CN106144811A - Leveling device and the lift being provided with this device - Google Patents

Abstract

The present invention proposes a leveling device and an elevator equipped with the leveling device. The leveling device includes at least one turning mechanism and at least one driving mechanism; each turning mechanism includes a rotating shaft and a bridge arm; the rotating shaft is arranged horizontally, and the elevator is arranged on the rotating shaft Below: the bridging arm is arranged on the rotating shaft, and the bridging arm is provided with a bridging plate, the bridging arm can rotate between a withdrawn state and a positioning state, when the bridging arm rotates to the positioning state, the bridging plate can be pressed against the external fixture; drive The mechanism is used to drive the bridge arm to rotate. After the elevator proposed by the present invention is lifted in place, the leveling device rigidly overlaps the elevator with the external fixture through the turning mechanism, so that when the load of the elevator changes, no settlement occurs, ensuring that the elevator can safely and quickly transport goods to parking spaces or On the elevator, leveling is carried out by flipping and overlapping, which meets the leveling requirements of the elevator when there is a large height difference with the external fixed object.

Description

Leveling devices and lifts fitted with such devices

technical field

The invention relates to the technical field of lifting machinery manufacturing, in particular to a leveling device and a lift equipped with the device.

Background technique

In the field of lifting machinery, such as intelligent mechanical garages or special car lifts, the lifter often uses chains or wire ropes to lift the lifting carrier. When the load on the lifting carrier changes, since the chain or wire rope is flexibly connected, it will expand and contract due to the load change, resulting in a certain height difference between the lifting carrier or the handling trolley on the elevator and the parking space, which will affect the carrier. normal operation, and may even cause damage to the carrier. Therefore, ensuring that the lifting carrier or the handling trolley on the elevator can maintain its relative position to the parking space after the load changes is related to whether the carrier can safely and reliably transport the vehicle to the parking space or the elevator. Therefore, the leveling requirements for the elevator access car process are necessary.

The commonly used leveling mechanisms in the existing intelligent mechanical garages all use pin-type leveling mechanisms. The leveling mechanism can adapt to a small leveling height difference and cannot meet the leveling requirements when the height difference is large It is suitable for mechanical garages with large loads.

Therefore, to provide a bridging and leveling mechanism for lifting the carrier or the transport trolley on the elevator in the intelligent mechanical garage, which can adapt to a larger height difference, improve the adaptability of equipment operation, and increase the safety of the garage at the same time. It has become a major technical problem to be solved urgently in the industry.

Contents of the invention

The invention aims to solve the technical problem that the leveling device in the prior art cannot meet the leveling requirements of a large height difference.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

The present invention proposes a leveling device, which is arranged on an elevator for positioning the elevator on an external fixed object, wherein the leveling device includes at least one turning mechanism and at least one driving mechanism; each of the The turning mechanism includes a rotating shaft and a bridge arm; the rotating shaft is arranged horizontally; the bridge arm is arranged on the rotating shaft, and the bridge arm is provided with a bridge plate, and the bridge arm can rotate between a withdrawn state and a positioning state , when the bridging arm rotates to the positioning state, the bridging plate can be pressed against the external fixture; the driving mechanism is used to drive the bridging arm to rotate.

According to an embodiment of the present invention, the bridging arm is fixed to the rotating shaft, and the driving mechanism drives the rotating shaft to rotate to drive the bridging arm to rotate.

According to another embodiment, the rotating shaft is horizontally fixed on the elevator, and the driving mechanism drives the bridging arm to rotate around the rotating shaft.

According to another embodiment, the driving mechanism is a motor with an output shaft, the leveling device includes two turning mechanisms oppositely arranged, and the turning mechanisms are connected to the output shaft of the motor through the rotating shaft.

According to another embodiment, the bridging arm has a bridging portion and a hinge portion that are angled to each other, the rotating shaft is disposed at the junction of the bridging portion and the hinged portion, and the bridging plate is disposed on the bridging portion.

According to another embodiment, the top of the elevator is provided with a first bearing seat and a second bearing seat, the driving mechanism is a hydraulic cylinder, the cylinder body of the hydraulic cylinder is hinged to the first bearing seat, and the hydraulic cylinder The telescopic rod is hinged to the hinge part, and the rotating shaft is arranged on the second bearing seat.

