Horizontal impact prevention trolley for crane

Abstract

A horizontal impact prevention trolley for a crane relates to the technical field of cranes and comprises two track beams arranged at intervals, a trolley frame erected on the track beams, four traveling wheels, two lifting devices and two horizontal impact prevention devices. The trolley frame adopts an integrated diamond closed ring structure and is formed by buckling an outer ring and three inner rings, so that the structural stability and the impact resistance are enhanced. The horizontal anti-impact devices are installed on the two sides of the trolley frame and can walk along the outer sides of the track beams to limit lateral movement of the trolley frame. The axis of a winding drum of the lifting device is perpendicular to the length direction of a crane cart, horizontal impact force is dispersed through a diamond closed ring structure and a reinforcing rib plate, and local deformation is avoided. The trolley is further provided with a rope pressing device and a monitoring system, real-time monitoring is achieved, and operation safety is guaranteed. Due to the special structural design of the trolley frame, the impact force can be effectively dispersed, the horizontal impact resistance is improved, the trolley body resonance is inhibited, and the safe and stable operation of the crane trolley is ensured.

Description

Technical Field

[0001] This invention relates to the field of crane technology, and in particular to a crane trolley designed to withstand horizontal impacts. Background Technology

[0002] In the rail production workshop, several suction cups are distributed on the beam of the electromagnetic girder bridge crane. The suction cups will attract a certain number of rails. When the steel plant lifts and stacks the rails, the trolley runs at full speed, lifting the rails and hitting the wall. The purpose is to keep the ends of the rails being lifted below level. After the ends are stacked, the rails will be transferred to the rail storage warehouse area.

[0003] Traditional crane trolleys are prone to a series of problems under these working conditions, such as severe trolley shaking or even derailment, wheel bearing failure, wheel cracks, and wire rope derailment. To solve these problems, those skilled in the art urgently need to design a crane trolley resistant to horizontal impacts, suitable for use in steel mills when lifting and stacking rails, where frequent trolley starts and rail collisions cause horizontal impacts. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention discloses a crane trolley that is protected against horizontal impact.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0006] A horizontal impact trolley for a crane includes:

[0007] The track beams consist of two spaced-apart beams, which are mounted on the crane trolley.

[0008] The trolley frame is mounted on two track beams; the trolley frame is an integrated diamond-sealed ring structure formed by an outer diamond-sealed ring and three inner diamond-sealed rings interlocking with each other.

[0009] The trolley has four wheels, which are installed at the four corners of the trolley frame to enable the trolley frame to move along the track beam.

[0010] The hoisting device consists of two hoisting devices spaced apart on the trolley frame; and the axis of the hoisting device's drum is perpendicular to the axis of the crane's main trolley along its length.

[0011] There are two horizontal anti-impact devices, which are installed on both sides of the trolley frame respectively, and the horizontal anti-impact devices can travel along the outside of the corresponding track beam; the horizontal anti-impact devices limit the trolley frame from lateral displacement perpendicular to the track beam.

[0012] Preferably, the outer diamond-sealed closed ring is an outer ring structure formed by two end beams, a middle box beam, and a middle connecting beam; the three inner diamond-sealed closed rings are formed by two end beams, a middle box beam, a middle connecting beam, and two support beams located between the middle box beam and the middle connecting beam; wherein, the two inner diamond-sealed closed rings on both sides are used to support the two lifting devices respectively; a reinforcing rib is provided between the two support beams; the diamond-sealed closed ring structure and the reinforcing rib are used to quickly disperse the horizontal impact force borne by the two lifting devices to the entire trolley frame, thereby avoiding local deformation of the trolley frame.

[0013] Preferably, the horizontal shock-absorbing device includes:

[0014] The connecting seat has a right-angle bend structure. One corner of the connecting seat is fastened to the trolley frame, and the other corner is vertically downward. The vertical side of the connecting seat has a through hole.

[0015] The connecting shaft passes through the through hole of the connecting seat; and the top of the connecting shaft is equipped with an anti-detachment device.

[0016] The balance beam is rotatably connected to the bottom of the connecting shaft;

[0017] There are two horizontal wheels, which are rotatably connected to the two ends of the balance beam respectively; the two horizontal wheels are in rolling contact with the track beam.

[0018] Preferably, the track beam is provided with a travel track at the position corresponding to the horizontal wheel.

