Running groove detection device and travelling crane
By designing a trough detection device during driving, using limit pressing rollers and limit switches to detect the trough phenomenon of rope running, the fracture and safety risks caused by rope running in driving are solved, and the effect of improving safety is achieved.
Patent Information
- Application Number
- CN202421754394.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-24
AI Technical Summary
The ropes in driving may run troughs, resulting in rope breakage and increased safety risks.
A groove detection device is designed, including a bracket, a limiting roller, a first limit switch and a second limit switch. The limit pressure roller can move vertically and abut against the first limit switch to detect the phenomenon of light shifting; the second limit switch detects the phenomenon of heavy shifting.
The trench running detection device can promptly detect whether the rope has trench running phenomenon, reduce the risk of breakage caused by the rope trench running, and improve safety.
Smart Images
Figure CN222979043U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of engineering equipment, and particularly relates to a running groove detection device and a traveling crane. Background Art
[0002] The traveling crane has the advantages of high load capacity, high stability and excellent adaptability, and is widely used in the ore mining industry.
[0003] The traveling crane drum and the traveling crane trolley are important components of the traveling crane. Among them, the traveling crane drum is wound with a rope, and the traveling crane drum rotates to adjust the length of the rope to suspend heavy objects. The traveling crane trolley can move along the traveling crane track, that is, the traveling crane trolley has a linear movement degree of freedom. The traveling crane drum is arranged on the traveling crane trolley to carry the suspended heavy objects.
[0004] The rope may run off the groove on the traveling crane drum (that is, the rope deviates from the predetermined winding groove). There are two main forms of the running-off phenomenon: First, slight groove jumping, which generally means that the rope only slightly jumps up and deviates from the predetermined groove, resulting in partial overlap of the rope; Second, severe groove jumping, which generally means that the rope is thrown out of the traveling crane drum.
[0005] When the rope overlaps, the friction will increase, resulting in an increased risk of rope breakage. Especially when severe groove jumping occurs, the heavy object will suddenly lose support, and the safety risk is extremely high. Content of the Utility Model
[0006] The utility model provides a running groove detection device and a traveling crane for detecting whether the rope in the traveling crane runs off the groove and reducing the safety risk.
[0007] One aspect of the utility model provides a running groove detection device, which includes a bracket, a limit roller, a first limit switch and a second limit switch; the bracket is located on both sides of the limit roller, and both ends of the limit roller are respectively connected to the brackets on both sides; the first limit switch and the second limit switch are arranged on each side of the bracket, and the second limit switch is axially far away from the limit roller relative to the first limit switch; the limit roller can move vertically and abut against the first limit switch.
[0008] In an optional solution of the present application, the bracket includes a fixed rod, an adjusting rod and an adjusting connection structure; the first limit switch and the second limit switch are both arranged on the adjusting rod, and the end of the limit roller is connected to the adjusting rod; the adjusting rod is connected to the fixed rod through the adjusting connection structure and can adjust the vertical position relative to the fixed rod to change the vertical positions of the limit roller, the first limit switch and the second limit switch.
[0009] In an alternative embodiment of the present application, the adjusting rod is provided with a first mounting groove and a second mounting groove; the first limit switch is located in the first mounting groove, and the second limit switch is located in the second mounting groove; both the first limit switch and the second limit switch include a toggle lever. The toggle lever in the first limit switch is located within the first mounting groove, and the toggle lever in the second limit switch extends vertically downward out of the second mounting groove.
[0010] In an alternative embodiment of the present application, the adjusting rod includes a first rod segment, a second rod segment, and a third rod segment; one end of the first rod segment is connected to the fixed rod, one end of the second rod segment is connected to the other end of the first rod segment, and the other end of the second rod segment extends toward the limiting roller; one end of the third rod segment is connected to the end of the second rod segment near the limiting roller, and the other end of the third rod segment extends outward along the axial direction of the limiting roller; the second rod segment is provided with a first mounting groove, and the third rod segment is provided with a second mounting groove.
