous wheel 147 are ensured to be stably driven and not easy to slip.
Referring again to fig. 1 and 2, in some embodiments, the axes of the first driving wheel 142 and the second driving wheel 143 are disposed in parallel, and the first driving wheel 142 is disposed between the second driving wheel 143 and the base 110, such that the first driving belt 144 is parallel to the second driving belt 145 and the first driving belt 144 is located inside the second driving belt 145.
Specifically, in order to prevent power loss due to friction occurring between the first driving belt 144 and the second driving belt 145 due to contact, the second driving wheel 143 located at the outer side may be provided in plurality, or the diameter of the second driving wheel 143 may be set larger than that of the first driving wheel 142 to ensure the interval between the first driving belt 144 and the second driving belt 145.
Through the axis parallel arrangement with first drive wheel 142 and second drive wheel 143, can guarantee to parallel between first drive belt 144 and the second drive belt 145, and then guarantee the stability when first drive belt 144 and second drive belt 145 drive lift assembly 130 jointly and reciprocate, avoid taking place the abnormal sound. The first driving wheel 142 is disposed between the second driving wheel 143 and the base 110 to ensure that the first driving belt 144 is located inside the second driving belt 145, and along the y-axis direction in fig. 1, the projections of the first driving belt 144 and the second driving belt 145 are overlapped, so as to ensure that the force of the first driving belt 144 and the second driving belt 145 applied to the lifting assembly 130 is distributed uniformly, and the lifting is stable.
In order to ensure the consistency of the moving speed of the first transmission belt 144 and the second transmission belt 145, the present application further proposes an embodiment, specifically, the linear speed of the first synchronizing wheel 146 and the linear speed of the second synchronizing wheel 147 are the same, and the ratio of the radius between the first driving wheel 142 and the first synchronizing wheel 146 is equal to the ratio of the radius between the second driving wheel 143 and the second synchronizing wheel 147, so that the linear speed of the first driving wheel 142 and the second driving wheel 143 is equal when the driving member 141 operates.
It will be appreciated that since the first drive wheel 142 and the first synchronizing wheel 146 are coaxial and the second drive wheel 143 and the second synchronizing wheel 147 are coaxial, the ratio of the radii between the first drive wheel 142 and the first synchronizing wheel 146 is equal to the ratio of the linear velocities thereof and the ratio of the radii between the second drive wheel 143 and the second synchronizing wheel 147 is equal to the ratio of the linear velocities thereof. The linear velocities of the first and second synchronous wheels 146 and 147 are equal to each other, whether they are driven by the synchronous belt 148 or by the intermediate gear.
If the radius of the first driving wheel 142 is R 1 The first synchronizing wheel 146 has a radius R 2 The second synchronizing wheel 147 has a radius of R 3 And the radius of the second driving wheel 143 is R 4 Assuming that the elevator 100 is operating, the linear velocity of the first drive wheel 142 is v 1 Linear velocity v of the first synchronizing wheel 146 2 Linear velocity v of the second synchronizing wheel 147 3 Linear velocity v of second drive wheel 143 4 Then, there are:
v 2 ＝v 3 (1)
Figure BDA0003806094470000111
from formula (2):
Figure BDA0003806094470000112
by combining the above formulae (1) and (3), v can be obtained 1 ＝v 4 。
By ensuring that the linear speeds of the first driving wheel 142 and the second driving wheel 143 are equal when the driving element 141 drives, and further ensuring that the moving speeds of the first transmission belt 144 and the second transmission belt 145 are equal, it is ensured that the tensioning forces on the first transmission belt 144 and the second transmission belt 145 can be kept unchanged when the lifting assembly 130 moves up and down, and it is avoided that the tensioning forces on the first transmission belt 144 and the second transmission belt 145 are changed due to the difference of the moving speeds of the first transmission belt 144 and the second transmission belt 145, and further the operation stability and safety of the elevator 100 are affected.