[0019] Preferably, the shaft of the connecting shaft is fitted with an annular pressure sensor, the outer ring of which is mounted on the connecting seat; when the pressure value detected by the annular pressure sensor changes abruptly, the traveling wheel is controlled to stop running.

[0020] Preferably, the through hole of the connector is a tapered hole with the small end facing upward; an adjusting pad for adjusting the height of the connecting shaft is installed on the top of the shaft.

[0021] Preferably, the trolley frame is provided with a rope-pressing device at the position corresponding to the lifting device, and the rope-pressing device includes:

[0022] The uprights are securely connected to the trolley frame.

[0023] A cantilever beam, one end of which is securely connected to a column;

[0024] The pressure roller is rotatably connected to the other end of the cantilever beam, with the bottom of the pressure roller spaced 1-2 mm from the wire rope on the lifting device.

[0025] Preferably, the system also includes a monitoring system, which comprises a CCD camera and an industrial control computer for analyzing the images captured by the CCD camera. CCD cameras are installed on the trolley frame at positions corresponding to the lifting device and the traveling wheels, and the industrial control computer is mounted on the trolley frame. The CCD camera corresponding to the lifting device is used to monitor in real time whether the lifting device experiences rope tangling; the CCD camera corresponding to the traveling wheels is used to monitor in real time whether the traveling wheels are derailed or damaged; when the industrial control computer detects an abnormal image, it issues a stop signal.

[0026] Preferably, an audible and visual alarm is installed on the track beam, and the audible and visual alarm will issue an alarm message when the industrial control computer issues a stop signal.

[0027] Preferably, the two lifting devices are synchronously driven by a first drive device; the traveling wheel at one end of the trolley frame is synchronously driven by a second drive device; the traveling wheel includes:

[0028] The wheel frame, mounted on the trolley frame, has a U-shaped structure;

[0029] The axle passes through the wheel frame and is rotatably connected to the wheel frame;

[0030] The wheel rim is located on the axle inside the groove of the wheel frame, and the wheel rim and the axle are slidably fitted by a spline; the outer circle of the wheel rim is provided with an annular groove.

[0031] There are two elastic elements, one on each side of the wheel rim, and the two elastic elements are fastened to the wheel frame.

[0032] By employing the technical solution described above, the present invention has the following beneficial effects:

[0033] (1) The frame of this invention adopts an integrated diamond closed-loop structure, which is composed of an outer diamond closed-loop ring and three inner diamond closed-loop rings interlocked. The outer diamond closed-loop ring is formed by two end beams, a middle box beam and a middle connecting beam, while the inner diamond closed-loop ring is formed by end beams, middle box beams, middle connecting beams and two support beams. In the event of a collision, the closed-loop structure can quickly transfer the impact force to the entire frame, disperse the collision energy, and effectively avoid excessive local stress that could cause deformation or cracking of the frame. At the same time, the frame is made of high-strength Q690 material and combined with the closed-loop design, which significantly improves the resistance to horizontal impact, effectively suppresses body resonance and improves the structural stability of the frame.

[0034] (2) The horizontal anti-impact devices installed on both sides of the trolley frame of the present invention can travel along the outside of the track beam, limiting the trolley frame from lateral displacement perpendicular to the track beam. The trolley frame can disperse the horizontal impact force it bears to the crane trolley through the horizontal anti-impact devices, and then the crane trolley can further disperse it to the factory building, thus protecting the entire crane. The horizontal anti-impact devices consist of a connecting seat, a connecting shaft, and horizontal wheels. The connecting seat has a right-angle bent structure and is firmly connected to the trolley frame. The connecting shaft passes through the through hole on the vertical side of the connecting seat and is connected to the bottom of the balance beam. The two ends of the balance beam are rotatably connected to the horizontal wheels, and the two horizontal wheels maintain rolling contact with the track beam. The design of the balance beam allows the horizontal wheels to dynamically adjust to adapt to the changes in the curvature and wave of the track beam, ensuring that the ends of the horizontal wheels run smoothly beside the track beam and improving the smoothness of operation. The annular pressure sensor sleeved on the connecting shaft can control the traveling wheels to stop running when a sudden change in pressure value is detected. When the crane trolley is running at full speed and suspending the rails and hitting the wall, the annular pressure sensor can detect the pressure change and lock the traveling wheels in time to prevent abnormal movement of the trolley frame. If the pressure value remains abnormal after a certain period of time, an alarm will be issued to prevent safety accidents.

