CN220998904U - Interval adjustable compensating beam hoist - Google Patents

Abstract

The embodiment of the application relates to a balance beam lifting appliance with adjustable spacing, and belongs to the technical field of balance cranes. The embodiment of the application aims to solve the technical problems that the distance between hanging rope hooks of the existing balance crane is not easy to move and is not suitable for hoisting parts with different sizes. The balance beam lifting appliance comprises a bearing mechanism and a spacing adjusting mechanism arranged on the bearing mechanism; the spacing adjusting mechanism comprises a transverse spacing adjusting mechanism and a vertical moving mechanism, wherein the vertical moving mechanism drives the transverse spacing adjusting mechanism and the lifting rope to vertically move, and the transverse spacing adjusting mechanism drives the lifting rope to horizontally move on the bearing mechanism. The balance beam lifting appliance provided by the embodiment of the application is suitable for thin-wall parts with different lengths, reduces the number of lifting tools, can gradually adjust the position by utilizing a moving device for the problem of uncertainty of the gravity center of irregular parts, and finally achieves balance to ensure the lifting stability of the parts.

Description

Interval adjustable compensating beam hoist

Technical Field

The embodiment of the application belongs to the technical field of balance cranes, and particularly relates to a balance beam lifting appliance with an adjustable distance.

Background

The balance crane is a material lifting device, and the lifting mechanism is used for lifting heavy objects to replace manual labor to reduce labor intensity. The large-scale balance crane commonly found in the market at present mainly has the following defects: the distance between the common measuring hanging hooks is not movable, and parts with different lengths and gravity centers are required to be manufactured into different measuring hanging hooks. The balance crane with adjustable spacing needs to be lowered, manually adjusted and has low efficiency. For large parts lifted by adopting the crane, if the crane is frequently used for moving, the crane is very easy to damage, and the cost for maintaining the crane is high.

Meanwhile, the conventional balance crane often uses a moving structure as a part of a bearing structure, but the moving structure is used as a weak strength structure and cannot bear large longitudinal force. This limits the lifting weight and long-term reliability of the balance crane. Taking a moving structure as a screw mechanism for screw transmission as an example, the screw mechanism is taken as a typical transmission mechanism, and the shear stress which can be borne by the screw mechanism is very small, so that the weight which can be lifted is relatively small, the screw mechanism is not suitable for lifting large parts, for example, the prior art with the publication number of CN218619870U, the patent name of which is a support device with high stability for balancing the crane, is also a balance beam lifting appliance with adjustable lifting distance, but the patent just uses a lifting hook to be matched with the screw, the lifting hook can be moved by rotating the screw, the screw of the moving part is closely contacted with the lifting hook, the weight and the shaking of the lifting part can be conducted on the screw, the screw is subjected to the shear stress, the screw is extremely easy to damage, and meanwhile, the installation requirement on the moving part is high.

Some balance hanging moving structures adopt roller structures, by adopting the structure, bearing parts of the roller structures need to bear weight, and the rollers of the balance hanging moving structures are extremely easy to derail under the condition of bearing heavy objects, so that the moving structures are invalid, and the reliability is low. Meanwhile, the upgrading cost is higher, the bearing capacity of the interval adjusting mechanism is usually increased to improve the bearing capacity, but the bearing effect is not obviously improved.

Disclosure of utility model

In view of the above, the embodiment of the application provides a balance beam lifting appliance with an adjustable distance, which solves the technical problems that the distance between lifting rope hooks of the existing balance crane is not easy to move and is not suitable for lifting parts with different sizes.