[0011] In an alternative embodiment of the present application, the second rod segment is provided with a second long slot, the second long slot extends vertically and communicates with the first mounting groove; the first limit switch is located on one side of the second long slot, and the toggle lever in the first limit switch extends toward the second long slot; the end of the limiting roller passes through the second long slot, and the limiting roller can move along the second long slot to abut against the toggle lever in the first limit switch.
[0012] In an alternative embodiment of the present application, the adjusting connection structure includes a first long slot and a connecting shaft, the first long slot extends vertically; the first long slot is provided on the fixed rod, and the connecting shaft passes through the first long slot and is connected to the first rod segment.
[0013] In an alternative embodiment of the present application, the number of the first long slots and the connecting shafts is equal and both are multiple; the multiple first long slots are arranged in parallel at intervals, and the multiple connecting shafts respectively pass through the multiple first long slots.
[0014] Another aspect of the present utility model provides a traveling crane, which includes a traveling crane drum, a traveling crane trolley, a control module, and the above-mentioned running groove detection device; the bracket and the traveling crane drum are both connected to the traveling crane trolley, the limiting roller, the first limit switch, and the second limit switch are all located above the traveling crane drum, and the limiting roller is parallel to the traveling crane drum; both the first limit switch and the second limit switch are connected to the control module.
[0015] Compared with the prior art, the present utility model has the following beneficial effects:
[0016] The traveling crane provided by the present application is equipped with a running groove detection device. The limiting roller in the running groove detection device, in cooperation with the first limit switch, can detect the phenomenon of slight groove deviation, and the second limit switch can detect the phenomenon of severe groove deviation.
[0017] The running groove detection device can detect whether the rope in the traveling crane drum has a running groove phenomenon. When the rope has a running groove, it can give a timely feedback for processing, reduce the risk of rope breakage caused by the running groove of the rope, and improve safety. Brief Description of the Drawings
[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0019] Figure 1 It is a partial schematic diagram of a traveling crane provided according to one embodiment of the present application;
[0020] Figure 2 It is a block diagram of the connection relationship of the control module provided according to one embodiment of the present application;
[0021] Figure 3 is Figure 1 a schematic diagram of the running groove detection device in
[0022] Figure 4 is Figure 3 a partial enlarged view at S1 in
[0023] Figure 5 is Figure 3 a partial enlarged view at S2 in
[0024] Wherein: 100, running groove detection device; 101, lever; 110, bracket; 111, fixed rod; 112, adjusting rod; 1121, first rod section; 1122, second rod section; 1123, third rod section; 113, adjusting connection structure; 1131, connecting shaft; 120, limiting roller; 130, first limit switch; 140, second limit switch; 200, traveling crane drum; 300, control module; 400, rope; A1, first installation groove; A2, second installation groove; H1, first long hole; H2, second long hole. Detailed Embodiments
[0025] In order to make the above and other features and advantages of the present invention clearer, the present invention will be further described below with reference to the drawings. It should be understood that the specific embodiments given herein are for the purpose of explaining to those skilled in the art and are only exemplary, not restrictive.
[0026] Figure 1 It is a partial schematic diagram of a traveling crane provided according to one embodiment of the present application. Figure 2It is a block diagram of the connection relationship of the control module 300 provided according to one embodiment of the present application. Figure 3 It is Figure 1 a schematic diagram of the middle running groove detection device 100.
[0027] Please refer to Figures 1 to 3 , this traveling crane includes a running groove detection device 100, a traveling crane drum 200, a traveling crane trolley (only the support plate of the traveling crane trolley is shown in the figure), and a control module 300.
[0028] Among them, the running groove detection device 100 includes a bracket 110, a limit pressure roller 120, a first limit switch 130, and a second limit switch 140. The brackets 110 are located on both sides of the limit pressure roller 120, and both ends of the limit pressure roller 120 are respectively connected to the brackets 110 on both sides.