[0035] (3) This invention. The structure of the traveling wheel includes a wheel frame, a wheel axle, and a wheel rim. The wheel frame has a U-shaped structure. The wheel axle passes through the wheel frame and is rotatably connected to it. The wheel rim is installed on the axle located in the groove of the wheel frame and is slidably engaged with the wheel axle through a spline, which facilitates driving the wheel axle to rotate the wheel rim. The outer circumference of the wheel rim is provided with an annular groove, which is locked onto the track beam to prevent derailment. Elastic elements are set on both sides of the wheel rim and are firmly connected to the wheel frame. When the trolley frame is subjected to horizontal impact force and causes lateral displacement, the wheel rim can slide relative to the wheel axle to avoid collision with the traveling track, prevent wheel edge damage, reduce the risk of derailment, and extend the service life of the traveling wheel.

[0036] (4) The rope pressing device added to the trolley frame at the position corresponding to the lifting device in this invention consists of a column, a cantilever beam, and a pressure roller. The column is vertically installed on the trolley frame, one end of the cantilever beam is fixedly connected to the column, and the other end is rotatably connected to the pressure roller. The bottom of the pressure roller maintains a 1-2 mm gap distance with the wire rope of the lifting device. When the lifting device is subjected to horizontal impact force, it can prevent the wire rope on the drum from derailing, avoid rope tangling, and under normal circumstances, it does not contact the wire rope, reducing wear and extending the service life of the wire rope.

[0037] (5) The monitoring system equipped with this invention includes a CCD camera and an industrial control computer, which are respectively installed on the trolley frame at the positions corresponding to the lifting device and the traveling wheels. The CCD camera corresponding to the lifting device monitors in real time whether there is rope tangling, and the CCD camera corresponding to the traveling wheels monitors whether there is derailment or damage. The industrial control computer analyzes the images frame by frame and judges the abnormality with the help of visual algorithms. When an abnormal image is detected, a stop signal is issued. The audible and visual alarm installed on the track beam alarms synchronously when the industrial control computer issues a stop signal, which makes it easy for operators to detect abnormalities in time, quickly check and eliminate hidden dangers, and effectively avoid serious accidents. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of the present invention;

[0039] Figure 2 This is a side view of the present invention;

[0040] Figure 3 This is a schematic diagram of the small vehicle frame;

[0041] Figure 4 for Figure 3 Sectional view of AA;

[0042] Figure 5 for Figure 3 Sectional view of BB;

[0043] Figure 6 This is a schematic diagram of the horizontal impact protection device.

[0044] Figure 7 This is a side view of a horizontal shock absorber.

[0045] Figure 8 This is a schematic diagram of the rope pressing device;

[0046] Figure 9 This is a top view of the rope-pressing device;

[0047] Figure 10 A schematic diagram of the mounting structure of the first drive unit and the second drive unit;

[0048] Figure 11 This is a schematic diagram of the walking wheel.

[0049] In the diagram: 1. Track beam; 2. Trolley frame; 2-1. End beam; 2-2. Intermediate box beam; 2-3. Intermediate connecting beam; 2-4. Support beam; 2-5. Reinforcing rib; 3. Lifting device; 4. Horizontal anti-impact device; 4-1. Connecting seat; 4-2. Connecting shaft; 4-3. Balance beam; 4-4. Horizontal wheel; 4-5. Traveling track; 4-6. Ring pressure sensor; 4-7. Adjusting pad; 5. Rope pressing device; 5-1. Column; 5-2. Cantilever beam; 5-3. Pressure roller; 6. CCD camera; 7. Industrial control computer; 8. Audible and visual alarm; 9. First drive device; 10. Second drive device; 11. Traveling wheel; 11-1. Wheel rim; 11-2. Wheel axle; 11-3. Elastic element; 11-4. Wheel frame. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0051] In the description of this invention, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0053] Example 1:

[0054] Combined with appendix Figures 1-5 A horizontal impact-resistant trolley for a crane includes a track beam 1, a trolley frame 2, a lifting device 3, and a horizontal impact-resistant device 4. The track beam 1 serves as the traveling base for the trolley frame 2, and there are two track beams spaced apart. These two track beams 1 are installed on the crane trolley, and the traveling direction of the trolley frame 2 is perpendicular to the traveling direction of the crane trolley.