The embodiment of the application provides a balance beam lifting appliance with adjustable space, which comprises a bearing mechanism and a space adjusting mechanism arranged on the bearing mechanism; the space adjusting mechanism comprises a transverse space adjusting mechanism and a vertical moving mechanism, wherein the vertical moving mechanism drives the transverse space adjusting mechanism and the lifting rope to vertically move, and the transverse space adjusting mechanism drives the lifting rope to horizontally move on the bearing mechanism;

The vertical moving mechanism comprises a first motor arranged at the end part of the beam, wherein an output shaft of the first motor drives a screw rod to drive, the screw rod is in threaded connection with a positioning plate, and the positioning plate is connected with the transverse interval adjusting mechanism;

The transverse interval adjusting mechanism comprises a belt, a limiting plate and a transmission piece arranged below the positioning plate, wherein the transmission piece is arranged in a storage bin arranged below the end part of the beam and driven by a second motor, and the limiting plate is connected to the middle position of the beam in a sliding way;

the end part of the transmission piece, a third transmission wheel on the end part of the positioning plate and a second transmission wheel on the end part of the limiting plate are transmitted through a belt.

According to the balance beam lifting appliance disclosed by the embodiment of the application, the transverse adjusting mechanism and the vertical moving mechanism are arranged, the vertical moving mechanism is used for vertically adjusting the lifting rope to separate from the bearing mechanism, then the transverse adjusting mechanism is used for driving the lifting rope to horizontally move on the bearing mechanism, so that the distance between the lifting ropes is adjusted, the balance beam lifting appliance is suitable for thin-wall parts with different lengths, the number of lifting tools is reduced, meanwhile, the problem of uncertainty of the gravity center of irregular parts is solved, the position can be gradually adjusted by using the moving device, the balance is finally achieved, and the lifting stability of the parts is ensured.

In some embodiments including the foregoing embodiments, the load bearing mechanism includes a beam, wherein barbs are disposed at two ends of a top of the beam, a partition protruding portion is disposed at a middle position of the top of the beam, and a plurality of groups of saw teeth are disposed at two sides of the top of the beam and located on the partition protruding portion.

In some embodiments including the foregoing embodiments, the tops of the saw teeth are in an arc structure, the roots of the saw teeth are in a right angle structure, and a gap for holding a lifting rope is formed between the two teeth.

In some embodiments including the above embodiments, the bottom of the screw rod is movably mounted at the end of the beam, and the end of the beam and two sides of the screw rod are further provided with a positioning and limiting rod, wherein the limiting rod is slidably connected with the positioning plate.

In some embodiments including the above embodiments, the driving member includes a driving shaft movably connected in the storage bin, two ends of the driving shaft are mounted on the cross beam, a worm wheel is disposed at a middle position of the driving shaft, a bottom of the worm wheel is meshed with the worm, the worm is driven by the second motor, and first driving wheels connected with the belt drive are further disposed on the driving shaft and located on two sides of the worm wheel.

In some embodiments including the foregoing embodiments, the limiting plate is in an "i" structure, where four free ends of the limiting plate are movably connected to a second driving wheel, and a tensioning mechanism is further disposed at the bottom of the limiting plate.

In some embodiments, which may include the above embodiments, the tensioning mechanism includes a third motor and a driving shaft, wherein the third motor is disposed at a middle position of the beam and directly below the partition boss, and the driving shaft of the third motor drives the limiting plate to slide on the partition boss.

In some embodiments, which may include the above embodiments, the spacing adjustment mechanism is provided with two sets, and the two sets of spacing adjustment mechanisms are symmetrically distributed on the load bearing mechanism.

Compared with the prior art, the embodiment of the application has the following beneficial effects:

1. According to the application, the transverse adjusting mechanism and the vertical moving mechanism are arranged, the vertical moving mechanism is used for vertically adjusting the lifting rope to separate from the bearing mechanism, then the transverse adjusting mechanism is used for driving the lifting rope to horizontally move on the bearing mechanism, so that the distance between lifting ropes is adjusted, the lifting mechanism is suitable for thin-wall parts with different lengths, the number of lifting tools is reduced, meanwhile, the problem of uncertainty of the gravity center of irregular parts is solved, the position can be gradually adjusted by using the moving device, and finally, the balance is achieved, and the lifting stability of the parts is ensured.