According to another embodiment, the top of the elevator has a transport trolley, the upper and lower surfaces of the transport trolley are respectively provided with a third bearing seat and a fourth bearing seat, and the turning mechanism further includes a crank, and the crank is driven by a The shaft is hinged to the fourth bearing seat, and a chute is provided on the crank; the rotating shaft is arranged on the third bearing seat, the hinge part is hinged to the crank, and the hinge part can move along the The chute slides relatively; the drive mechanism drives the crank to rotate to drive the bridging arm to rotate.

According to another embodiment, the hinge part is provided with a hinge shaft, and a slider is rotatably sleeved on the hinge shaft, and the slider is slidably matched with the slide groove of the crank.

According to another embodiment, the driving mechanism is a motor with an output shaft, the leveling device includes two turning mechanisms oppositely arranged, and the two driving shafts are respectively coaxially connected to two ends of the output shaft. end.

In order to solve the above technical problems, the technical solution proposed by the present invention also includes: providing an elevator, wherein the elevator is provided with the leveling device, and the leveling device can position the elevator on an external fixed things.

It can be seen from the above technical solution that the beneficial effect of the present invention is that when the elevator proposed by the present invention adopts the leveling device, after being lifted in place, the leveling device rigidly overlaps the elevator and the external fixture through the turning mechanism, so that the load of the elevator There will be no settlement during the change, ensuring that the elevator can safely and quickly transport the goods to the parking space or the elevator, and perform leveling by flipping and lapping, which satisfies the leveling of the elevator when there is a large height difference with the external fixed object Require.

Description of drawings

Fig. 1 is a schematic structural view of the first embodiment of the leveling device proposed by the present invention;

Fig. 2 is a top view structural schematic diagram of the first embodiment of the leveling device proposed by the present invention;

Fig. 3 is a schematic structural view of the second embodiment of the leveling device proposed by the present invention;

Fig. 4 is a schematic structural view of the third embodiment of the leveling device proposed by the present invention;

Fig. 5 is a schematic top view of the third embodiment of the leveling device proposed by the present invention;

Fig. 6a is a schematic structural view of the retracted state of the third embodiment of the leveling device proposed by the present invention;

Fig. 6b is a schematic structural view of the third embodiment of the leveling device proposed by the present invention when switching between the withdrawn state and the positioning state;

Fig. 6c is a schematic structural view of the positioning state of the third embodiment of the leveling device proposed by the present invention.

Wherein, the reference signs are explained as follows:

100. Handling trolley; 200. External fixture; 1. Shaft; 2. Bridge arm; 21. Bridge plate; 22. Bridge part; 23. Hinge part; 231. Hinge shaft; 232. Slider; 24. Rib Plate; 31. Cylinder block; 32. Telescopic rod; 4. Motor; 5. Drive shaft; 6. Crank; 61. Chute; S1. First bearing seat; S2. Second bearing seat; S3. Third bearing seat ; S4. The fourth bearing seat.

detailed description

Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and that the descriptions and illustrations therein are illustrative in nature and not intended to limit the present invention. invention.

Implementation Mode 1 of Leveling Device

As shown in FIG. 1 , an embodiment of the leveling device proposed by the present invention. In Embodiment 1, the leveling device is used to position an elevator on an external fixture 200 . The leveling device mainly includes a turning mechanism and a driving mechanism. Wherein, the turning mechanism includes a horizontally arranged rotating shaft 1 and a bridging arm 2 arranged on the rotating shaft 1 . The bridging arm 2 has a bridging plate 21 , and the bridging arm 2 can rotate between a withdrawn state and a positioning state. When the bridging arm 2 is rotated to the positioning state, the bridging plate 21 can be pressed against the external fixture 200 to realize the leveling positioning function of the leveling device for the elevator. Moreover, in this embodiment, the motor 4 is selected as the driving mechanism to drive the bridge arm 2 to rotate. In other embodiments, other devices can also be selected as the driving mechanism, and it is not limited thereto.

In addition, in the first embodiment, the bridging arm 2 is fixed on the rotating shaft 1 (for example, a key is provided on the rotating shaft 1, and a positioning groove is opened on the wall of the shaft hole for the rotating shaft 1 to pass through on the bridging arm 2, so as to cooperate and fix with the key) For example, the driving mechanism of the motor 4 is used to drive the rotating shaft 1 to rotate, so as to drive the bridge arm 2 to rotate. However, in other embodiments, the rotating shaft 1 can also be horizontally fixed on the elevator, and the bridging arm 2 is rotatably arranged on the rotating shaft 1 , that is, the motor 4 is used to drive the bridging arm 2 to rotate around the rotating shaft 1 .