[0055] The trolley frame 2 is mounted on the two aforementioned track beams 1. The trolley frame 2 adopts an integrated diamond-sealed closed-loop structure, specifically consisting of an outer diamond-sealed closed-loop ring and three interlocking inner diamond-sealed closed-loop rings. At each of the four corners of the trolley frame 2, a traveling wheel 11 is installed. The main function of these traveling wheels 11 is to allow the trolley frame 2 to move smoothly along the track beams 1. Simultaneously, a track is provided on the top of the track beams 1 for the traveling wheels 11 to travel on. Furthermore, two lifting devices 3 are spaced apart on the trolley frame 2, with the drum axis of the lifting device 3 perpendicular to the length axis of the crane trolley.

[0056] Specifically, as shown in the appendix Figures 3-5 As shown, the outer diamond-shaped closed ring is an outer ring structure formed by two end beams 2-1, one intermediate box beam 2-2, and one intermediate connecting beam 2-3. The three inner diamond-shaped closed rings are formed by two end beams 2-1, one intermediate box beam 2-2, one intermediate connecting beam 2-3, and two support beams 2-4 located between the intermediate box beam 2-2 and the intermediate connecting beam 2-3. The two inner diamond-shaped closed rings on either side support two lifting devices 3. One end of each lifting device 3 is tightly connected to an end beam 2-1, and the other end is correspondingly and securely connected to the adjacent support beam 2-4. To enhance structural stability, a reinforcing rib 2-5 is provided between the two support beams 2-4, and the longitudinal axis of the reinforcing rib 2-5 is parallel to the longitudinal axis of the trolley frame 2.

[0057] This closed-loop structure plays a crucial role. Firstly, it disperses collision energy. Upon impact, the closed-loop structure rapidly transfers the impact force to the entire chassis, effectively preventing excessive localized stress that could lead to chassis deformation or cracking. Secondly, it exhibits strong resistance to deformation. Because chassis 2 is made of high-strength Q690 material and incorporates a closed-loop design, its resistance to horizontal impacts is significantly improved, effectively suppressing chassis resonance and thus enhancing the structural stability of the chassis.

[0058] On both sides of the trolley frame 2, horizontal anti-impact devices 4 are installed, which can travel along the outer side of the corresponding track beam 1. Their main function is to limit lateral displacement of the trolley frame 2 perpendicular to the track beam 1. Simultaneously, the trolley frame 2 can distribute the horizontal impact force it bears to the crane trolley via the horizontal anti-impact devices 4, and then the crane trolley further distributes this impact force to the factory building, thus protecting the entire crane.

[0059] In actual use, the electromagnetic lifting beam is lifted by two lifting devices 3, and then the electromagnetic lifting beam magnetically attracts multiple steel rails. When the ends of the steel rails are not aligned, the crane trolley runs at full speed, lifting the steel rails and hitting them against the wall. The purpose is to keep the ends of the steel rails being transported below aligned. After the ends are aligned, the steel rails will be transferred to the steel rail storage warehouse area.

[0060] Example 2:

[0061] Combined with appendix Figure 1 , 6 As shown in Figures 7, 10, and 11, a crane trolley designed to prevent horizontal impacts, based on Embodiment 1, further refines the design of the horizontal impact protection device 4. This horizontal impact protection device 4 mainly consists of a connecting seat 4-1, a connecting shaft 4-2, and a horizontal wheel 4-4, as shown in the attached figures. Figure 6 and 7 As shown. The connecting seat 4-1 has a right-angle bend structure, with one corner end fastened to the trolley frame 2, and the other corner end pointing vertically downwards. A through hole is provided on the vertical side of the connecting seat 4-1, through which the connecting shaft 4-2 passes. An anti-detachment device is provided on the top of the connecting shaft 4-2, which can be in the form of a snap ring or a nut.

[0062] A balance beam 4-3 is connected to the bottom of the connecting shaft 4-2, and the middle of the balance beam 4-3 is rotatably connected to the connecting shaft 4-2. Horizontal wheels 4-4 are rotatably connected to both ends of the balance beam 4-3, and the two horizontal wheels 4-4 maintain rolling contact with the track beam 1. The purpose of the balance beam 4-3 is to allow the two horizontal wheels 4-4 to be dynamically adjusted via the balance beam 4-3, thereby adapting to changes in the lateral curvature and undulation of the track beam 1, and ensuring that the ends of the horizontal wheels 4-4 can run smoothly beside the track beam 1.

