CN115594051A - Lifting drive device and lifting system - Google Patents

Abstract

The application belongs to the technical field of lifting equipment and discloses a lifting driving device and a lifting system. The lifting driving equipment comprises a lifting frame and a driving control assembly; the lifting frame comprises a frame body and a first guide wheel assembly, the first guide wheel assembly is arranged on the frame body, and the frame body is used for being connected with the lift car; the drive control assembly is arranged on the frame body and comprises a drive component, and the drive component is provided with a drive gear; the first guide wheel assembly is used for being matched with the guide body so as to guide the frame body to move along the guide body; the driving gear is used for being meshed with the rack of the guide body so as to drive the rack body to move along the guide body. The modular design of lift drive equipment has been realized to this application, has ensured overall structure's compactedness, and not only operating stability is high, has promoted lift drive equipment's carrying capacity moreover.

Description

Lifting drive device and lifting system

Technical Field

The application belongs to the technical field of lifting equipment, and particularly relates to a lifting driving device and a lifting system.

Background

In recent years, with the continuous development of high-altitude lifting equipment, the development of lifting equipment with simple structure, convenient installation, reliable function and low cost becomes the development direction of enterprises.

However, because the existing lifting driving design of the lifting equipment generally has the problems of complex structure, low integration degree and small load capacity, the lifting equipment is mainly arranged in the fields of buildings, electric towers, fan tower drums and the like so as to carry out high-altitude operation of personnel and materials, and the lifting equipment is difficult to be well applied to the fields of signal towers, chimney towers, bridge towers and the like with great difficulty in arrangement.

Disclosure of Invention

The application provides a lift drive equipment and operating system for solve at least one kind technical problem that prior art exists, in order to ensure lift drive equipment's compact structure, promote lift drive equipment's carrying capacity.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides a lift driving apparatus, including:

the lifting frame comprises a frame body and a first guide wheel assembly, the first guide wheel assembly is arranged on the frame body, and the frame body is used for being connected with the lift car;

the drive control assembly is arranged on the frame body and comprises a drive component, and the drive component is provided with a drive gear;

the first guide wheel assembly is used for being matched with a guide body so as to guide the frame body to move along the guide body; the driving gear is used for being meshed with the rack of the guide body so as to drive the rack body to move along the guide body.

According to the lifting driving device provided by the embodiment of the application, the driving control assembly further comprises a mounting plate; the mounting plate is movably connected with the frame body, and at least part of the driving assembly is arranged on the mounting plate;

the mounting plate is provided with a first abutting part; the support body is provided with a second abutting portion, and the first abutting portion and the second abutting portion abut against each other along the extending direction of the guide body.

According to the lifting driving device provided by the embodiment of the application, the driving control assembly further comprises a falling prevention component;

the anti-falling assembly comprises a speed limiter and anti-falling gears, the speed limiter is connected with the anti-falling gears, and the anti-falling gears are meshed with the racks.

According to one embodiment of the present application, there is provided a lift drive apparatus, wherein the drive control assembly further comprises a second guide wheel assembly;

the second guide wheel assembly comprises a plurality of guide wheels, the guide wheels are used for being in rolling connection with the rack, and at least one guide wheel and the driving gear are respectively arranged on the opposite sides of the rack.

According to the lifting driving device provided by the embodiment of the application, the driving control assembly further comprises a stop piece; the stop piece and the guide wheel are arranged on the same side of the rack, and the distance between the stop piece and the rack is larger than the distance between the rim of the guide wheel and the rack, so that the rack is stopped by the stop piece when the guide wheel fails.

According to the lifting driving device provided by the embodiment of the application, the driving control assembly further comprises a plurality of trigger switches; the trigger switches are respectively connected to the control loop of the driving assembly.

According to a lifting driving device provided by an embodiment of the application, the first guide wheel assembly comprises a plurality of roller groups; the roller groups are spaced from each other and are arranged in axial symmetry relative to the rack body; each of the roller groups is disposed around at least a portion of a peripheral wall of the guide body.

According to the lifting driving device provided by the embodiment of the application, the roller group comprises a first roller, a second roller and a third roller;

the first roller, the second roller and the third roller are spaced from each other to form a clamping gap among the first roller, the second roller and the third roller;

the rotational axis of the first roller and the rotational axis of the second roller are parallel, and are perpendicular to the rotation axis of the third roller, respectively.

According to the lift drive equipment that provides of embodiment of this application, the support body deviates from one side of guide body is equipped with the mousing-hook, the mousing-hook is used for preventing the crane is followed break away from on the guide body.