In order to optimize the structure of the driving assembly, the present application further proposes an embodiment, and specifically refers to fig. 1 again, as shown in the figure, the first driving wheel 142 and the second driving wheel 143 have the same diameter, and the first synchronizing wheel 146 and the second synchronizing wheel 147 have the same diameter. The driving assembly 140 further includes a first driven wheel 1431, the first driven wheel 1431 and the second driving wheel 143 are both disposed on the first driving wheel 142 facing the ascending direction (the direction of the z axis in fig. 4) of the lifting assembly 130, the first driven wheel 1431 and the second driving wheel 143 are arranged along the circumferential direction of the first driving wheel 142, and the second driving belt 145 is simultaneously sleeved on the second driving wheel 143 and the first driven wheel 1431, so that the second driving belt 145 is located on the outer side of the first driving belt 144 and has a gap with the first driving belt 144. In some embodiments, there may be a plurality of first driven wheels 1431, and the plurality of first driven wheels 1431 and the second driven wheel 143 are arranged along the circumferential direction of the first driving wheel 142. The diameter of the first driven wheel 1431 may be smaller than the diameter of the second driving wheel 143. Of course, the diameter of the first driven wheel 1431 may be equal to or greater than the diameter of the second driven wheel, which is not limited in this application.
In the embodiment shown in fig. 1 and 4, the diameters of the first driving wheel 142, the second driving wheel 143, the first driven wheel 1431, the first synchronous wheel 146 and the second synchronous wheel 147 are all the same, that is, the linear velocities of the driving element 141 and the first driven wheel are all equal when the driving element is working, so that the synchronous movement of the first transmission belt 144 and the second transmission belt 145 is ensured, and the structure is compact and the space occupancy rate is low. It is understood that in other embodiments, the diameters of the first driving wheel 142 and the second driving wheel 143 may be set to be equal, the diameters of the first synchronizing wheel 146 and the second synchronizing wheel 147 may be set to be equal, and the diameters of the first driving wheel 142 and the first synchronizing wheel 146 may not be equal, which may also ensure the linear velocities of the first driving wheel 142 and the second driving wheel 143 to be the same.
Further, with continued reference to fig. 1, 3 and 4, in a preferred mode, the second driving wheel 143 and the first driven wheel 1431 are arranged in a direction perpendicular to the lifting direction (the direction indicated by the y-axis in the drawing). By arranging the second driving wheel 143 and the first driven wheel 1431 in a direction perpendicular to the ascending direction, the projections of the first transmission belt 144 and the second transmission belt 145 are overlapped with each other along the radial direction of the first driving wheel 142, so as to ensure that the lifting assembly 130 is stressed uniformly and operates stably when the lifting assembly is driven by the first transmission belt 144 and the second transmission belt 145.
As shown in fig. 1 and 2, the second driving wheel 143 and the first driven wheel 1431 are disposed right above the first driving wheel 142 along the direction of the z-axis in the drawing, after the second driving belt 145 is sleeved on the second driving wheel 143 and the first driven wheel 1431, the second driving belt 145 is located outside the first driving belt 144, and a gap is provided between the second driving belt 145 and the first driving belt 144 to ensure that the first driving belt 144 and the second driving belt 145 do not interfere with each other during operation. It is understood that in other embodiments, the number of the first driven wheels 1431 may be multiple, and the number is not limited herein, and the number may also ensure the smoothness of the operation of the two transmission belts.
It should be noted that the second driving wheel 143 is not directly connected to the first driven wheel 1431, but the second driving wheel 143 drives the second driving belt 145 to move, and the second driving belt 145 drives the first driven wheel 1431 to rotate.
By setting the diameters of the first driving wheel 142 and the second driving wheel 143 to be equal and the diameters of the first synchronizing wheel 146 and the second synchronizing wheel 147 to be equal, the overall structure of the driving assembly 140 is made more compact and the installation and arrangement of the pulleys are facilitated on the basis of ensuring that the linear velocities of the first driving wheel 142 and the second driving wheel 143 are equal. The second driving wheel 143 and the first driven wheel 1431 are arranged on one side of the first driving wheel 142 facing the ascending direction, and the second driving belt 145 is simultaneously sleeved on the second driving wheel 143 and the first driven wheel 1431, so that the second driving belt 145 is located on the outer side of the first driving belt 144 along the radial direction of the first driving wheel 142, and a gap is formed between the second driving belt 145 and the second driving belt 145, thereby ensuring that the first driving belt 144 and the second driving belt 145 are not interfered with each other, and ensuring that the lifting assembly 130 is stable and reliable when moving up and down.
To facilitate mounting of drive assembly 140 on mast 120, the present application further contemplates an embodiment, and with particular reference again to fig. 1. As shown in the figures, drive assembly 140 further includes a shaft 1401, a first bearing 1402, a first bearing housing 1403, a second bearing 1404, and a second bearing housing 1405. First bearing 1402 is disposed on first bearing seat 1403, second bearing 1404 is disposed on second bearing seat 1405, and first bearing seat 1403 and second bearing seat 1405 are used for connecting with shaft 120. The first drive wheel 142 and the first synchronizing wheel 146 are connected to the first bearing 1402 through an output shaft 1412 of the drive member 141. The second drive wheel 143 and the second synchronizing wheel 147 are connected to a second bearing 1404 through a rotating shaft 1401.