[0029] On each side of the bracket 110, there are a first limit switch 130 and a second limit switch 140. The second limit switch 140 is axially away from the limit pressure roller 120 relative to the first limit switch 130. The limit pressure roller 120 can move vertically and abut against the first limit switch 130.
[0030] Furthermore, the bracket 110 and the traveling crane drum 200 are both connected to the traveling crane trolley. The limit pressure roller 120, the first limit switch 130, and the second limit switch 140 are all located above the traveling crane drum 200, and the limit pressure roller 120 is parallel to the traveling crane drum 200. The first limit switch 130 and the second limit switch 140 are both connected to the control module 300.
[0031] In this embodiment, the running groove detection device 100 is mainly composed of a bracket 110, a limit pressure roller 120, a first limit switch 130, and a second limit switch 140. The bracket 110 is fixedly installed on the support plate of the traveling crane trolley, and the traveling crane drum 200 is also installed on the support plate of the traveling crane trolley and can rotate to wind and unwind the rope 400.
[0032] It should be noted that both ends of the limit pressure roller 120 refer to its axial ends. The brackets 110 on both sides are arranged at intervals in the axial direction of the traveling crane drum 200. In this way, the limit pressure roller 120 is supported by the brackets 110 on both sides and is located above the traveling crane drum 200 and parallel to the traveling crane drum 200.
[0033] On each side of the bracket 110, a first limit switch 130 and a second limit switch 140 are fixedly installed. It should be understood that by arranging the first limit switch 130 and the second limit switch 140 at appropriate positions on the bracket 110, it can be ensured that both of them are above the traveling crane drum 200.
[0034] The limiting pressure roller 120 has vertical movement freedom and can move to a position where it abuts against the first limit switch 130. The second limit switch 140 is farther away from the limiting pressure roller 120 in the axial direction of the limiting pressure roller 120 than the first limit switch 130.
[0035] In other words, the second limit switch 140 is arranged relatively more outward. The second limit switch 140 is closer to the axial end of the traveling crane drum 200 than the first limit switch 130. In a specific application, the second limit switch 140 is located at the outermost side in the axial direction of the rope groove on the traveling crane drum 200.
[0036] When a slight rope running-off phenomenon occurs to the rope 400, some of the ropes 400 are stacked. As more ropes 400 are wound on the traveling crane drum 200, the stacking problem becomes more serious, resulting in an increase in the stacking thickness of the ropes 400. The limiting pressure roller 120 is forced to move vertically until the first limit switch 130 is triggered, and the first limit switch 130 can send a signal to the control module 300.
[0037] When a serious rope derailment occurs to the rope 400, the rope 400 is thrown out of the traveling crane drum 200. In this way, the rope 400 can trigger the second limit switch 140 located on the outside, and the second limit switch 140 can send a signal to the control module 300. It should be noted that when a serious rope derailment occurs to the rope 400, it is generally caused by a rope breakage, with a relatively low probability but higher danger.
[0038] In a specific application, the traveling crane further includes an alarm device. The alarm device is connected to the control module 300, and the control module 300 can control the alarm device to give an alarm according to the signal sent by the limit switch to remind the operator to handle it in time. Of course, alarms of different safety levels can be given according to the signals sent by the first limit switch 130 and the second limit switch 140.
[0039] It can be seen that through the running-off detection device 100, it can be determined whether the rope 400 in the traveling crane drum 200 has a running-off phenomenon. When the rope 400 has a running-off, it can be processed in time, reducing the risk of rope breakage caused by the rope running-off and improving safety.
[0040] The first limit switch 130 and the second limit switch 140 here can adopt travel switches. Of course, it is not limited to this. For example, it can also be a microswitch, a tactile switch, etc. The control module 300 can adopt, for example, a single-chip microcomputer, a Programmable Logic Controller (PLC), etc., and the alarm device can adopt, for example, a buzzer, a three-color lamp, etc.