In addition, in Embodiment 1, the number of turning mechanisms may be one or more. Wherein FIG. 1 shows only one turning mechanism, and FIG. 2 shows a top view structure of a leveling device with two turning mechanisms. As shown in Figure 2, the motor 4 has an output shaft, and the two rotating shafts 1 of the two overturning mechanisms are respectively coaxially connected to the two ends of the output shaft, so that the motor 4 drives the two rotating shafts 1 to rotate coaxially at the same time, and simultaneously drives The two bridging arms 2 rotate around the axis of rotation 1 . When the number of turning mechanisms is more than two, the layout of each turning mechanism can also be adjusted flexibly, but not limited thereto.

In addition, as shown in FIG. 1 , in Embodiment 1, a reinforcing rib plate 24 is fixed between the bridging arm 2 and the bridging plate 21 to ensure the structural strength of the leveling device in the positioning state.

Implementation mode two of leveling device

As shown in FIG. 3 , another embodiment of the leveling device proposed by the present invention has substantially the same structure as the first embodiment. The difference is that, in the second embodiment, the bridging arm 2 has a bridging portion 22 and a hinged portion 23 at an angle to each other (the angle between the bridging portion 22 and the hinged portion 23 will be further described in Embodiment 3, and will not be repeated here. ), the rotating shaft 1 is arranged at the intersection of the bridge portion 22 and the hinge portion 23 , and the bridge plate 21 is arranged at the bridge portion 22 . The elevator is provided with a first bearing seat S1 and a second bearing seat S2, the driving mechanism is a hydraulic cylinder, the cylinder body 31 of the hydraulic cylinder is hinged to the first bearing seat S1, the telescopic rod 32 of the hydraulic cylinder is hinged to the hinge part 23, and the shaft 1 Set on the second bearing seat S2.

Similarly, in Embodiment 2, the bridging arm 2 is fixed to the rotating shaft 1 , and the driving mechanism such as a hydraulic cylinder is used to drive the hinge portion 23 of the bridging arm 2 to rotate, so as to drive the bridging arm 2 and the rotating shaft 1 to rotate integrally. However, in other embodiments, the rotating shaft 1 can also be horizontally fixed on the second bearing seat S2, and the bridging arm 2 is rotatably arranged on the rotating shaft 1, that is, the hydraulic cylinder is used to drive the hinge part 23 of the bridging arm 2 to rotate , so as to drive the bridge arm 2 to rotate around the rotating shaft 1 as a whole.

Implementation mode three of leveling device

As shown in FIG. 4 and FIG. 5 , another embodiment of the leveling device proposed by the present invention has substantially the same structure as Embodiment 2. The difference is that, in the present embodiment 3, the leveling device is applicable to an elevator with a transport trolley 100 (the transport trolley 100 shown in FIG. 5 is represented by its two I-beams), and the transport trolley 100 has two surfaces that are up and down. The upper surface of the transfer trolley 100 is provided with a third bearing seat S3, and the lower surface thereof is provided with a fourth bearing seat S4. As shown in FIG. 4 , in Embodiment 3, the rotating shaft 1 is disposed on the third bearing seat S3 , and the turning mechanism further includes a crank 6 hinged to the fourth bearing seat S4 through a drive shaft 5 . Further, the crank 6 is provided with a chute 61, the hinge part 23 is provided with a hinge shaft 231, the hinge shaft 231 passes through the chute 61 of the crank 6, and the hinge shaft 231 is rotatably provided with a slider 232, The sliding block 232 is slidingly matched with the sliding groove 61 . In other embodiments, the function of the hinge part 23 being relatively slidably hinged to the crank 6 may also be realized through other structures, and the present invention is not limited thereto. In Embodiment 3, the sliding fit structure of the chute 61 of the crank 6 and the slider 232 of the hinge part 23 can increase the speed of the idle stroke during the leveling process to save time, and at the same time can slow down the speed of the working stroke to reduce the Impact and increase leveling force. Moreover, the bridge arm 2 designed as a lever can amplify the output force of the driving mechanism, thereby reducing the required driving force.