Through connecting first drive wheel 142 and first synchronizing wheel 146 on first bearing frame 1403, connect second drive wheel 143 and second synchronizing wheel 147 on second bearing frame 1405, make drive assembly 140 form two modules to only need install respectively first bearing frame 1403 and second bearing frame 1405 fixedly, alright in order to realize drive assembly 140's assembly, the simple operation, the later stage of being convenient for is to drive assembly 140's detection and maintenance.
According to another aspect of the present invention, there is also provided a hoisting machine, referring to fig. 4, as shown in the drawing, the hoisting machine 100 includes a base 110, a column 120, a lifting assembly 130 and a driving assembly 140 in any of the embodiments. The upright column 120 is disposed on the base 110, the driving assembly 140 is disposed on the upright column 120, the lifting assembly 130 is connected to the driving assembly 140, and the driving assembly 140 is used for driving the lifting assembly 130 to move up and down relative to the upright column 120.
Specifically, a slide rail may be disposed on the upright post 120 along the height direction (the direction indicated by the z-axis in fig. 4), and the lifting assembly 130 is slidably connected to the slide rail, so that the lifting assembly 130 can move up and down along the slide rail to perform the lifting operation.
Referring to fig. 2 again, in some embodiments, a second driven wheel 1441 may be disposed at an end of the upright 120 facing the base 110, and the first transmission belt 144 is sleeved outside the first driving wheel 142 and the second driven wheel 1441. By sleeving the first transmission belt 144 outside the first driving wheel 142 and the second driven wheel 1441, the first transmission belt 144 is tensioned and straightened by the first driving wheel 142 and the second driven wheel 1441, the first driving wheel 142 can smoothly drive the first transmission belt 144 to move, and the first transmission belt 144 further drives the lifting platform 131 to move up and down.
Referring again to fig. 2 and 3, in the embodiment shown in the figures, the lifting assembly 130 may include a lifting platform 131 and a weight 132 movably connected to both sides of the column 120. The lifting platform 131 and the weight block 132 may be connected to the slide rail on the upright 120 by rolling via a roller, and it can be understood that the lifting platform may also be connected to the slide rail by sliding via a slider or the like, which is not limited in this application. The lifting platform 131 is connected with the first transmission belt 144 and the second transmission belt 145, and is used for carrying goods and driving the goods to lift. The weight 132 is fixedly connected to the first belt 144 and the second belt 145. By arranging the balancing weight 132 on the upright post 120 in a sliding manner and connecting the balancing weight 132 with the first transmission belt 144 and the second transmission belt 145, the two sides of the first transmission belt 144 and the second transmission belt 145 are not stressed by too much difference, and the transmission stability of the first transmission belt 144 and the second transmission belt 145 is ensured.
First drive belt 144 may be coupled between first drive pulley 142 and a second driven pulley 1441 at the bottom of column 120. The second belt 145 may be in a shape of a strip and hung on the second driving wheel 143, and both ends of the second belt 145 are connected to the lifting platform 131 and the weight block 132, respectively. When the driving member 141 drives the first driving wheel 142 and the second driving wheel 143 to rotate synchronously, the first transmission belt 144 on the first driving wheel 142 and the second transmission belt 145 on the second driving wheel 143 move synchronously, and the first transmission belt 144 and the second transmission belt 145 drive the lifting platform 131 and the counterweight 132 to move up and down together. The first transmission belt 144 and the second transmission belt 145 jointly drive the lifting assembly 130 to move, so that the stress on a single transmission belt can be reduced, the frequency of transmission belt replacement is reduced, and the service life is prolonged.
It is understood that in other embodiments, if the weight of the platform 131 is light, the lifting assembly 130 may not have the weight block 132, but a plurality of second driven wheels 1441 may be provided at the bottom of the upright column 120, the first transmission belt 144 may be connected between the first driving wheel 142 and the second driven wheels 1441, the second transmission belt 145 may be connected between the second driving wheel 143 and the other second driven wheels 1441, the first transmission belt 144 and the second transmission belt 145 may be looped directly over the wheels at both ends, or may be in a strip shape, and after being looped over the wheels at both ends, both free ends are fixedly connected to the lifting assembly 130, so that the first transmission belt 144 and the second transmission belt 145 can drive the platform 131 to perform lifting operation when moving.