In a second aspect, an embodiment of the present application provides a lifting system, including: a guide body, a car and a lifting drive apparatus as described in any of the above;

the guide body comprises a guide rail bracket and a rack, and the guide rail bracket is connected with the rack and extends along the same direction; the crane is followed guide rail frame liftable sets up, the car is located on the crane.

In the embodiment of this application, through integrating drive control assembly and car on the crane, can be under the guide of the first guide pulley subassembly of crane, set up based on the rack toothing of drive gear and director, drive the crane along director lift operation steadily, not only guaranteed the compactness of lift drive's overall structure, realize the modularized design, and bear the load on drive control assembly and the car through the crane, the stability of lift drive's overall structure has been guaranteed, thereby can dispose powerful drive device to lift drive device, the carrying capacity of lift drive device has been promoted.

The application provides a lifting system, includes as above arbitrary one lift drive equipment, and then has as above all advantages to environmental suitability is strong, and market perspective is wide.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

In order to more clearly illustrate the technical solutions in the present application or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is one of schematic structural diagrams of a lifting drive device provided in an embodiment of the present application;

fig. 2 is a second schematic structural diagram of a lifting driving device according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a drive control assembly according to an embodiment of the present disclosure;

FIG. 4 is a second schematic structural diagram of a drive control assembly according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a rack provided in an embodiment of the present application;

fig. 6 is a second schematic structural view of a frame body according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a lift system provided in an embodiment of the present application;

fig. 8 is a second schematic structural diagram of a lifting system according to an embodiment of the present application;

fig. 9 is a third schematic structural diagram of a lifting system according to an embodiment of the present application.

Reference numerals:

1. a lift drive device; 11. a lifting frame; 12. a drive control assembly; 111. a frame body; 112. a first guide wheel assembly; 113. a support portion; 114. unhooking prevention; 121. mounting a plate; 122. a drive assembly; 123. a fall arrest assembly; 124. a second guide wheel assembly; 125. a stopper; 126. a trigger switch; 1211. a first abutting portion; 1111. a second abutting portion; 1221. a rotary drive member; 1222. a drive gear; 1231. a speed limiter; 1232. the anti-falling gear; 1241. a guide wheel; 1101. a first mounting location; 1102. a second mounting position; 1121. a roller group;

101. a first through hole; 102. a second through hole; 103. a fastener; 1201. a first roller; 1202. a second roller; 1203. a third roller; 11101. a first vertical beam; 11102. a second vertical beam; 11103. a cross beam;

2. a car; 3. a guide body; 31. a guide rail bracket; 32. a rack.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1 to 9, a lifting driving apparatus and a lifting system according to an embodiment of the present application will be described. It should be understood that the following description is only exemplary of the present application and is not intended to limit the present application in any way.

As shown in fig. 1, 2 and 7, an embodiment of the present application provides a lifting drive device, where the lifting drive device 1 includes: a lifting frame 11 and a driving control assembly 12.

The crane 11 comprises a frame body 111 and a first guide wheel assembly 112, the first guide wheel assembly 112 is arranged on the frame body 111, and the frame body 111 is used for being connected with the lift car 2. The first guide wheel assembly 112 is configured to cooperate with the guide body 3 to guide the frame body 111 to move along the guide body 3.

The driving control assembly 12 is disposed on the frame body 111, the driving control assembly 12 includes a driving component 122, the driving component 122 includes a rotary driving component 1221 and a driving gear 1222, an output shaft of the rotary driving component 1221 is connected to the driving gear 1222, and the driving gear 1222 is configured to be meshed with the rack 32 of the guiding body 3.

Thus, when the rotary driving member 1221 drives the driving gear 1222 to rotate, the frame body 111 can be driven to move along the guide body 3 by the driving gear 1222 based on the meshing arrangement of the driving gear 1222 and the rack 32.

In practical applications, the guiding body 3 is generally vertically disposed, the guiding body 3 includes a guide rail bracket 31 and a rack 32, the guide rail bracket 31 and the rack 32 are connected and extend along the same direction, and the guiding body 3 can be disposed on a signal tower or a bridge tower, or the guiding body 3 can be disposed on the surface of a smoke tube. In the case that the guide body 3 is disposed on a signal tower or a bridge tower, the guide rail bracket 31 may be a part of the signal tower or the bridge tower.