In addition, as shown in FIG. 4 , in Embodiment 3, the angle α between the bridging portion 22 and the hinge portion 23 is 130°. Also, the bridging plate 21 is perpendicular to the bridging portion 22 . It should be noted that, in other implementation manners, the included angle α may be 90°<α<180°. In addition, other angles can be formed between the bridging portion 22 and the bridging plate 21 , and a vertical structure between the two is a better choice, which is only an exemplary description in Embodiment 3 and is not limited thereto.

In addition, as shown in FIG. 6 a , in Embodiment 3, when the turning mechanism is in the withdrawn state, the hinge portion 23 is in a vertical state. This structural design is designed according to the actual use requirements and combined with the design principle of the lever structure. In other embodiments, other forms of setting methods can also be used, which is not limited thereto. In addition, in Embodiment 3, the number of turning mechanisms may be one or more. Wherein FIG. 4 shows only one overturning mechanism, and FIG. 5 shows a top view structure of a leveling device with two overturning mechanisms. As shown in Figure 5, the motor 4 has an output shaft, and the two drive shafts 5 of the two turning mechanisms are respectively coaxially connected to the two ends of the output shaft, so that the motor 4 drives the two drive shafts 5 to rotate coaxially at the same time. The two cranks 6 are driven to rotate, and the two bridging arms 2 are driven to rotate around the rotating shaft 1 at the same time. When the number of turning mechanisms is more than two, the layout of each turning mechanism can also be adjusted flexibly, but not limited thereto.

Specifically, in this embodiment 3, the leveling bridging action flow of the leveling device is specifically shown in Figure 6a, Figure 6b and Figure 6c, where point A (active hinge point) is to hinge the crank 6 on the fourth The drive shaft 5 of the bearing seat S4, point B (slidable hinge point) is to slidably hinge the hinge part 23 to the hinge shaft 231 of the crank 6, and point C (fixed hinge point) is to hinge the bridge arm 2 to the third bearing Rotating shaft 1 of seat S3. Wherein, as shown in Fig. 6a, when the leveling device is in the withdrawn state, the elevator can carry out lifting action at this time. When the elevator reaches the target floor, the active hinge point A rotates clockwise to drive the crank 6 to rotate, which further drives the bridging arm 2 to rotate. After a certain angle, the bridging plate 21 of the bridging wall 2 contacts the external fixture 200, as shown in Figure 6b Show. It should be noted that, during the rotation process, when the hinge portion 23 is parallel to the crank 6 (that is, on a straight line), the force provided by the drive shaft 5 to the bridging arm 2 is maximum. The active hinge point A continues to rotate until the bridging plate 21 is level with the external fixture 200, as shown in FIG. 6c. At this time, the active hinge point A is locked, and the transport trolley 100 of the elevator forms a mechanically rigid connection with the external fixture 200, so that the elevator will not sink due to the increased load. When the elevator is going to lift, the active hinge point A rotates counterclockwise, driving the bridging arm 2 to rotate counterclockwise around the fixed hinge point C, the bridging plate 21 is separated from the external fixture 200, and stops rotating after reaching the state shown in Figure 6a . At this moment, the bridging plate 21 has a certain distance with the external fixture 200, and the lifter can go up and down normally. The above-mentioned movement process shown in Figure 6a is an idle stroke. At this time, the distance of the AB segment is longer, and the turning speed is faster, which saves the idle stroke time. In the state of motion as shown in Figure 6b, the distance of section AB is shorter, the turning speed is smaller, and the force provided increases, thereby increasing the lifting force and reducing the mechanical impact during the bridging process. In addition, as shown in Figure 6a, Figure 6b and Figure 6c, the active force arm of the turning mechanism is much larger than the passive force arm, so that the output force of the drive can be amplified.

It should be noted that, in Embodiment 1 of the leveling device proposed by the present invention, the existing leveling bridging mode applied to the leveling device with a large height difference is improved to a mechanical rigid connection. Although the embodiment 2 of the leveling device proposed by the present invention is not clearly stated, in fact, the hinge between the cylinder body 31 of the hydraulic cylinder and the first bearing seat S1 in the embodiment 2 is the active part in the above process. Hinge point A; the hinge point of the telescopic telescopic rod 32 and the hinge part 23 is the slidable hinge point B in the above process; the hinge point (rotating shaft 1) of the bridging arm 2 and the second bearing seat S2 is the above-mentioned Fixed hinge point C in the process. It can also be understood that Embodiment 2 and Embodiment 3 of the leveling device proposed by the present invention are all based on Embodiment 1 (that is, the leveling device proposed in Embodiment 1 has fixed hinge points), adding active hinge points With slidable hinge points. In order to further enhance the leveling bridging ability of the leveling device on the basis of meeting the leveling requirements of a large height difference. However, on the basis of Embodiment 1 (fixed hinge points), or under the premise of further adding active hinge points and slidable hinge points, the leveling device can also perform various structural transformations to adapt to different types of Elevators or lifting equipment to meet the needs of leveling bridges in different industries.