In some embodiments, the first transmission belt 144 and the second transmission belt 145 may be both in the shape of a bar, and both ends of the first transmission belt are fixedly connected to the lifting platform 131 and the weight block 132 respectively, so as to drive the lifting platform 131 and the weight block 132 to move up and down.
In the elevator 100 provided by the application, the first driving belt 144 and the second driving belt 145 are respectively driven by the first driving wheel 142 and the second driving wheel 143 to move, so that double-belt driving of the lifting assembly 130 is realized, stress of a single driving belt is reduced, the service life is prolonged, the first synchronizing wheel 146 coaxial with the first driving wheel 142 and the second synchronizing wheel 147 coaxial with the second driving wheel 143 are connected, transmission from the first driving wheel 142 to the second driving wheel 143 is realized, so that the first driving wheel 142 and the second driving wheel 143 can be simultaneously driven to rotate by one driving piece 141, synchronous rotation of the first driving wheel 142 and the second driving wheel 143 is ensured, when one of the first driving belt 144 and the second driving belt 145 is broken, the lifting assembly 130 can still be driven by the other one driving piece to continue lifting operation, the stability of the operation of the elevator 100 is ensured, and the safety performance of equipment is improved.
Referring to fig. 6, a structure of a joint between a driving assembly and a column in a hoisting machine according to an embodiment of the present invention is shown. As shown in the figures, a mounting plate 121 is disposed at an end of the upright column 120 away from the base 110, a second driving wheel 143 is disposed on the mounting plate 121, a mounting opening 122 is disposed at a position of the upright column 120 adjacent to the mounting plate 121, and a first driving wheel 142 is disposed in the mounting opening 122 and fixedly connected to the upright column 120.
Specifically, for the driving assembly 140 comprising the first bearing seat 1403 and the second bearing seat 1405, the second driving wheel 143 can be fixed on the mounting plate 121 through the second bearing seat 1405, and the first driving wheel 142 can be disposed in the mounting opening 122 through the first bearing seat 1403 and fixedly connected to the upright 120.
Specifically, as shown in fig. 6, the driving member 141 may also be mounted on the first bearing seat 1403, and when the driving assembly 140 is mounted on the mast 120, the first bearing seat 1403 with the driving member 141, the first driving wheel 142 and the first synchronizing wheel 146 may be first inserted into the mounting opening 122, then the first bearing seat 1403 may be fixed on the mast 120 by a threaded fastener, then the second bearing seat 1405 with the second driving wheel 143 and the second synchronizing wheel 147 is mounted on the top of the mounting plate 121, finally the timing belt 148 is sleeved on the first synchronizing wheel 146 and the second synchronizing wheel 147, the first driving belt 144 is sleeved on the first driving wheel 142, the second driving belt 145 is sleeved on the second driving wheel 143, and the mounting of the driving assembly 140 on the mast 120 is completed, which is convenient and fast.
By providing mounting plate 121 at the top of mast 120 and mounting opening 122 in mast 120 adjacent mounting plate 121, ease of mounting first drive wheel 142 and second drive wheel 143 of drive assembly 140 to mast 120 is achieved.
In order to facilitate adjustment of the tensioning force of the first transmission belt 144 and the second transmission belt 145, the present application further provides an implementation manner, please refer to fig. 7 and 8 specifically, fig. 7 shows a structure of a connection between the lifting assembly and the stand column in the elevator provided by the embodiment of the present invention, and fig. 8 shows a structure of a connection between the lifting assembly and the first transmission belt and the second transmission belt in the elevator provided by the embodiment of the present invention. As shown in the drawing, the elevating assembly 130 includes a connecting assembly 133 and an elevating table 131, and the elevating table 131 is connected to a first driving belt 144 and a second driving belt 145 through the connecting assembly 133. The connecting assembly 133 includes a connecting plate 133a, a first tensioning mechanism 1331, and a second tensioning mechanism 1332. The connection plate 133a is connected to the elevating table 131, and a first tensioning mechanism 1331 and a second tensioning mechanism 1332 are provided on the connection plate 133a. The first tensioning mechanism 1331 is connected to the first belt 144, and serves to connect the first belt 144 to the connection plate 133a and adjust the tension of the first belt 144. A second tensioning mechanism 1332 is connected to the second belt 145 for connecting the second belt 145 to the connecting plate 133a and adjusting the tensioning force of the second belt 145.