Meanwhile, in order to guide the frame body 111 to stably move along the extending direction of the guide body 3, in this embodiment, the frame body 111 of the crane 11 may be disposed at one side of the guide body 3, and the first guide wheel assembly 112 includes a plurality of roller groups 1121, the plurality of roller groups 1121 are respectively disposed on the frame body 111, and each roller group 1121 is in rolling contact with the guide rail frame 31 on the guide body 3.

Thus, the roller groups 1121 are respectively matched with the guide rail frame 31 on the guide body 3, so that the guide frame body 111 can be guided to move along the extending direction of the guide body 3, and the lifting frame 11 can be prevented from being separated from the guide body 3.

Since the drive control assembly 12 and the car 2 are integrated into the crane 11 at the same time, the structural strength of the frame body 111 needs to be ensured. For example, the frame body 111 may be made of a steel structure.

Further, in order to stably and reliably drive the frame body 111 to move along the guide body 3, the driving assembly 122 of the present embodiment may employ a reduction motor as the rotary driving member 1221, so that an output end of the reduction motor and the driving gear 1222 may be coaxially connected.

In some embodiments, to facilitate control of the crane 11 to hover at any position relative to the guide body 3, the drive assembly 122 of the present embodiment may further comprise an electromagnetic brake.

In the process that the lifting frame 11 normally lifts and moves relative to the guide body 3, when the lifting frame 11 needs to be controlled to stop running, the electromagnetic brake can be subjected to power-off control, so that the electromagnetic brake is connected with the output shaft of the rotary driving piece 1221, and the driving gear 1222 can be prevented from rolling relative to the rack 32 based on the brake braking of the electromagnetic brake on the output shaft of the rotary driving piece 1221, so that the lifting frame 11 is ensured to be suspended on the guide body 3.

When it is required to ensure that the crane 11 normally ascends and descends relative to the guide body 3, the electromagnetic brake may be controlled to be energized to separate the electromagnetic brake from the output shaft of the rotary drive 1221, so as to release the brake of the electromagnetic brake on the output shaft of the rotary drive 1221.

In some embodiments, in order to ensure the stability of the elevating operation of the crane 11 and reduce the noise and friction generated when the driving gear 1222 is engaged with the rack 32, the driving gear 1222 of this embodiment may be a zero backlash roller, the rack 32 may be a zero backlash rack, and the zero backlash roller may be engaged with the zero backlash rack.

As can be seen from the above, in the embodiment of the present application, by integrating the driving control assembly 12 and the car 2 on the crane 11, the crane 11 can be stably driven to move up and down along the guide body 3 under the guidance of the first guide wheel assembly 112 of the crane 11 based on the meshing arrangement of the driving gear 1222 and the rack 32 of the guide body 3, so that not only is the compactness of the overall structure of the lifting driving device 1 ensured and the modular design realized, but also the crane 11 bears the loads on the driving control assembly 12 and the car 2, the stability of the overall structure of the lifting driving device 1 is ensured, a driving device with high power can be configured for the lifting driving device 1, and the carrying capacity of the lifting driving device 1 is improved.

In some embodiments, as shown in fig. 2-4, the drive control assembly 12 of the present embodiment further includes a mounting plate 121; the mounting plate 121 is movably connected with the frame body 111, and at least part of the driving assembly 122 is arranged on the mounting plate 121.

The mounting plate 121 is provided with a first abutting portion 1211; the frame body 111 is provided with a second abutting portion 1111, and the first abutting portion 1211 and the second abutting portion 1111 abut against each other in the extending direction of the guide body 3.

Specifically, the mounting plate 121 of the present embodiment may be made of a steel plate having a high structural strength, and the mounting plate 121 and the frame body 111 may be detachably connected to each other, and ensure that the mounting plate 121 has a certain movement margin with respect to the frame body 111.

Meanwhile, the driving assembly 122 includes a rotary driving member 1221 and a driving gear 1222, the rotary driving member 1221 is mounted on a side of the mounting plate 121 facing away from the guide body 3, and an output shaft of the rotary driving member 1221 passes through a first opening of the mounting plate 121 and is connected to the driving gear 1222.

In the prior art, the mounting plate 121 is usually fixedly connected to the frame body 111 through locking members such as locking pins and bolts, and the driving gear 1222 is driven to rotate by the rotary driving member 1221 so that when the crane 11 is lifted relative to the guide body 3, the load on the crane 11 is completely borne by the locking members between the mounting plate 121 and the crane 11, which results in the locking members being easily damaged and thus causing safety accidents.