Lift implementation

An embodiment of the elevator proposed by the present invention. In this embodiment, the elevator is provided with a leveling device proposed by the present invention, and the leveling device can position the elevator on an external fixed object.

While the leveling device of the present invention and the elevator equipped with the same have been described with reference to several exemplary embodiments, it is to be understood that the terms which have been used are descriptive and exemplary, and are not restrictive. Since the invention can be embodied in various forms without departing from its concept or essence, the above-described embodiments are not limited to any of the foregoing details, but should be construed broadly within the spirit and scope of the appended claims. All changes and modifications within the scope of the claims or their equivalents should be covered by the appended claims.

Claims (10)

1. A leveling device, arranged on an elevator, for positioning the elevator on an external fixture (200), characterized in that, the leveling device comprises: at least one overturning mechanism, each said overturning mechanism comprising: shaft (1), arranged horizontally; and The bridging arm (2) is arranged on the rotating shaft (1), and the bridging arm (2) is provided with a bridging plate (21), and the bridging arm (2) can rotate between a retracted state and a positioned state , when the bridging arm (2) is rotated to the positioning state, the bridging plate (21) can be pressed against the external fixture (200); and At least one driving mechanism is used to drive the bridge arm (2) to rotate. 2. The leveling device according to claim 1, characterized in that, the bridging arm (2) is fixed to the rotating shaft (1), and the driving mechanism drives the rotating shaft (1) to rotate to drive the bridging The arm (2) turns. 3. The leveling device according to claim 1, characterized in that, the rotating shaft (1) is horizontally fixed on the elevator, and the driving mechanism drives the bridge arm (2) around the rotating shaft (1) turn. 4. The leveling device according to any one of claims 1 to 3, characterized in that the drive mechanism is a motor (4) with an output shaft, and the leveling device includes two oppositely arranged turning mechanism, and the turning mechanism is connected with the output shaft of the motor (4) through the rotating shaft (1). 5. The leveling device according to claim 1, characterized in that, the bridging arm (2) has a bridging portion (22) and a hinged portion (23) at an angle to each other, and the rotating shaft (1) is arranged on the At the intersection of the bridging portion (22) and the hinged portion (23), the bridging plate (21) is arranged on the bridging portion (22). 6. The leveling device according to claim 5, characterized in that a first bearing seat (S1) and a second bearing seat (S2) are provided on the top of the elevator, the driving mechanism is a hydraulic cylinder, and the hydraulic pressure The cylinder body (31) of the hydraulic cylinder is hinged on the first bearing seat (S1), the telescopic rod (32) of the hydraulic cylinder is hinged on the hinge part (23), and the rotating shaft (1) is arranged on the second Second bearing seat (S2). 7. The leveling device according to claim 6, characterized in that, the top of the elevator has a transport trolley (100), and the upper and lower surfaces of the transport trolley (100) are respectively provided with a third bearing seat (S3) And the fourth bearing seat (S4), the turning mechanism also includes: The crank (6) is hinged to the fourth bearing seat (S4) through a drive shaft (5), and a slide groove (61) is opened on the crank (6); The rotating shaft (1) is arranged on the third bearing seat (S3), the hinged part (23) is hinged to the crank (6), and the hinged part (23) can move along the chute (61 ) relative sliding; The drive mechanism drives the crank (6) to rotate to drive the bridge arm (2) to rotate. 8. The leveling device according to claim 7, characterized in that, the hinged part (23) is provided with a hinge shaft (231), and a slider (231) is rotatably sleeved on the hinge shaft (231). 232), the sliding block (232) is slidingly matched with the chute (61) of the crank (6). 9. The layer-leveling device according to claim 7 or 8, characterized in that, the drive mechanism is a motor (4) with an output shaft, and the layer-leveling device includes two turning mechanisms arranged oppositely, and the The two drive shafts (5) are respectively coaxially connected to both ends of the output shaft. 10. A lift, characterized in that the lift is provided with the leveling device according to any one of claims 1 to 9, and the leveling device can position the lift on an external fixture (200 ).