The connection plate 133a is connected to the first transmission belt 144 through a first tensioning mechanism 1331 and connected to the second transmission belt 145 through a second tensioning mechanism 1332, so that after the lifting platform 131 is fixed to the first transmission belt 144 and the second transmission belt 145, the first tensioning mechanism 1331 and the second tensioning mechanism 1332 can respectively adjust the tensioning force of the first transmission belt 144 and the second transmission belt 145, thereby ensuring that the tensioning force of the first transmission belt 144 and the second transmission belt 145 is substantially the same, and ensuring the stability of the movement of the lifting platform 131.
As to the structure of the first tensioning mechanism 1331, the present application further proposes an embodiment, specifically referring to fig. 3 and 8, as shown in the drawings, the first tensioning mechanism 1331 includes a first clamping block 13311 and a second clamping block 13312, the first clamping block 13311 and the second clamping block 13312 are arranged on the connecting component 133 along the moving direction (the direction of the z axis in fig. 8) of the first driving belt 144, and both the first clamping block 13311 and the second clamping block 13312 are clamped and fixed to the first driving belt 144. The second clamping block 13312 is positionally variably fixed to the connecting plate 133a in the moving direction of the first belt 144 such that adjustment is made by movement of the second clamping block 13312 relative to the connecting plate 133a when the tension of the first belt 144 is to be adjusted, and the second clamping block 13312 is fixed to the connecting plate 133a when the tension of the first belt 144 is not to be adjusted.
The first belt 144 may be in a ring shape as shown in fig. 3 and 8, and the first belt 144 may be tightened or loosened by clamping and fixing the first clamping block 13311 and the second clamping block 13312 to the first belt 144, so as to adjust the tension of the first belt 144 when the distance between the first clamping block 13311 and the second clamping block 13312 is adjusted. It is understood that in other embodiments, the first belt 144 may also be a strip, the first belt 144 is respectively sleeved outside the first driving wheel 142 and the second driven wheel 1441, and both ends of the first belt 144 are respectively clamped and fixed to the first clamping block 13311 and the second clamping block 13312, so that when the distance between the first clamping block 13311 and the second clamping block 13312 is adjusted, the first belt 144 can be tightened or loosened, and thus the tension of the first belt 144 can be adjusted.
By arranging the first clamping block 13311 and the second clamping block 13312 on the connecting assembly 133 in the moving direction of the first drive belt 144 and fixing the second clamping block 13312 to the connecting plate 133a in a position-variable manner, the distance between the first clamping block 13311 and the second clamping block 13312 can be adjusted by adjusting the position of the second clamping block 13312, and thus the tension of the first drive belt 144 can be adjusted.
Specifically, please continue to refer to fig. 8, and further refer to fig. 9 and 10, where fig. 9 and 10 respectively show structures of two other viewing angles at the connection between the lifting assembly and the first driving belt and the second driving belt in the elevator according to the embodiment of the present invention. As shown in the figures, the first tensioning mechanism 1331 further includes a first adjuster 13313, the first adjuster 13313 being connected between the first clamping block 13311 and the second clamping block 13312. In some embodiments, the first adjustment piece 13313 secures the first clamping block 13311 and the second clamping block 13312. The first adjuster 13313 is used to adjust the distance between the first clamping block 13311 and the second clamping block 13312 to adjust the tension of the first drive belt 144.
Specifically, as shown in fig. 9 and 10, a first sliding slot 1334 may be provided on the connecting plate 133a, and the second clamping block 13312 is connected to the connecting plate 133a through a connecting member. Wherein the connecting member is disposed in the first sliding slot 1334 and can slide in the first sliding slot 1334. The first adjusting member 13313 may be a screw and nut as shown in the drawings, and the connecting member of the second clamping block 13312 slides along the first sliding groove 1334 by rotating the nut, so that the distance between the first clamping block 13311 and the second clamping block 13312 is adjusted, and the tension of the first transmission belt 144 is adjusted.
The first clamping block 13311 and the second clamping block 13312 are clamped and fixed on the first drive belt 144, the second clamping block 13312 is connected to the connecting plate 133a in a sliding mode, and the distance between the first clamping block 13311 and the second clamping block 13312 is adjusted through the first adjusting piece 13313, so that the tension of the first drive belt 144 can be adjusted conveniently.
Further, with continued reference to fig. 10, in some embodiments, the connecting plate 133a may be provided with an adjustment opening 133b to allow a technician to quickly adjust the first adjustment piece 13313 by hand or tool from the front side of the connecting plate 133a.