On the contrary, this application is through setting up first butt portion 1211 on mounting panel 121, set up second butt portion 1111 on support body 111 to set up mounting panel 121 and support body 111 swing joint, then based on the butt that first butt portion 1211 and second butt portion 1111 formed along the extending direction of guide body 3, the realization is undertaken by mounting panel 121 and is born the load on the crane 11, thereby forms effectual protection to the retaining member between mounting panel 121 and the crane 11, has ensured the security that crane 11 goes up and down to move.

In some embodiments, the second abutting portion 1111 and the first abutting portion 1211 may be disposed opposite to each other in the height direction of the frame body 111.

Here, in the present embodiment, the position of the first abutting portion 1211 provided on the mounting plate 121 and the position of the second abutting portion 1111 provided on the frame body 111 are not particularly limited, and it is sufficient to ensure that the second abutting portion 1111 and the first abutting portion 1211 are provided in an up-down opposite manner.

As shown in fig. 2 and 3, in the present embodiment, a first abutting portion 1211 is disposed at a top end of the mounting plate 121, a second abutting portion 1111 is disposed at a top end of the frame body 111, and both the first abutting portion 1211 and the second abutting portion 1111 have a bar shape.

Thus, when the rotary driving member 1221 drives the driving gear 1222 to roll relative to the rack 32, the rotary driving member 1221 applies a driving force to the mounting plate 121 in a reverse direction, so that the mounting plate 121 lifts the frame body 111 to ascend or descend against the gravity of the rotary driving member 1221, and the crane 11 is lifted relative to the guide body 3.

Of course, in this embodiment, a first abutting plate may be disposed at the bottom end of the mounting plate 121, and a second abutting plate may be disposed on the frame body 111, where the first abutting plate and the second abutting plate are in contact and disposed vertically opposite to each other. So, based on the butt of first butt joint board and second butt joint board, accessible support body 111 bears the gravity of drive control assembly 12, also can form effectual protection to the retaining member between mounting panel 121 and crane 11 to a certain extent.

In some embodiments, as shown in fig. 2 and 4, in order to achieve the movable connection between the mounting plate 121 and the frame body 111, in this embodiment, the mounting plate 121 is provided with a plurality of first through holes 101, the frame body 111 is provided with a plurality of second through holes 102, and the plurality of first through holes 101 and the plurality of second through holes 102 are arranged in a one-to-one manner.

In this embodiment, a plurality of mounting ears may be disposed on the frame body 111, and one second through hole 102 is configured on each mounting ear, so that a plurality of second through holes 102 are formed on the frame body 111.

Meanwhile, the mounting plate 121 and the frame body 111 are connected by a fastening member 103 inserted through the first through hole 101 and the second through hole 102, and at least one of the first through hole 101 and the second through hole 102 has a diameter larger than the maximum outer diameter of the fastening member 103.

In this way, after the mounting plates 121 are placed on the mounting ears of the frame body 111 and the first through holes 101 on the mounting plates 121 and the second through holes 102 on the frame body 111 are ensured to be arranged in a one-to-one opposite manner, the mounting plates 121 and the frame body 111 can be connected through the fasteners 103. Since the aperture of at least one of the first through hole 101 and the second through hole 102 is larger than the maximum outer diameter of the fastening member 103, the mounting plate 121 moves relative to the frame body 111 under the action of gravity or other external force, thereby achieving the movable connection of the mounting plate 121 and the frame body 111.

Here, the fastening member 103 of the present embodiment may be a lock bolt, and the first through hole 101 and the second through hole 102 have the same hole diameter, but the hole diameters of the first through hole 101 and the second through hole 102 are both larger than the diameter of the screw of the lock bolt.

In some embodiments, as shown in fig. 2 and 4, the drive control assembly 12 of the present application further includes a fall arrest component 123, the fall arrest component 123 being disposed on the mounting plate 121 in the embodiments described above.

It can be understood that during the normal lifting operation of the crane 11 along the guide body 3, or when the electromagnetic brake fails to brake the contracting brake of the rotating drive 1221, the anti-falling assembly 123 can limit the crane 11 on the guide body 3 under the condition that the crane 11 stalls and falls down, thereby ensuring the safe operation of the crane 11.

As shown in fig. 4 and 9, the fall prevention assembly 123 of the embodiment of the present application includes a speed limiter 1231 and a fall prevention gear 1232, the speed limiter 1231 is mounted on a side of the mounting plate 121 away from the guide body 3, and an output shaft of the speed limiter 1231 passes through a second opening on the mounting plate 121 and is connected to the fall prevention gear 1232.