2. According to the application, the space is adjusted by the transverse adjusting mechanism, the vertical adjusting mechanism is utilized to vertically adjust the lifting rope after the adjustment action is completed, the lifting rope falls back onto the cross beam, the bearing structure during lifting operation is a main body of the cross beam, the space adjusting mechanism is not stressed, the bearing structure is simple, the bearing force is large, failure is not easy to occur, the cost is low, and the long-term stress of the space adjusting mechanism is prevented from influencing the service life of the space adjusting mechanism.

3. The third motor is arranged at the bottom of the limiting plate, and can drive the limiting plate to slide up and down in the partition protruding plate when the belt tensioning device is used, so that the belt can be driven to correspondingly move up and down, and the belt tensioning effect is achieved.

4. The application has lower upgrading cost, only needs to improve the strength of the cross beam if the lifting weight needs to be improved, and the moving structure does not need to be adjusted.

5. According to the application, the two groups of belts are arranged on both sides of the cross beam, and the lifting rope is lifted and supported by the two groups of belts, so that the lifting stability is improved.

6. The balance crane can adopt a remote control function, and the distance between the lifting hooks or the lifting ropes can be controlled through the remote controller, so that the up-down frequency of travelling crane is reduced; the manual adjustment of workers is not needed, and the working efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of a spreader for a balance beam according to an embodiment of the present application;

FIG. 2 is a front cross-sectional view of a spreader beam in accordance with an embodiment of the present application;

FIG. 3 is an enlarged view of the inner end position of FIG. 2 in accordance with an embodiment of the present application;

FIG. 4 is an enlarged view of the middle position in FIG. 2 according to an embodiment of the present application;

FIG. 5 is a schematic view of the structure of the beam end of the present application when engaged with a spacing adjustment mechanism;

FIG. 6 is a schematic structural view of a spacing adjustment mechanism according to an embodiment of the present application;

FIG. 7 is an enlarged view of a portion of the interior of FIG. 6 in accordance with an embodiment of the present application;

FIG. 8 is an elevation view of a load bearing structure according to an embodiment of the application;

FIG. 9 is a cross-sectional view taken along the direction A-A in FIG. 8 in accordance with an embodiment of the present application;

FIG. 10 is a B-B cross-sectional view of FIG. 9 in accordance with an embodiment of the present application;

FIG. 11 is a schematic view of the balance beam hoist in accordance with the present application when mated with a hoist rope;

fig. 12 is an enlarged view of a portion of fig. 11 in accordance with an embodiment of the present application.

Reference numerals illustrate:

1-a bearing mechanism;

11-a cross beam; 111-placing a storage bin; 12-partition bosses; 13-saw teeth; 14-barbs;

2-a spacing adjustment mechanism;

21-a first motor; 210-a first gear; 211-a second gear; 212-a third driving wheel;

213-a first drive wheel; 22-screw rod; 23-positioning plates; 24-worm wheel; 25-worm; 26-a second motor; 27-limiting plates; 28-a second driving wheel; 29-a transmission shaft;

3-a tensioning mechanism;

31-a third motor; 32-drive shaft.

Detailed Description

In order to solve the technical problems that in the related art, the distance between hanging ropes of a balance crane is not easy to move and is not suitable for hoisting parts with different sizes, the balance beam sling in the embodiment of the application is provided with the transverse adjusting mechanism and the vertical moving mechanism, the vertical moving mechanism is firstly used for vertically adjusting the hanging ropes to separate from the bearing mechanism, then the transverse adjusting mechanism is used for driving the hanging ropes to horizontally move on the bearing mechanism, so that the distance between the hoisting ropes is adjusted, the balance beam sling is suitable for thin-wall parts with different lengths, the number of hoisting tools is reduced, meanwhile, the problem that the gravity center of irregular parts is uncertain can be solved, the position can be gradually adjusted by using the moving device, and finally, the balance is achieved, and the hoisting stability of the parts is ensured.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Referring to fig. 1 and 11, a balance beam lifting appliance with adjustable space comprises a bearing mechanism 1 and a space adjusting mechanism 2 arranged in the bearing mechanism 1, wherein a lifting rope is directly hung on the bearing mechanism 1, the bearing mechanism 1 is used for bearing in lifting operation, and when the space of the lifting rope needs to be adjusted, the space adjusting mechanism 2 is used for adjusting the space of the lifting rope, so that the lifting rope is suitable for an object to be lifted.