With regard to the structure of the second tensioning mechanism 1332, the present application further proposes an embodiment, and with continued reference to fig. 8 to 10, as shown in the drawings, the second tensioning mechanism 1332 includes a third clamping block 13321, the third clamping block 13321 is clamped and fixed to the second transmission belt 145, and the third clamping block 13321 is connected to the connecting assembly 133 in a position adjustable along the moving direction (the direction indicated by the z-axis in fig. 8) of the second transmission belt 145, so that the tension of the second transmission belt 145 is adjusted when the third clamping block 13321 moves relative to the connecting assembly 133.
By clamping the third clamping block 13321 to the second drive belt 145 and connecting it to the connecting assembly 133 in a position-adjustable manner in the direction of movement of the second drive belt 145, a rapid adjustment of the tension of the second drive belt 145 can be achieved by moving the third clamping block 13321.
Further, with continued reference to fig. 8-10, in some embodiments, second tensioning mechanism 1332 further includes a second adjustment piece 13322, second adjustment piece 13322 being connected between third clamping block 13321 and connecting plate 133a. In some embodiments, the second adjuster 13322 secures the third clamping block 13321 to the connecting plate 133a. The second adjusting member 13322 is used to adjust the position of the third clamping block 13321 on the connecting plate 133a to adjust the tension of the second driving belt 145.
Specifically, as shown in fig. 9, the connecting plate 133a is provided with a second slide slot 1335, and the third clamping block 13321 is connected to the connecting plate 133a through a connecting member. The connection of the third clamping block 13321 is disposed within the second slide slot 1335 and is slidable within the second slide slot 1335. Adjustment of the tension of the second drive belt 145 is achieved by adjusting the second adjustment piece 13322 such that the third clamping block 13321 slides along the second slide slot 1335.
By clamping the third clamping block 13321 to the second transmission belt 145 and connecting the third clamping block 13321 to the connecting assembly 133 through the second adjusting member 13322 in a position-adjustable manner, the second adjusting member 13322 can be adjusted to realize convenient adjustment of the tension of the second transmission belt 145.
Referring to fig. 7, in some embodiments, the lifting platform 131 is movably connected to the column 120 by a connecting member 133.
Specifically, the upright post 120 may be provided with a slide rail 123, the connecting plate 133a may be provided with a roller 1333, and the connecting plate 133a is clamped on the slide rail 123 through the roller 1333 and is slidably connected with the slide rail 123 along the height direction, so as to achieve the up-and-down movement of the lifting table 131.
The lifting platform 131 is movably connected to the upright post 120 through the connecting component 133, so that the verticality of the moving direction of the lifting platform 131 can be ensured, and the reliability of production operation is ensured.
With continued reference to fig. 10, in some embodiments, a plurality of sets of mounting portions 1336 are disposed on the connecting plate 133a along the moving direction of the first transmission belt 144 (the direction of the z-axis in fig. 9), and each set of mounting portions 1336 includes a plurality of mounting structures 13361 disposed along the moving direction of the first transmission belt 144. The elevating platform 131 is detachably connected to the connection plate 133a by a mounting portion 1336, wherein the interval between adjacent mounting structures 13361 is less than or equal to the interval between adjacent mounting portions 1336.
Specifically, as shown in fig. 9 and 10, each mounting portion 1336 is used for mounting one lifting platform 131, and mounting structures 13361 at different positions on each mounting portion 1336 can fix the lifting platform 131 at different heights.
The mounting structure 13361 may be a mounting hole opened on the connecting plate 133a, and the lifting platform 131 may be fixed on different mounting holes by fasteners to adjust the mounting height of the lifting platform 131. It is understood that, in other embodiments, the mounting structure 13361 may also be a clamping structure, a welding structure, or the like, and the implementation manner of the mounting portion 1336 is not limited herein as long as it is ensured that the lifting platform 131 can be fixedly connected to the mounting structure 13361.
By providing a plurality of sets of mounting portions 1336 on the connecting plate 133a along the moving direction of the first conveyor belt 144 (the direction indicated by the z-axis in fig. 9), it is possible to fix the multiple layers of lifting tables 131 on the connecting plate 133a to improve the working efficiency, and each set of mounting portions 1336 includes a plurality of mounting structures 13361 provided along the moving direction of the first conveyor belt 144, so that the height of the lifting table 131 on each mounting portion 1336 is adjustable to accommodate the carrying of cargoes of different heights.
In some embodiments, upright 120 is a unitary structure.