The anti-falling gear 1232 is used for being meshed with the rack 32, and the speed limiter 1231 is used for limiting the anti-falling gear 1232 to roll relative to the rack 32 when the lifting frame 11 stalls and descends so as to lock the lifting frame 11.

The governor 1231 may be a fall arrest speed limiting device as is known in the art. For example, the speed governor 1231 includes a centrifugal speed limiting mechanism, a braking mechanism, a loading mechanism, a speed limiting switch, and the like. The braking mechanism and the loading mechanism are respectively connected with a centrifugal speed limiting mechanism, and the centrifugal speed limiting mechanism is coaxially connected with the anti-falling gear 1232 through a transmission shaft.

In the lifting operation process of the lifting frame 11, the anti-falling gear 1232 drives the centrifugal speed limiting mechanism to rotate, so that the centrifugal speed limiting mechanism can detect the operation speed of the lifting frame 11. When the lifting frame 11 stalls and descends, namely the centrifugal speed limiting mechanism detects that the running speed of the lifting frame 11 is greater than a preset value, a centrifugal block in the centrifugal speed limiting mechanism is opened, and the braking mechanism is driven to rotate to generate braking force. In the braking process, the braking mechanism is acted by the loading mechanism, so that the braking force is gradually increased until the anti-falling gear 1232 stops rotating.

In some examples, the fall arrest gear 1232 can be a zero backlash roller and the rack 32 can be a zero backlash rack that engages the zero backlash roller.

Because the anti-falling assembly 123 adopts the zero back clearance roller wheel to brake by relying on the zero back clearance rack of the guide body 3, based on the structural characteristics of the zero back clearance roller wheel, the stability of the anti-falling assembly 123 in braking of the lifting frame 11 can be ensured, larger impact is prevented from being generated in locking and braking, and the safety of the lifting operation of the lifting frame 11 is favorably ensured.

In some embodiments, as shown in fig. 2, 4 and 9, the driving control assembly 12 of the embodiment of the present application is further provided with a second guide wheel assembly 124, and the second guide wheel assembly 124 is provided on a side surface of the mounting plate 121 facing the guide body 3.

The second guide wheel assembly 124 comprises a plurality of guide wheels 1241, the guide wheels 1241 are used for being connected with the rack 32 in a rolling manner, and at least one guide wheel 1241 and the driving gear 1222 are respectively arranged at the opposite sides of the rack 32 to ensure that the driving gear 1222 and the rack 32 are kept in a meshed state, so that the normal lifting operation of the lifting frame 11 is prevented from being influenced due to the disengagement of the driving gear 1222 and the rack 32.

As shown in fig. 4 and 9, in the case that the driving control assembly 12 is provided with the fall prevention assembly 123, the embodiment can also relatively arrange the guide wheel 1241 and the fall prevention gear 1232 on opposite sides of the rack 32, so as to ensure that the fall prevention gear 1232 and the rack 32 are kept in a meshed state, and prevent the fall prevention control of the crane 11 from being influenced by the separation of the fall prevention gear 1232 and the rack 32.

Alternatively, the driving gear 1222 and the anti-falling gear 1232 are arranged on a first side of the rack 32, and the driving gear 1222 and the anti-falling gear 1232 are arranged at intervals along the extending direction of the rack 32; the guide wheel 1241 is disposed on a second side of the rack 32, and the second guide wheel assembly 124 may be specifically provided with two guide wheels 1241, wherein one guide wheel 1241 and the driving gear 1222 are disposed on opposite sides of the rack 32, and the other guide wheel 1241 and the anti-falling gear 1232 are disposed on opposite sides of the rack 32.

In some embodiments, the guide wheel 1241 of embodiments of the present application comprises an eccentric guide wheel, and the distance between the rim of the eccentric guide wheel and the rack 32 is adjustable.

Thus, the present embodiment is based on the eccentric guide wheel, not only can the meshing state of the driving gear 1222 or the anti-falling gear 1232 and the rack 32 be adjusted, but also enables the drive control assembly 12 of the present application to accommodate racks 32 of different widths.

In order to facilitate adjusting the distance between the rim of the eccentric guide wheel and the rack 32, the eccentric guide wheel of the embodiment of the present application may include a mounting shaft, a bearing, and a wheel body.

Wherein, the installation axle is equipped with the eccentric orfice to connect with mounting panel 121 through the eccentric orfice. The bearing is sleeved on the mounting shaft, and the wheel body is sleeved on the outer side of the bearing; the installation axle, bearing and wheel body coaxial setting, the axial eccentric setting of the relative installation axle of eccentric orfice.