[0063] Furthermore, a travel track 4-5 is provided on the track beam 1 at the position corresponding to the horizontal wheel 4-4, and the horizontal wheel 4-4 can travel along the travel track 4-5, which helps to improve the smoothness of the operation of the horizontal wheel 4-4.

[0064] In addition, a ring pressure sensor 4-6 is also fitted onto the shaft of connecting shaft 4-2, with its outer ring mounted on connecting seat 4-1. When the ring pressure sensor 4-6 detects a sudden change in pressure, it can control the traveling wheel 11 to stop running. When the crane trolley is running at full speed, suspending the rails and impacting the wall, the detection value of one of the two ring pressure sensors 4-6 will surge, while the other will drop. At this time, it is necessary to lock the traveling wheel 11 to prevent abnormal movement of the trolley frame 2. After the pressure values ​​of the two ring pressure sensors 4-6 return to normal, the traveling wheel 11 resumes normal operation. If, after a certain period of time, such as 2 seconds, the detection values ​​of the two ring pressure sensors 4-6 are still abnormal, it indicates that the traveling wheel 11 may have derailed, been damaged, or that the trolley frame 2 has experienced significant lateral displacement. In this case, an alarm should be issued to prevent a safety accident.

[0065] Furthermore, the through hole of the connecting seat 4-1 is designed as a tapered hole with the smaller end facing upwards, and an adjusting shim 4-7 is installed on the top of the connecting shaft 4-2 to adjust its height. The adjusting shim 4-7 allows the height of the connecting shaft 4-2 to be adjusted, ensuring a tight fit between the connecting shaft 4-2 and the connecting seat 4-1, thereby enhancing the horizontal impact resistance of the horizontal shock absorber 4. In addition, this design facilitates the periodic replacement of the connecting shaft 4-2 and the horizontal wheel 4-4, preventing deformation of the connecting shaft 4-2 or damage to the horizontal wheel 4-4 due to prolonged use, which could lead to a decrease or even failure of the horizontal impact resistance of the horizontal shock absorber 4. This design ensures effective, convenient, and quick maintenance, avoiding disruption to factory production schedules.

[0066] It is worth noting that the distance between the vertical side of the connecting seat 4-1 and the trolley frame 2 can be adjusted by adding or removing shims between the connecting seat 4-1 and the trolley frame 2, thereby ensuring that the horizontal wheel 4-4 can make effective contact with the corresponding travel track 4-5, thus improving the resistance to horizontal impact.

[0067] To ensure the stability of the lifting of the steel rails and the overall operation of the trolley frame 2, this design includes, as shown in the attached... Figure 10 As shown, the two lifting devices 3 are synchronously driven by the first drive device 9. The traveling wheel 11 at one end of the trolley frame 2 is synchronously driven by the second drive device 10, while the traveling wheel 11 at the other end of the trolley frame 2 is a passive wheel.

[0068] Specifically, the structure of the traveling wheel 11 driven by the second drive unit 10 includes a wheel frame 11-4, a wheel axle 11-2, and a wheel rim 11-1, as shown in the attached figure. Figure 11As shown. The wheel frame 11-4 is mounted on the trolley frame 2 and has a U-shaped structure. The wheel axle 11-2 passes through the wheel frame 11-4 and is rotatably connected to it. The wheel rim 11-1 is mounted on the axle of the wheel axle 11-2 located in the groove of the wheel frame 11-4, and the wheel rim 11-1 and the wheel axle 11-2 are connected by a spline sliding fit, which facilitates the rotation of the wheel rim 11-1 by driving the wheel axle 11-2. An annular groove is provided on the outer circumference of the wheel rim 11-1, so that the wheel rim 11-1 can be locked onto the track of the track beam 1, further preventing derailment.

[0069] There are two elastic elements 11-3, one on each side of the wheel rim 11-1, and they are correspondingly and securely connected to the wheel frame 11-4. When the trolley frame 2 is subjected to a horizontal impact force, it may experience slight lateral displacement. At this time, the wheel rim 11-1 can slide relative to the axle 11-2, thereby preventing the wheel rim 11-1 from colliding with the travel track due to lateral displacement and effectively preventing damage to the wheel edge of the wheel rim 11-1. At the same time, because the wheel rim 11-1 has the ability to slide relative to the axle 11-2, the travel wheel 11 can better cope with the horizontal bending deformation that may occur on the track beam 1, further reducing the risk of derailment and extending the service life of the travel wheel 11.