Specifically, stand 120 can be through independent die sinking production shaping structure as an organic whole, and the stand 120 production precision of a body structure is higher, and then can guarantee the operational environment of lifting unit 130, wearing and tearing and vibration when reducing lifting unit 130 and stand 120 relative slip, and then the noise that the reduction equipment operation produced.
It is to be noted that unless otherwise specified, technical or scientific terms used in connection with the embodiments of the present invention should be given the ordinary meanings as understood by those skilled in the art to which the embodiments of the present invention belong.
In the description of the embodiments of the present invention, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for convenience of description of the embodiments and simplified description of the present invention, but not for indicating or suggesting that the device or element referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the embodiments of the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the embodiments of the present invention, unless explicitly specified or limited otherwise, the terms "mounted," "connected," and "fixed" are used in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, a first feature may be directly contacting a second feature or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely below the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included in the scope of the claims and description of the present invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (20)

1. A driving assembly is applied to a hoisting machine, and the hoisting machine comprises a base, an upright post arranged on the base and a lifting assembly capable of lifting relative to the upright post; characterized in that the drive assembly comprises: the device comprises a driving piece, a first driving wheel, a second driving wheel, a first transmission belt, a second transmission belt, a first synchronous wheel and a second synchronous wheel;
the output shaft of the driving part is connected with the first driving wheel and the first synchronous wheel so as to drive the first driving wheel and the first synchronous wheel to synchronously rotate;
the second synchronizing wheel is in transmission connection with the first synchronizing wheel so as to drive the second synchronizing wheel to rotate through the first synchronizing wheel; the second driving wheel and the second synchronizing wheel are coaxially arranged, and the second driving wheel is driven to rotate by the second synchronizing wheel, so that the first driving wheel and the second driving wheel synchronously rotate;
the first driving wheel is used for being connected with the lifting assembly through the first transmission belt, and the second driving wheel is used for being connected with the lifting assembly through the second transmission belt, so that when the first driving wheel and the second driving wheel rotate synchronously, the lifting assembly is driven to do lifting motion through the first transmission belt and the second transmission belt respectively.
2. The drive assembly of claim 1,
the first synchronous wheel is connected with the second synchronous wheel through a synchronous belt; or the like, or, alternatively,
the first synchronizing wheel and the second synchronizing wheel are both gears, and the first synchronizing wheel and the second synchronizing wheel are in meshing transmission through an intermediate gear.
3. The drive assembly according to claim 2, wherein the first synchronizing wheel is connected to the second synchronizing wheel via a timing belt, and a tension wheel is disposed on one side of the timing belt and is configured to abut against the timing belt to adjust a tension of the timing belt.
4. The drive assembly of claim 1, wherein the axes of the first and second drive wheels are arranged in parallel and the first drive wheel is adapted to be disposed between the second drive wheel and the base such that the first drive belt is parallel to the second drive belt and the first drive belt is located inboard of the second drive belt.
5. The drive assembly as set forth in claim 1 wherein said first synchronizing wheel is geared at a linear speed equal to said second synchronizing wheel and wherein a ratio of radii between said first drive wheel and said first synchronizing wheel is equal to a ratio of radii between said second drive wheel and said second synchronizing wheel such that said drive member operates at a linear speed equal to said first drive wheel and said second drive wheel.
6. The drive assembly of claim 5, wherein the first drive wheel and the second drive wheel are equal in diameter, and the first sync wheel and the second sync wheel are equal in diameter;
the driving assembly further comprises a first driven wheel, the first driven wheel and the second driving wheel are arranged on one side, facing the ascending direction of the lifting assembly, of the first driving wheel, the first driven wheel and the second driving wheel are arranged along the circumferential direction of the first driving wheel, and the second driving belt is sleeved on the second driving wheel and the first driven wheel at the same time, so that the second driving belt is located on the outer side of the first driving belt and has a gap with the first driving belt.
7. The drive assembly as recited in claim 6, wherein said first driven wheel and said second driven wheel are aligned in a direction perpendicular to said lifting direction.
8. The drive assembly according to any one of claims 1-7, further comprising a shaft, a first bearing seat, a second bearing, and a second bearing seat;
the first bearing is arranged on the first bearing seat, the second bearing is arranged on the second bearing seat, and the first bearing seat and the second bearing seat are used for being connected with the stand column;
the first driving wheel and the first synchronizing wheel are connected to the first bearing through an output shaft of the driving part, and the second driving wheel and the second synchronizing wheel are connected to the second bearing through the rotating shaft.