[0041] In a further optional embodiment, the bracket 110 includes a fixed rod 111, an adjusting rod 112, and an adjusting connection structure 113. The first limit switch 130 and the second limit switch 140 are both disposed on the adjusting rod 112, and the end of the limit roller 120 is connected to the adjusting rod 112.
[0042] The adjusting rod 112 is connected to the fixed rod 111 through the adjusting connection structure 113 and can adjust its vertical position relative to the fixed rod 111, so as to change the vertical positions of the limit roller 120, the first limit switch 130, and the second limit switch 140.
[0043] In this embodiment, the bracket 110 is composed of a fixed rod 111, an adjusting rod 112, and an adjusting connection structure 113. The first limit switch 130 and the second limit switch 140 are both fixedly installed on the adjusting rod 112.
[0044] Specifically, the first limit switch 130 and the second limit switch 140 are fixedly installed in the adjusting rods 112 of the brackets 110 on both sides, and the two ends of the limit roller 120 are respectively installed on the adjusting rods 112 on both sides.
[0045] The fixed rods 111 in the brackets 110 on both sides are fixedly installed on the support plate of the traveling trolley and are arranged at intervals in the axial direction of the traveling drum 200. The adjusting connection structures 113 on both sides are used to correspondingly install the adjusting rods 112 on both sides on the fixed rods 111 on both sides, and the vertical positions of the adjusting rods 112 on both sides can be adjusted through the adjusting connection structures 113 on both sides.
[0046] It should be understood that while the adjusting rods 112 on both sides change their vertical positions, they can also drive the limit roller 120 and the first limit switches 130 and the second limit switches 140 on both sides to change their vertical positions.
[0047] In this way, it is ensured that the limit roller 120, the first limit switch 130, and the second limit switch 140 are in appropriate positions vertically, thereby ensuring that the rope 400 has an appropriate clearance for movement.
[0048] In a specific application, the limit roller 120 can rotate on its own axis. In this way, when the rope 400 contacts the limit roller 120, rolling friction is formed, reducing wear and tear.
[0049] In the illustrated embodiment, the traveling drum 200 has two rope grooves arranged at intervals in its axial direction to match two ropes 400. In this way, each of the two ropes 400 corresponds to a set of the first limit switch 130 and the second limit switch 140, that is, the number of the first limit switch 130 and the second limit switch 140 is 2 each.
[0050] Figure 4 ForFigure 3 Partial enlarged view at S1. Please refer to Figure 3 and Figure 4 , in a further optional embodiment, the adjusting rod 112 is provided with a first mounting groove A1 and a second mounting groove A2. The first limit switch 130 is located in the first mounting groove A1, and the second limit switch 140 is located in the second mounting groove A2.
[0051] Both the first limit switch 130 and the second limit switch 140 include a toggle lever 101. The toggle lever 101 in the first limit switch 130 is located within the first mounting groove A1, and the toggle lever 101 in the second limit switch 140 extends vertically downward out of the second mounting groove A2.
[0052] In this embodiment, the first mounting groove A1 and the second mounting groove A2 are formed on the adjusting rod 112, and the first limit switch 130 and the second limit switch 140 are respectively installed in the first mounting groove A1 and the second mounting groove A2. In this way, it is possible to avoid as much as possible the mis-triggering of signals caused by the interference of other components in the environment with the limit switches.
[0053] It should be noted that the toggle lever 101 in the first limit switch 130 can be touched by the limit roller 120 to generate a signal for the first limit switch 130. The toggle lever 101 in the second limit switch 140 can be touched by the rope 400 to generate a signal for the second limit switch 140.
[0054] In order to ensure that the toggle lever 101 in the second limit switch 140 can be touched by the rope 400, the toggle lever 101 in the second limit switch 140 needs to extend out of the second mounting groove A2.