In the embodiment of the present application, since the central axis of the mounting shaft is parallel to the central axis of the eccentric hole and does not coincide with the central axis of the eccentric hole, and the wheel body is mounted on the mounting shaft through the bearing, by adjusting the mounting angle of the mounting shaft relative to the mounting plate 121 along the circumferential direction of the eccentric hole, the distance between the wheel body and one side surface of the rack 32 away from the driving gear 1222 or the anti-falling gear 1232 can be conveniently adjusted, and the wheel body can be ensured to be in rolling contact with the rack 32.

In some embodiments, as shown in fig. 4 and 9, the drive control assembly 12 of embodiments of the present application further includes a stop 125; the stopper 125 and the guide wheel 1241 are disposed on the same side of the rack 32, and the distance between the stopper 125 and the rack 32 is greater than the distance between the rim of the guide wheel 1241 and the rack 32, so that the rack 32 is stopped by the stopper 125 when the guide wheel 1241 fails.

When the guide wheel 1241 is normally operated, the guide wheel 1241 is in rolling contact with the rack 32, and the stopper 125 and the rack 32 are in a non-contact state; when the guide wheel 1241 is abnormally operated, for example, the guide wheel 1241 is displaced so that the guide wheel 1241 and the rack gear 32 are separated, or the guide wheel 1241 is dropped, the stopper 125 may abut against a side of the rack gear 32 facing away from the driving gear 1222 or the anti-falling gear 1232, so as to ensure that the rack gear 32 and the driving gear 1222 or the anti-falling gear 1232 can maintain the meshed state.

In some embodiments, as shown in fig. 1 to 3, in order to perform deceleration and/or limit control on the crane 11 in operation, the drive control assembly 12 of the embodiment of the present application is further provided with a plurality of trigger switches 126. The plurality of trigger switches 126 are collectively disposed on the mounting plate 121, the plurality of trigger switches 126 are respectively connected to the control circuit of the rotary driving member 1221 of the driving assembly 122, and the plurality of trigger switches 126 are respectively matched with the trigger members on the guide body 3, so as to participate in not only the control of the control module on the working state of the rotary driving member 1221, but also the landing recording function of the car 2.

In practical applications, each trigger switch 126 is connected to an input end of the control module, and the control module controls the working state of the rotary driving member 1221 through the corresponding contactor, so that the control module can correspondingly control the rotation state of the rotary driving member 1221 according to the switching value signal fed back by each trigger switch 126. Wherein, the control module includes but not limited to PLC controller, singlechip etc..

Obviously, in the case that the trigger switch 126 is provided in plurality, the trigger members are correspondingly provided in plurality, the plurality of trigger switches 126 and the plurality of trigger members are arranged in one-to-one correspondence, and each trigger member is respectively arranged on the guide body 3, and the arrangement position of the trigger members on the guide body 3 can be adaptively set according to the control requirement of the trigger switch 126.

The trigger switch 126 may be a travel switch known in the art, and a base of the travel switch is mounted on the mounting plate 121, and a contact of the travel switch extends to a side of the mounting plate 121 facing the guide body 3.

According to the lifting control requirement of the lifting frame 11, the trigger switch 126 of this embodiment may include an upper speed reducing switch, a lower speed reducing switch, an upper limit switch, a lower limit switch, a floor-stopping speed reducing switch, a floor-stopping limit switch, an upper limit switch, a lower limit switch, and the like, which is not limited in this respect.

Based on the solutions of the above embodiments, as shown in fig. 5 and 6, in order to achieve an optimal arrangement of the drive control assembly 12 and the car 2 on the crane 11, a first installation position 1101 and a second installation position 1102 are provided on a side of the frame body 111 facing away from the guide body 3 in the embodiments of the present application.

The first installation position 1101 and the second installation position 1102 are arranged up and down along the height direction of the frame body 111; the first installation site 1101 is used for installing the drive control assembly 12, and the second installation site 1102 is used for installing the car 2.

Since the car 2 itself has a certain weight and the car 2 is used for transportation of people and materials, the car 2 has a larger load than the driving control assembly 12. In this embodiment, the driving control assembly 12 is detachably disposed on the upper side of the frame 111, and the car 2 is detachably disposed on the lower side of the frame 111, so that the center of gravity of the whole lifting driving device 1 can be lowered, and the stability and safety of the device operation can be ensured.