[0070] It should be noted that the structure of the passive wheel 11 can be consistent with the structure of the drive wheel described above. However, for the passive wheel, the axle 11-2 can adopt a smooth shaft design because the passive wheel does not need to be connected to the drive device.

[0071] Example 3:

[0072] Combined with appendix Figures 8-9 As shown, based on Embodiment 1 or 2, a crane trolley designed to withstand horizontal impacts has a rope-pressing device 5 added to the trolley frame 2 at the position corresponding to the lifting device 3. This rope-pressing device 5 mainly consists of a column 5-1, a cantilever beam 5-2, and a pressure roller 5-3. The column 5-1 is vertically mounted on the trolley frame 2 and can be configured as two spaced-apart units to improve overall stability.

[0073] One end of the cantilever beam 5-2 is securely connected to the column 5-1. Similarly, two cantilever beams 5-2 are provided, each securely connected to one of the two columns 5-1. A pressure roller 5-3 is rotatably connected to the end of the cantilever beam 5-2 facing away from the column 5-1. The bottom of the pressure roller 5-3 maintains a 1-2 mm gap from the wire rope on the lifting device 3. The main function of the pressure roller 5-3 is to prevent the wire rope on the drum of the lifting device 3 from slipping off the groove when the lifting device 3 is subjected to horizontal impact force, thus avoiding rope tangling. Under normal circumstances, the pressure roller 5-3 will not contact the wire rope, which reduces wear on the wire rope and extends its service life.

[0074] Example 4:

[0075] Combined with appendix Figures 1-2 As shown, based on any of the embodiments one to three, a crane trolley designed to withstand horizontal impacts is further equipped with a monitoring system. This monitoring system mainly includes a CCD camera 6 and an industrial control computer 7 for analyzing the images captured by the CCD camera. Specifically, CCD cameras 6 are installed on the trolley frame 2 at positions corresponding to the lifting device 3 and the traveling wheels, while the industrial control computer 7 is mounted on the trolley frame 2. The CCD camera 6 corresponding to the lifting device 3 is mainly used for real-time monitoring of whether the lifting device 3 experiences rope tangling; the CCD camera 6 corresponding to the traveling wheels is used for real-time monitoring of whether the traveling wheels 11 are derailed or damaged. Once the industrial control computer 7 detects an abnormal image, it will issue a stop signal.

[0076] The industrial control computer 7 can analyze the images transmitted back by the CCD camera 6 frame by frame, and use existing visual algorithms to determine whether the hoisting device 3 has rope tangling, and whether the traveling wheel 11 has derailed or been damaged, thereby further improving the overall safety performance of the crane.

[0077] Furthermore, an audible and visual alarm 8 is installed on the track beam 1. When the industrial control computer 7 issues a stop signal, the audible and visual alarm 8 will simultaneously issue an alarm message. This allows operators to promptly detect abnormalities, quickly conduct inspections and eliminate potential hazards, and effectively prevent serious accidents from occurring.

[0078] The parts of this invention not described in detail are prior art. It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to encompass all changes falling within the meaning and scope of equivalents within this invention.

Claims

1. A crane trolley designed to withstand horizontal impacts, characterized in that, include: Track beams (1), which are two spaced apart, are installed on the crane trolley; The trolley frame (2) is mounted on two track beams (1); the trolley frame (2) is an integrated diamond closed ring structure formed by an outer diamond closed ring and three inner diamond closed rings interlocking with each other. Four wheels (11) are provided and are installed at the four corners of the trolley frame (2); they are used to enable the trolley frame (2) to travel along the track beam (1); The hoisting device (3) consists of two that are spaced apart on the trolley frame (2); and the drum axis of the hoisting device (3) is perpendicular to the axis of the crane trolley in the length direction. Two horizontal anti-impact devices (4) are installed on both sides of the trolley frame (2) respectively, and the horizontal anti-impact devices (4) can travel along the outside of the corresponding track beam (1); the horizontal anti-impact devices (4) restrict the trolley frame (2) from lateral displacement perpendicular to the track beam (1).

