Deviation rectifying device for crane

Abstract

The utility model belongs to the technical field of cranes, and particularly relates to a deviation rectifying device for a crane, which comprises guide rails and a frame, the frame is mounted above the two guide rails, and deviation rectifying devices are respectively arranged on the left side and the right side of the frame. According to the deviation rectifying device for the crane, after the wheels deviate in the guide rails, the sliding rods on one sides of the wheel carriers make contact with the inner walls of the guide rails, so that the sliding rods are pushed to slide towards the interiors of the sliding sleeves and extrude springs till the electric contacts at the inner ends of the sliding rods make contact with the electric contacts on the inner walls of the sliding sleeves, and electric signal alarming is sent out, so that workers find the deviation of a cart in time; after deviation occurs, a driving motor is started to drive a lead screw in a transmission part to rotate in a fixed bearing, so that a threaded sliding sleeve on the lead screw, a connecting rod at the bottom of the threaded sliding sleeve and a vertical beam at the bottom of the threaded sliding sleeve are driven to reversely move towards the deviation side along a limiting sliding groove, and the vertical beam and a wheel carrier at the bottom of the vertical beam are pulled until two electric contacts are separated; and the electric signal is stopped, so that offset correction is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a deviation correcting device for cranes. Background Art

[0002] A crane refers to a multi-action lifting machinery that can vertically lift and horizontally move heavy objects within a certain range. It is also called an overhead crane, an overhead crane, or a hoist. During the use of the crane, the wheels of the crane have different speeds, which makes it very easy for the wheels to bite the rails when the crane trolley is moving. This not only affects the stable operation of the crane, but also brings safety hazards to production work.

[0003] For example, Chinese patent publication No. CN217173013U discloses a deviation correction device for a crane trolley wheel assembly. When in use, the deviation correction device for the crane trolley wheel assembly has the effect of preventing the two sides of the first crane trolley wheel from skewing through the arrangement of the first deviation correction wheel and the first limiting rail. Through the coordinated arrangement of the support shaft, the support square plate and the single-sided arc support plate, the connecting long rod can be located in the first support long groove during use, and the second limiting long rod can be located in the first support long groove, thereby keeping the first deviation correction wheel and the first limiting rail rotating when the crane moves. The function of connection achieves the purpose of convenient installation. Through the setting of the first limiting long plate, the correction device for the crane trolley wheel group has the effect of preventing the rotation between the part of the hollow limiting column and the first limiting long plate. Through the coordinated setting of the first supporting long plate, the second supporting long plate and the first limiting column, the edge of the first correcting wheel can be located in the second limiting track during use, and the limiting shaft can enter into the part of the hollow limiting column, thereby playing a role of supporting the edge and bottom of the first correcting wheel, and then playing a role of preventing the first correcting wheel from tipping over due to uneven force.

[0004] However, the deviation correction device for the crane trolley wheel assembly in the above application gradually deviates during use, and the device is not provided with a corresponding warning mechanism, which is not convenient for timely deviation correction. Therefore, there are certain limitations.

[0005] For this reason, we urgently need to provide a deviation correction device for crane. Utility Model Content

[0006] The purpose of the utility model is to provide a deviation correction device for a crane, so as to solve the problem that the deviation correction device for a crane trolley wheel assembly proposed in the above-mentioned background technology gradually deviates during use, and the device is not provided with a corresponding warning mechanism, which makes it inconvenient to correct the deviation in time.

[0007] To achieve the above purpose, the utility model provides the following technical solutions: a deviation correction device for a crane, comprising guide rails and a frame, wherein the frame is installed above two guide rails, and the deviation correction devices are respectively arranged on the left and right sides of the frame.

[0008] The deviation correction device comprises an alarm unit, a deviation correction unit and a braking unit.

[0009] The alarm unit includes a vertical beam, a wheel frame, a wheel, and an alarm component. The vertical beam is installed on the bottom left side of the frame, the wheel frame is fixedly connected to the bottom of the vertical beam, the wheel is rotatably connected to the inside of the wheel frame, and two groups of alarm components are respectively installed on the left and right sides of the wheel.

[0010] A further improvement is that the alarm component includes a sleeve, a spring, a sliding rod, and an electric contact. The sleeve is fixedly connected to the left outer surface of the wheel frame, the spring is installed inside the sleeve, the sliding rod is fixedly connected to the outer end of the spring and is slidably connected to the inner wall of the sleeve, and the two electric contacts are respectively installed on the inner wall of the sleeve and the inner end of the sliding rod. When the wheel deviates inside the guide rail, the sliding rod on one side of the wheel frame contacts the inner wall of the guide rail, thereby pushing the sliding rod to slide inside the sleeve and squeeze the spring until the electric contact at the inner end of the sliding rod contacts the electric contact on the inner wall of the sleeve and sends an electric signal alarm, so that the workers can discover the deviation of the cart in time.

[0011] A further improvement is that the correction unit includes a drive motor, a transmission member, and a connecting rod. The drive motor is installed on the inner left side of the frame, the transmission member is connected to the output end of the drive motor, and the connecting rod is fixedly connected to the bottom of the transmission member, and its bottom is connected to the vertical beam.