Referring to fig. 1, 2, 8 and 9, illustratively, the load-bearing mechanism 1 includes a cross beam 11, partition protrusions 12, saw teeth 13 and barbs 14, wherein the barbs 14 are arranged at two ends of the top of the cross beam 11, the barbs 14 play a role in preventing the lifting rope from turning over, and are arranged at two ends of the cross beam 11 to limit the lifting rope; a partition protruding part 12 is arranged at the middle position of the top of the cross beam 11, wherein a chute is formed in the partition protruding part 12 and can be used for storing the tensioning mechanism 3 (shown in fig. 2 and 4), and a hanging hole is formed in the middle of the top of the partition protruding part 12, so that the lifting appliance is convenient to take and the like; the top of the cross beam 11 and the two sides of the partition protruding portion 12 are respectively provided with a plurality of groups of saw teeth 13, and the plurality of groups of saw teeth 13 are distributed at equal intervals.

It should be noted that, according to the size of the beam 11, the present application is not limited herein, and how many groups of the saw teeth 13 are specifically arranged; the tops of the saw teeth 13 are in arc-shaped structures, the roots of the saw teeth 13 are in right-angle structures, a gap for accommodating the lifting rope is formed between the two teeth, the gap can reliably accommodate the lifting rope, the lifting rope is clamped by the two saw teeth, the lifting rope is effectively prevented from being transversely accumulated, and meanwhile, the lifting rope can be ensured to move vertically and vertically smoothly; the circular arc shape can ensure that the lifting rope can smoothly drop into the tooth gaps, can not be clamped at the top, and can not scratch the lifting rope.

Grooves are formed in the cross beam 11 and are positioned on two sides of the plurality of groups of saw teeth 13 (as shown in fig. 9 and 10), fig. 9 is a cross section view of the cross beam in left or right view, the grooves are formed on two sides of the saw teeth 13 as can be seen in fig. 9, fig. 10 is a cross section view of the groove part in fig. 9, and fig. 10 shows that the grooves penetrate through the cross beam part and are used for installing belt groups in the interval adjusting mechanism 2, so that allowance is reserved for interval adjustment of the belt groups; the application is provided with a storage bin 111 on both sides of the bottom of the beam 11, and the storage bin 111 is used for storing the second motor 26 and other components in the spacing adjustment mechanism 2 (as shown in fig. 2 and 3).

Referring to fig. 1, 2, 6 and 10, the spacing adjustment mechanism 2 is provided with two groups, and the two groups of spacing adjustment mechanisms 2 are symmetrically distributed on the bearing mechanism 1. Illustratively, the spacing adjusting mechanism 2 includes a transverse spacing adjusting mechanism and a vertical moving mechanism, wherein the vertical moving mechanism drives the transverse spacing adjusting mechanism and the lifting rope to vertically move upwards, so that the lifting rope is separated from the cross beam 11, and after the transverse spacing adjusting mechanism drives the lifting rope to horizontally move, the lifting rope is then moved downwards through the vertical moving mechanism, so as to drive the lifting rope to be clamped on the cross beam 11 again, thereby realizing spacing adjustment of the lifting rope, and note that two groups of spacing adjusting mechanisms 2 on the cross beam 11 can respectively adjust the corresponding lifting ropes to move, and the movement of the two lifting ropes is not affected.

Referring to fig. 3 and 5-7, the vertical moving mechanism comprises a first motor 21 arranged in a groove at the end part of the cross beam 11, wherein an output shaft of the first motor 21 drives a screw rod 22 to drive, the screw rod 22 is in threaded connection with a positioning plate 23, and the positioning plate 23 is connected with the transverse interval adjusting mechanism. The output shaft of the first motor 21 is connected with a second gear 211, the top of the screw 22 is connected with a first gear 210, wherein the first gear 210 is meshed with the second gear 211, so that the first motor 21 can drive the second gear 211 to rotate and further drive the first gear 210 to rotate and further drive the screw 22 to rotate, and when the screw 22 rotates, the positioning plate 23 can be driven to move up and down along the direction of the screw 22;