9. A hoist, comprising: a base, a column, a lift assembly and a drive assembly as claimed in any one of claims 1 to 8;
the stand set up in on the base, drive assembly set up in on the stand, lifting unit connect in drive assembly, drive assembly is used for the drive lifting unit for stand elevating movement.
10. The hoisting machine as recited in claim 9, characterized in that a mounting plate is provided at an end of the column facing away from the base, the second drive wheel being provided on the mounting plate; the upright post is provided with a mounting opening at the position adjacent to the mounting plate, and the first driving wheel is arranged in the mounting opening and connected with the upright post.
11. The hoist as in claim 9, the lift assembly including a coupling assembly and a lift table, the lift table being coupled to the first drive belt and the second drive belt by the coupling assembly;
the connecting assembly comprises a connecting plate, a first tensioning mechanism and a second tensioning mechanism, the connecting plate is fixedly connected with the lifting platform, and the first tensioning mechanism and the second tensioning mechanism are arranged on the connecting plate;
the first tensioning mechanism is connected with the first transmission belt and is used for connecting the first transmission belt to the connecting plate and adjusting the tensioning force of the first transmission belt; the second tensioning mechanism is connected with the second transmission belt and used for connecting the second transmission belt to the connecting plate and adjusting the tensioning force of the second transmission belt.
12. The hoisting machine as recited in claim 11, wherein a second driven wheel is disposed at an end of the column facing the base, and the first drive belt is sleeved outside the first and second driven wheels.
13. The hoisting machine as claimed in claim 12, wherein the first tensioning mechanism comprises a first clamping block and a second clamping block, the first clamping block and the second clamping block are arranged on the connecting plate in a row along the moving direction of the first drive belt, and the first clamping block and the second clamping block are clamped and fixed to the first drive belt;
the second clamping block is fixed to the connecting plate in a position variable manner along the moving direction of the first transmission belt, so that when the tension of the first transmission belt needs to be adjusted, the second clamping block can be adjusted through the movement of the second clamping block relative to the connecting plate; when the tension of the first drive belt does not need to be adjusted, the second clamping block is fixed to the connecting plate.
14. The hoist as in claim 13, the first tensioning mechanism further comprising a first adjustment member connected between the first clamping block and the second clamping block for adjusting a distance between the first clamping block and the second clamping block to adjust the tensioning force of the first drive belt.
15. The hoisting machine as claimed in claim 11, characterized in that the second tensioning mechanism comprises a third clamping block which is clampingly fixed to the second drive belt, the third clamping block being positionally variably fixed to the connecting plate in the direction of movement of the second drive belt, so that the third clamping block adjusts the tensioning force of the second drive belt when moving relative to the connecting plate.
16. The hoist as in claim 15, the second tensioning mechanism further comprising a second adjustment member connected between the third clamping block and the connecting plate for adjusting the position of the third clamping block on the connecting plate to adjust the tension of the second drive belt.
17. The hoisting machine as claimed in any one of claims 11 to 16, characterized in that the lifting platform is arranged on the connecting plate and is movably connected to the column by means of the connecting assembly.
18. The hoisting machine as claimed in any one of claims 11 to 16, wherein a plurality of sets of mounting portions are provided on the connecting plate along the moving direction of the first belt, each set of mounting portions including a plurality of mounting structures provided along the moving direction of the first belt, and the elevating platform is detachably connected to the connecting plate through the mounting portions; wherein the interval between adjacent mounting structures is less than or equal to the interval between adjacent mounting parts.
19. The hoist as in any one of claims 11-16, the lifting assembly further comprising a weight block fixedly connected to the first and second belts and movably connected to the column, wherein the weight block and the lifting platform are located on opposite sides of the column.
20. The hoisting machine as claimed in any one of claims 9-16, characterized in that the column is of one-piece construction.
CN202222196145.6U 2022-08-19 2022-08-19 Drive assembly and lifting machine Active CN217867924U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222196145.6U CN217867924U (en) 2022-08-19 2022-08-19 Drive assembly and lifting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222196145.6U CN217867924U (en) 2022-08-19 2022-08-19 Drive assembly and lifting machine

Publications (1)

Publication Number Publication Date
CN217867924U true CN217867924U (en) 2022-11-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222196145.6U Active CN217867924U (en) 2022-08-19 2022-08-19 Drive assembly and lifting machine

Country Status (1)

Country Link
CN (1) CN217867924U (en)

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