In some embodiments, as shown in fig. 5 and 6, in order to ensure the reliability of installation on the car 2, in the embodiment of the present application, a support portion 113 is provided at the second installation position 1102 of the frame body 111, the support portion 113 is provided at a side surface of the frame body 111 facing away from the guide body 3, and the support portion 113 is used for being supported at the bottom end of the car 2.

Wherein, can set up first mounting hole at supporting part 113, can set up the second mounting hole on support body 111, through the fastener of wearing to locate first mounting hole, can be connected with the bottom of car 2 is detachable, through the fastener of wearing to locate the second mounting hole, can be connected with the backplate of car 2 is detachable.

As shown in fig. 5 and 6, since the frame body 111 needs to bear the load of the whole machine, in order to ensure the structural strength of the frame body 111, the frame body 111 of the embodiment of the present application includes a first vertical beam 11101, a second vertical beam 11102, and a plurality of cross beams 11103, and the first vertical beam 11101, the second vertical beam 11102, and the cross beams 11103 all adopt steel structural beams.

Specifically, the first vertical beam 11101 and the second vertical beam 11102 are spaced, and the first vertical beam 11101 and the second vertical beam 11102 are parallel and opposite to each other. Crossbeam 11103 is located first perpendicular roof beam 11101 and second and is erected between the roof beam 11102, and crossbeam 11103's one end and first perpendicular roof beam 11101 are connected, and the other end and second are erected the roof beam 11102 and are connected, and many crossbeams 11103 are erected the extending direction of roof beam 11102 and are set up at interval in proper order along first perpendicular roof beam 11101 or second.

In the construction process of the lifting frame 11, the first vertical beam 11101 can be welded with one end of each cross beam 11103, the other end of each cross beam 11103 can be welded with the second vertical beam 11102, and finally, the first guide wheel assembly 112 is arranged on the frame body 111.

In some embodiments, as shown in fig. 1 and 2, in order to ensure that the crane 11 stably ascends and descends along the guide body 3, the first guide wheel assembly 112 of the embodiment of the present application includes a plurality of roller wheels 1121; the plurality of roller groups 1121 are spaced from each other and are arranged in axial symmetry with respect to the frame body 111; each roller group 1121 is provided around at least part of the peripheral wall of the guide body 3.

Specifically, the first guide wheel assembly 112 may be provided with four roller groups 1121, and the four roller groups 1121 are disposed at four corners of the frame body 111 in a one-to-one correspondence manner, so that the lifting frame 11 is not only disposed in a vertically symmetrical manner, but also disposed in a horizontally symmetrical manner, so that structural interchangeability of the lifting frame 11 is enhanced, and uniformity of stress of each roller group 1121 is ensured, so that the lifting frame 11 can stably lift and run along the guide body 3.

Meanwhile, by providing each of the roller groups 1121 around at least a portion of the circumferential wall of the guide body 3, the lifting frame 11 can be prevented from being detached from the guide body 3 while the guide frame body 111 moves along the guide body 3, based on the cooperation of the plurality of roller groups 1121 with the rail frames 31 on the guide body 3, respectively.

In some embodiments, as shown in fig. 1 and 2, the roller group 1121 of the embodiments of the present application includes a first roller 1201, a second roller 1202, and a third roller 1203.

The first roller 1201, the second roller 1202 and the third roller 1203 are spaced apart from each other, to enclose a nip gap between the first roller 1201, the second roller 1202 and the third roller 1203; the rotation axis of the first roller 1201 and the rotation axis of the second roller 1202 are parallel and perpendicular to the rotation axis of the third roller 1203, respectively.

As shown in fig. 7, the guide rail frame 31 of the guide body 3 is a rectangular frame structure, and the guide rail frame 31 uses steel pipes arranged at four edges as a main beam, so that the lifting operation of the lifting frame 11 can be guided by the cooperation of the steel pipes and the roller groups 1121.

Because two roller groups 1121 on the upper side of the lifting frame 11 and two roller groups 1121 on the lower side are symmetrically arranged left and right, the first roller 1201, the second roller 1202 and the third roller 1203 corresponding to each roller group 1121 are surrounded on three sides of the steel pipe, and based on the matching of the symmetrically arranged roller groups 1121, when the lifting frame 11 is guided to move along the extending direction of the guide rail frame 31, the lifting frame 11 can be prevented from being separated from the guide rail frame 31.