The bottom of the screw rod 22 is movably mounted at the end of the cross beam 11, the end of the cross beam 11 and two sides of the screw rod 22 are also provided with limiting rods, wherein the limiting rods are in sliding connection with the positioning plates 23, when the screw rod 22 drives the positioning plates 23 to move up and down, the limiting rods can play a limiting role on the positioning plates 23, the positioning plates 23 can also move up and down outside the limiting rods, and the limiting rods are arranged in parallel with the screw rod 22; when the positioning plate 23 moves up and down, the transverse spacing adjusting mechanism connected with the positioning plate is driven to adjust the up and down positions, and after the vertical moving mechanism lifts the transverse spacing adjusting mechanism, the balance lifting appliance enters a spacing adjusting state.

Referring to fig. 2, 3 and 7, the transverse spacing adjustment mechanism includes a belt, a limiting plate 27 and a transmission member disposed below the positioning plate 23, wherein the transmission member is disposed in a storage bin 111 disposed below an end portion of the beam 11 and is driven by a second motor 26, the transmission member includes a transmission shaft 29 movably connected in the storage bin 111, two ends of the transmission shaft 29 are mounted on the beam 11, a worm wheel 24 is disposed at a middle position of the transmission shaft 29, a bottom of the worm wheel 24 is meshed with the worm 25, the worm 25 is driven by the second motor 26, and first driving wheels 213 connected with the belt are disposed on two sides of the worm wheel 24 on the transmission shaft 29, so that the worm 25 can be driven to rotate by controlling the second motor 26, when the worm 25 rotates, the worm wheel 24 can be driven to rotate, the transmission shaft 29 and two first driving wheels 213 thereon can be driven to rotate accordingly, and in this process, since the transmission shaft 29 is movably connected in the storage bin 111, the transmission shaft 29 also realizes free rotation, thereby driving the belt.

Illustratively, the limiting plate 27 is slidably connected at a middle position of the cross beam 11, that is, the limiting plate 27 is capable of sliding inside the partition boss 12 (as shown in fig. 4 and 10); the worm wheel 24, the third driving wheel 212 and the second driving wheel 28 which are positioned on the same side are driven by belts, and similarly, as can be seen from fig. 6, four groups of belts are arranged in the application, and two belts positioned on one side of the limiting plate 27 can rotate simultaneously, so that the driving of the lifting rope is realized simultaneously.

The limiting plate 27 is in an 'I' -shaped structure, wherein the four free ends of the limiting plate 27 are movably connected with a second driving wheel 28, and the bottom of the limiting plate 27 is also provided with a tensioning mechanism 3. The tensioning mechanism 3 comprises a third motor 31 and a driving shaft 32, wherein the third motor 31 is arranged at the middle position of the cross beam 11 and right below the partition protruding portion 12, the driving shaft 32 of the third motor 31 can drive the limiting plate 27 to slide on the partition protruding portion 12, when the partition protruding portion 12 is driven to move upwards, the lifting regulation of the belt can be realized, the lifting rope is driven to move upwards, and a certain tensioning effect can be achieved on the belt.

It should be noted that, the first motor 21 and the second motor 26 of the present application and the third motor 31 of the present application may be connected to the control end of the balance crane of the present application, and the distance between the hooks or the lifting ropes may be adjusted by remote control; the manual adjustment of workers is not needed, and the working efficiency is improved.