[0012] A further improvement is that limiting slots are respectively provided on the left and right sides of the bottom of the frame, and fixed bearings are respectively installed on the outer walls of the limiting slots. The transmission member is rotatably connected to the inside of the fixed bearing, and the connecting rod is slidably connected to the inner wall of the limiting slot. When the offset occurs, the drive motor is started to drive the screw in the transmission member to rotate inside the fixed bearing, thereby driving the threaded sleeve on the screw and the connecting rod at its bottom and the vertical beam at its bottom to move in the opposite direction of the offset side along the limiting slot, thereby pulling the vertical beam and the wheel frame at its bottom until the two electrical contacts are separated and the electrical signal stops being sent, thereby completing the correction of the offset.

[0013] A further improvement is that the brake unit includes an electric lifting rod and a brake pad, the electric lifting rod is installed inside the vertical beam, and the brake pad is fixedly connected to the bottom of the electric lifting rod.

[0014] A further improvement is that an installation compartment is opened inside the bottom of the vertical beam, the electric lifting rod is installed inside the installation compartment, and its bottom extends into the interior of the wheel, the brake pad is tightly attached to the top wall of the wheel, and when the deviation cannot be corrected, the two electrical contacts continue to send electrical signals, the electric lifting rod is started, pushing the brake pad down to contact the wheel, and the truck is braked to stop in time to avoid serious safety accidents.

[0015] A further improvement is that a controller is installed on the front side of the vertical beam on the left side, and the correction device is electrically connected to the controller, so that the overall operation of the device is controlled by the controller.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The crane uses a deviation correction device. When the wheel deviates inside the guide rail, the slide bar on one side of the wheel frame contacts the inner wall of the guide rail, thereby pushing the slide bar to slide inside the sleeve and squeeze the spring until the electric contact at the inner end of the slide bar contacts the electric contact on the inner wall of the sleeve and sends out an electrical signal alarm, so that workers can detect the deviation of the trolley in time.

[0018] 2. The crane uses a deviation correction device. When deviation occurs, the drive motor is started to drive the screw in the transmission part to rotate inside the fixed bearing, thereby driving the threaded sleeve on the screw, the connecting rod at its bottom, and the vertical beam at its bottom to move in the opposite direction of the deviation side along the limiting slide groove, thereby pulling the vertical beam and the wheel frame at its bottom until the two electrical contacts are separated and the electrical signal stops being sent, thereby completing the correction of the deviation.

[0019] 3. The crane is equipped with a deviation correction device. When the deviation cannot be corrected, the two electrical contacts continue to send electrical signals, the electric lifting rod is activated, and the brake pads are pushed down to contact the wheels, so that the trolley is braked and stopped in time to avoid serious safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the alarm unit of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the correction unit of the utility model;

[0023] Figure 4 It is a schematic diagram of the cross-sectional disassembly structure of the brake unit of the utility model.

[0024] In the figure: 1. guide rail; 2. frame; 301. vertical beam; 302. wheel frame; 303. wheel; 304. alarm component; 3041. sliding sleeve; 3042. spring; 3043. sliding rod; 3044. electric contact; 305. driving motor; 306. transmission part; 307. connecting rod; 308. fixed bearing; 309. electric lifting rod; 310. brake pad; 4. controller. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A deviation correction device for a crane comprises a guide rail 1 and a frame 2. The frame 2 is installed above two guide rails 1. The left and right sides of the frame 2 are respectively provided with deviation correction devices.

[0029] The deviation correction device comprises an alarm unit and a deviation correction unit.

[0030] The alarm unit includes a vertical beam 301, a wheel frame 302, a wheel 303, and an alarm component 304. The vertical beam 301 is installed on the bottom left side of the frame 2, the wheel frame 302 is fixedly connected to the bottom of the vertical beam 301, and the wheel 303 is rotatably connected to the inside of the wheel frame 302. Two sets of alarm components 304 are respectively installed on the left and right sides of the wheel 303.

[0031] The alarm assembly 304 includes a sleeve 3041, a spring 3042, a slide bar 3043, and an electric contact 3044. The sleeve 3041 is fixedly connected to the left outer surface of the wheel frame 302, the spring 3042 is installed inside the sleeve 3041, the slide bar 3043 is fixedly connected to the outer end of the spring 3042, and is slidably connected to the inner wall of the sleeve 3041, and two electric contacts 3044 are respectively installed on the inner wall of the sleeve 3041 and the inner end of the slide bar 3043. When the wheel 303 deviates inside the guide rail 1, the slide bar 3043 on one side of the wheel frame 302 contacts the inner wall of the guide rail 1, thereby pushing the slide bar 3043 to slide inside the sleeve 3041 and squeeze the spring 3042 until the electric contact 3044 at the inner end of the slide bar 3043 contacts the electric contact 3044 on the inner wall of the sleeve 3041 and sends an electric signal alarm, so that the workers can find the deviation of the cart in time.