2. The crane trolley with horizontal impact protection as described in claim 1, characterized in that: The outer diamond-sealed ring is an outer ring structure formed by two end beams (2-1), a middle box beam (2-2), and a middle connecting beam (2-3); the three inner diamond-sealed rings are formed by two end beams (2-1), a middle box beam (2-2), a middle connecting beam (2-3), and two support beams (2-4) located between the middle box beam (2-2) and the middle connecting beam (2-3); the two inner diamond-sealed rings located on both sides are used to support the two lifting devices (3) respectively; a reinforcing rib (2-5) is provided between the two support beams (2-4); the diamond-sealed ring structure and the reinforcing rib (2-5) quickly disperse the horizontal impact force borne by the two lifting devices (3) to the entire trolley frame (2), avoiding local deformation of the trolley frame (2).

3. The crane trolley for preventing horizontal impact as described in claim 1, characterized in that, The horizontal shock-absorbing device (4) includes: The connecting seat (4-1) has a right-angle bent structure. One corner of the connecting seat (4-1) is fastened to the trolley frame (2), and the other corner is vertically downward. The vertical side of the connecting seat (4-1) is provided with a through hole. The connecting shaft (4-2) passes through the through hole of the connecting seat (4-1); and the top of the connecting shaft (4-2) is provided with an anti-detachment device; The balance beam (4-3) is rotatably connected to the bottom of the connecting shaft (4-2); There are two horizontal wheels (4-4), which are rotatably connected to the two ends of the balance beam (4-3); the two horizontal wheels (4-4) are in rolling contact with the track beam (1).

4. The crane trolley with horizontal impact protection as described in claim 3, characterized in that: The track beam (1) is provided with a traveling track (4-5) at the position corresponding to the horizontal wheel (4-4).

5. The crane trolley with horizontal impact protection as described in claim 3, characterized in that: The shaft of the connecting shaft (4-2) is fitted with an annular pressure sensor (4-6), the outer ring of which is mounted on the connecting seat (4-1); when the pressure value detected by the annular pressure sensor (4-6) suddenly changes, the walking wheel (11) is controlled to stop running.

6. The crane trolley with horizontal impact protection as described in claim 3, characterized in that: The through hole of the connecting seat (4-1) is a tapered hole with the small end facing upward; the top of the connecting shaft (4-2) is equipped with an adjusting pad (4-7) to adjust its height.

7. The crane trolley for preventing horizontal impact as described in claim 1, characterized in that, The trolley frame (2) is provided with a rope pressing device (5) at the position corresponding to the lifting device (3), and the rope pressing device (5) includes: The upright (5-1) is securely connected to the trolley frame (2); The cantilever beam (5-2) is fastened at one end to the column (5-1); The pressure roller (5-3) is rotatably connected to the other end of the cantilever beam (5-2), and the bottom of the pressure roller (5-3) is 1-2 mm away from the wire rope on the lifting device (3).

8. The crane trolley with horizontal impact protection as described in any one of claims 1 to 7, characterized in that, It also includes a monitoring system, which includes a CCD camera (6) and an industrial control computer (7) for analyzing the images captured by the CCD camera; wherein, the trolley frame (2) is equipped with a CCD camera (6) at the position corresponding to the lifting device (3) and the traveling wheel, and the industrial control computer (7) is installed on the trolley frame (2); the CCD camera (6) corresponding to the lifting device (3) is used to monitor in real time whether the lifting device (3) has rope tangling; the CCD camera (6) corresponding to the traveling wheel is used to monitor in real time whether the traveling wheel (11) has derailed or been damaged; when the industrial control computer (7) detects an abnormal image, it issues a stop signal.

9. The crane trolley with horizontal impact protection as described in claim 8, characterized in that: An audible and visual alarm (8) is installed on the track beam (1). When the industrial control computer (7) issues a stop signal, the audible and visual alarm (8) issues an alarm message.

10. The crane trolley for preventing horizontal impact as described in claim 1, characterized in that, The two lifting devices (3) are synchronously driven by the first drive device (9); the traveling wheel (11) at one end of the trolley frame (2) is synchronously driven by the second drive device (10); the traveling wheel (11) includes: The wheel frame (11-4) is mounted on the trolley frame (2) and has a U-shaped structure; The axle (11-2) passes through the wheel frame (11-4) and is rotatably connected to the wheel frame (11-4); The wheel rim (11-1) is located on the axle (11-2) inside the groove of the wheel frame (11-4). The wheel rim (11-1) and the axle (11-2) are slidably fitted by a spline. The outer circle of the wheel rim (11-1) is provided with an annular groove. There are two elastic elements (11-3), which are respectively located on both sides of the wheel rim (11-1). The two elastic elements (11-3) are fastened to the wheel frame (11-4).

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