The specific operation principle of the application is as follows: two lifting ropes are arranged on the cross beam 11, the two lifting ropes are connected with a lifting object and clamped between two saw teeth 13 (as shown in fig. 11 and 12), when the distance between the two lifting ropes is adjusted, two motors in the vertical moving mechanism work simultaneously, the transverse distance adjusting mechanism is controlled to move up and down integrally, two limit rods are arranged on two sides of each of the two screw rods to limit, deflection is not caused when the transverse distance adjusting mechanism moves up and down, the vertical moving mechanism lifts the transverse moving mechanism, the belt is contacted with the lifting ropes, and the lifting ropes are separated from the cross beam 11 temporarily, so that transverse distance adjustment can be carried out at the moment;

When the vertical moving mechanism lifts the transverse spacing adjusting mechanism, the balance crane enters a spacing adjusting state, the second motor 26 drives the transmission shaft 29 and the two first transmission wheels 213 to rotate through the worm 25 and the worm wheel 24, the belt is further moved, the position of the lifting rope above the belt is adjusted, after the belt reaches a destination, the vertical moving mechanism descends, the lifting rope descends into a gap of the saw teeth of the bearing main body, the transverse spacing adjustment is completed, the balance crane enters a lifting state, and at the moment, the spacing adjusting mechanism is not contacted with the lifting rope.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (8)

1. The balance beam lifting appliance with the adjustable space is characterized by comprising a bearing mechanism and a space adjusting mechanism arranged on the bearing mechanism;

The space adjusting mechanism comprises a transverse space adjusting mechanism and a vertical moving mechanism, wherein the vertical moving mechanism drives the transverse space adjusting mechanism and the lifting rope to vertically move, and the transverse space adjusting mechanism drives the lifting rope to horizontally move on the bearing mechanism;

The vertical moving mechanism comprises a first motor arranged at the end part of the beam, wherein an output shaft of the first motor drives a screw rod to drive, the screw rod is in threaded connection with a positioning plate, and the positioning plate is connected with the transverse interval adjusting mechanism;

the transverse interval adjusting mechanism comprises a belt, a limiting plate and a transmission piece arranged below the positioning plate, wherein the transmission piece is arranged in a storage bin arranged below the end part of the beam and driven by a second motor, and the limiting plate is connected to the middle position of the beam in a sliding way; the end part of the transmission piece, a third transmission wheel on the end part of the positioning plate and a second transmission wheel on the end part of the limiting plate are transmitted through a belt.

2. The spacing-adjustable balance beam lifting appliance according to claim 1, wherein the bearing mechanism comprises a cross beam, barbs are arranged at two ends of the top of the cross beam, partition protruding portions are arranged at the middle positions of the top of the cross beam, and a plurality of groups of saw teeth are arranged at the top of the cross beam and positioned on two sides of the partition protruding portions.

3. The spacing-adjustable balance beam sling according to claim 2, wherein the tops of the saw teeth are arc-shaped structures, the roots of the saw teeth are right-angle structures, and a gap for holding a lifting rope is formed between the two teeth.

4. The spacing-adjustable balance beam lifting appliance according to claim 1, wherein the bottom of the screw rod is movably mounted at the end part of the cross beam, and two sides of the screw rod are further provided with a positioning limit rod at the end part of the cross beam, wherein the positioning limit rod is in sliding connection with the positioning plate.

5. The spacing-adjustable balance beam lifting appliance according to claim 1, wherein the transmission piece comprises a transmission shaft movably connected in the storage bin, two ends of the transmission shaft are mounted on the cross beam, a worm wheel is arranged in the middle of the transmission shaft, the bottom of the worm wheel is meshed with a worm, the worm is driven by a second motor, and first transmission wheels in transmission connection with the belt are further arranged on the transmission shaft and located on two sides of the worm wheel.

6. The spacing-adjustable balance beam lifting appliance according to claim 5, wherein the limiting plate is of an 'I' -shaped structure, wherein the four free ends of the limiting plate are movably connected with second driving wheels, and a tensioning mechanism is further arranged at the bottom of the limiting plate.

7. The adjustable-spacing balance beam lifting appliance according to claim 6, wherein the tensioning mechanism comprises a third motor and a driving shaft, wherein the third motor is arranged at the middle position of the cross beam and right below the partition protruding part, and the driving shaft of the third motor drives the limiting plate to slide on the partition protruding part.

8. The adjustable-spacing balance beam sling according to claim 1, wherein two sets of spacing adjustment mechanisms are provided, and the two sets of spacing adjustment mechanisms are symmetrically distributed on the bearing mechanism.