[0032] The correction unit includes a drive motor 305, a transmission member 306, and a connecting rod 307. The drive motor 305 is installed on the inner left side of the frame 2, the transmission member 306 is connected to the output end of the drive motor 305, and the connecting rod 307 is fixedly connected to the bottom of the transmission member 306, and its bottom is connected to the vertical beam 301.

[0033] The left and right sides of the bottom of the frame 2 are respectively provided with limit slide grooves, and the outer walls of the limit slide grooves are respectively installed with fixed bearings 308, the transmission member 306 is rotatably connected to the inside of the fixed bearing 308, and the connecting rod 307 is slidably connected to the inner wall of the limit slide groove. When the offset occurs, the drive motor 305 is started to drive the screw in the transmission member 306 to rotate inside the fixed bearing 308, thereby driving the threaded sleeve on the screw and the connecting rod 307 at its bottom and the vertical beam 301 at its bottom to move in the opposite direction of the offset side along the limit slide groove, thereby pulling the vertical beam 301 and the wheel frame 302 at its bottom until the two electrical contacts 3044 are separated and the electrical signal stops being sent, thereby completing the correction of the offset.

[0034] A controller 4 is installed on the front side of the left vertical beam 301 . The deviation correction device is electrically connected to the controller 4 , and the overall operation of the device is controlled by the controller 4 .

[0035] Embodiment 2:

[0036] On the basis of the first embodiment, the deviation correction device includes a brake unit, which includes an electric lifting rod 309 and a brake pad 310 . The electric lifting rod 309 is installed inside the vertical beam 301 , and the brake pad 310 is fixedly connected to the bottom of the electric lifting rod 309 .

[0037] An installation compartment is provided inside the bottom of the vertical beam 301, and an electric lifting rod 309 is installed inside the installation compartment, and its bottom extends into the interior of the wheel 303. The brake pad 310 is tightly attached to the top wall of the wheel 303. When the deviation cannot be corrected, the two electrical contacts 3044 continue to send electrical signals, and the electric lifting rod 309 is started to push the brake pad 310 down to contact the wheel 303, so that the truck is braked and stopped in time to avoid serious safety accidents.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A deviation correction device for a crane, comprising a guide rail (1) and a frame (2), wherein the frame (2) is installed above two guide rails (1), and is characterized in that: The left and right sides of the frame (2) are respectively provided with deviation correction devices; The deviation correction device includes an alarm unit, a deviation correction unit and a brake unit; The alarm unit comprises a vertical beam (301), a wheel frame (302), a wheel (303), and an alarm assembly (304); the vertical beam (301) is installed on the left side of the bottom of the vehicle frame (2); the wheel frame (302) is fixedly connected to the bottom of the vertical beam (301); the wheel (303) is rotatably connected to the inside of the wheel frame (302); and two groups of the alarm assemblies (304) are respectively installed on the left and right sides of the wheel (303).

2. A deviation-correcting device for a crane according to claim 1, characterized in that: The alarm component (304) comprises a sleeve (3041), a spring (3042), a slide bar (3043), and an electric contact (3044); the sleeve (3041) is fixedly connected to the left outer surface of the wheel frame (302); the spring (3042) is installed inside the sleeve (3041); the slide bar (3043) is fixedly connected to the outer end of the spring (3042) and is slidably connected to the inner wall of the sleeve (3041); and the two electric contacts (3044) are respectively installed on the inner wall of the sleeve (3041) and the inner end of the slide bar (3043).

3. A deviation-correcting device for a crane according to claim 1, characterized in that: The deviation correction unit comprises a driving motor (305), a transmission member (306), and a connecting rod (307); the driving motor (305) is installed on the inner left side of the frame (2); the transmission member (306) is connected to the output end of the driving motor (305); the connecting rod (307) is fixedly connected to the bottom of the transmission member (306), and the bottom of the connecting rod (307) is connected to the vertical beam (301).

4. A deviation-correcting device for a crane according to claim 3, characterized in that: The left and right sides of the bottom of the frame (2) are respectively provided with limit slide grooves, and the outer walls of the limit slide grooves are respectively installed with fixed bearings (308), the transmission member (306) is rotatably connected to the inside of the fixed bearing (308), and the connecting rod (307) is slidably connected to the inner wall of the limit slide groove.

5. The deviation correcting device for a crane according to claim 1, characterized in that: The brake unit comprises an electric lifting rod (309) and a brake pad (310), wherein the electric lifting rod (309) is installed inside the vertical beam (301), and the brake pad (310) is fixedly connected to the bottom of the electric lifting rod (309).

6. A deviation-correcting device for a crane according to claim 5, characterized in that: An installation compartment is provided inside the bottom of the vertical beam (301), the electric lifting rod (309) is installed inside the installation compartment, and its bottom extends into the inside of the wheel (303), and the brake pad (310) is closely attached to the top wall of the wheel (303).

7. The deviation-correcting device for a crane according to claim 1, characterized in that: A controller (4) is installed on the front side of the vertical beam (301) on the left side, and the deviation correction device is electrically connected to the controller (4).

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