In some embodiments, as shown in fig. 1 and 2, the frame body 111 of the present embodiment is provided with a separation preventing hook 114 at a side close to the guide body 3, and the separation preventing hook 114 is used for preventing the crane 11 from separating from the guide body 3. The anti-slip hooks 114 can be provided in plurality, and the anti-slip hooks 114 are symmetrically arranged on the frame body 111 in left and right directions.

In practical application, when the lifting frame 11 is guided by the first guide wheel assembly 112 to normally lift and operate, the anti-drop hook 114 and the guide body 3 are in a separated state, and when the first guide wheel assembly 112 breaks down, the anti-drop hook 114 is in contact with the guide body 3 to prevent the lifting frame 11 from being separated from the guide body 3, prevent the lifting frame 11 from tipping over under special conditions and ensure the safety of the lifting frame 11 in lifting and operating.

In some embodiments, as shown in fig. 7 to 9, embodiments of the present application further provide a lifting system, including: a guide body 3, a car 2 and a lifting drive device 1 as described in any of the above; the guide body 3 includes a rail bracket 31 and a rack 32, and the rail bracket 31 and the rack 32 are connected and extend in the same direction; the lifting frame 11 can be arranged in a lifting way along the guide rail frame 31, and the lift car 2 is arranged on the lifting frame 11.

Specifically, since the lifting system of this embodiment includes the lifting driving device 1, and the specific structure of the lifting driving device 1 refers to the foregoing embodiment, the lifting system of this embodiment includes all technical solutions of the foregoing embodiment, and therefore at least has all beneficial effects of all technical solutions of the foregoing embodiment, and details are not repeated here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims (10)

1. A lift drive apparatus, comprising:

the lifting frame comprises a frame body and a first guide wheel assembly, the first guide wheel assembly is arranged on the frame body, and the frame body is used for being connected with the lift car;

the drive control assembly is arranged on the frame body and comprises a drive component, and the drive component is provided with a drive gear;

the first guide wheel assembly is used for being matched with a guide body so as to guide the frame body to move along the guide body; the driving gear is used for being meshed with the rack of the guide body so as to drive the rack body to move along the guide body.

2. The lift drive apparatus of claim 1, wherein the drive control assembly further comprises a mounting plate; the mounting plate is movably connected with the frame body, and at least part of the driving assembly is arranged on the mounting plate;

the mounting plate is provided with a first abutting part; the support body is provided with a second abutting portion, and the first abutting portion and the second abutting portion abut against each other along the extending direction of the guide body.

3. The lift drive apparatus of claim 1, wherein the drive control assembly further comprises a fall arrest assembly;

the anti-falling assembly comprises a speed limiter and an anti-falling gear, the speed limiter is connected with the anti-falling gear, and the anti-falling gear is meshed with the rack.

4. The lift drive apparatus of claim 1, wherein the drive control assembly further comprises a second guide wheel assembly;

the second guide wheel assembly comprises a plurality of guide wheels, the guide wheels are used for being in rolling connection with the rack, and at least one guide wheel and the driving gear are respectively arranged on the opposite sides of the rack.

5. The lift drive apparatus of claim 4, wherein the drive control assembly further comprises a stop;

the stop piece and the guide wheel are arranged on the same side of the rack, and the distance between the stop piece and the rack is larger than the distance between the rim of the guide wheel and the rack, so that the rack is stopped by the stop piece when the guide wheel fails.

6. The lift drive apparatus of claim 1, wherein the drive control assembly further comprises a plurality of trigger switches;

the trigger switches are respectively connected to the control loops of the driving assembly.

7. The lift drive apparatus of any one of claims 1 to 6, wherein the first guide wheel assembly comprises a plurality of roller sets;

the roller groups are spaced from each other and are arranged in axial symmetry relative to the rack body; each of the roller groups is disposed around at least a portion of a peripheral wall of the guide body.

8. The lift drive apparatus of claim 7, wherein the roller set includes a first roller, a second roller, and a third roller;

the first roller, the second roller and the third roller are spaced from each other to form a clamping gap among the first roller, the second roller and the third roller;

the rotation axis of the first roller is parallel to the rotation axis of the second roller, and is respectively perpendicular to the rotation axis of the third roller.

9. The lift driving apparatus of any one of claims 1 to 6, wherein the frame body is provided with a separation preventing hook for preventing the lift frame from being separated from the guide body.

10. A lift system, comprising: a guide body, a car and a lifting drive apparatus as claimed in any one of claims 1 to 9;

the guide body comprises a guide rail bracket and a rack, and the guide rail bracket is connected with the rack and extends along the same direction; the crane is followed guide rail frame liftable sets up, the car is located on the crane.

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