[0055] In a specific application, the adjusting rod 112 can be formed by splicing, for example, channel steel or angle steel, and the grooves in these steel materials correspond to the mounting grooves.
[0056] In a further optional embodiment, the adjusting rod 112 includes a first rod section 1121, a second rod section 1122, and a third rod section 1123. One end of the first rod section 1121 is connected to the fixed rod 111, one end of the second rod section 1122 is connected to the other end of the first rod section 1121, and the other end of the second rod section 1122 extends toward the limit roller 120.
[0057] One end of the third rod section 1123 is connected to the end of the second rod section 1122 close to the limit roller 120, and the other end of the third rod section 1123 extends axially outward along the limit roller 120. The second rod section 1122 is provided with a first mounting groove A1, and the third rod section 1123 is provided with a second mounting groove A2.
[0058] In this embodiment, the adjusting rod 112 is formed by sequentially splicing a first rod section 1121, a second rod section 1122, and a third rod section 1123, that is, a three-rod splicing structure is adopted.
[0059] Among them, the first rod section 1121 is used to be spliced with the fixed rod 111. Since the first installation groove A1 is formed in the second rod section 1122, in order to ensure that the limit roller 120 can touch the first limit switch 130 at the first installation groove A1, the end of the limit roller 120 is installed on the second rod section 1122.
[0060] The limit roller 120 and the third rod section 1123 can be located above the hoisting drum 200 under the support of the first rod section 1121 and the second rod section 1122.
[0061] In addition, the third rod section 1123 extends axially outward along the limit roller 120, that is, axially outward along the hoisting drum 200.
[0062] The second installation groove A2 is formed in the third rod section 1123, so that the second limit switch 140 installed in the second installation groove A2 can be located axially outside the rope groove on the hoisting drum 200.
[0063] In the illustrated embodiment, both the first rod section 1121 and the second rod section 1122 are made of channel steel, and the third rod section 1123 is made of angle steel.
[0064] Please refer to Figure 4 , in a further optional embodiment, the second rod section 1122 is provided with a second long hole H2, and the second long hole H2 extends vertically and communicates with the first installation groove A1. The first limit switch 130 is located on one side of the second long hole H2, and the toggle lever 101 in the first limit switch 130 extends towards the second long hole H2.
[0065] The end of the limit roller 120 passes through the second long hole H2, and the limit roller 120 can move along the second long hole H2 to abut against the toggle lever 101 in the first limit switch 130.
[0066] In this embodiment, the second rod section 1122 has a second long hole H2, and the second long hole H2 is arranged vertically and allows the end of the limit roller 120 to pass through. In a specific application, the end of the limit roller 120 has a clearance fit with the second long hole H2, so that the limit roller 120 can move along the second long hole H2, that is, move vertically.
[0067] In addition, the toggle lever 101 in the first limit switch 130 extends towards the second long hole H2, so that the limit roller 120 can touch the first limit switch 130 during the vertical movement process, and thus generate a signal.
[0068] Figure 5 is Figure 3 a partial enlarged view at S2 in. Please refer to Figure 5 , in a further optional embodiment, the adjusting connection structure 113 includes a first long slot H1 and a connecting shaft 1131. The first long slot H1 is provided on the fixed rod 111, and the connecting shaft 1131 passes through the first long slot H1 and is connected to the first rod segment 1121.
[0069] In this embodiment, the connecting shaft 1131 needs to pass through the fixed rod 111 and the first rod segment 1121 to join the adjusting rod 112 and the fixed rod 111 together. Among them, the hole on the fixed rod 111 that allows the connecting shaft 1131 to pass through is the first long slot H1, and the first long slot H1 extends vertically.
[0070] In this way, by adjusting the position of the connecting shaft 1131 in the first long slot H1, the vertical position of the adjusting rod 112 can be changed, so as to achieve the purpose of adjusting the vertical positions of the limiting roller 120, the first limit switch 130, and the second limit switch 140.
[0071] In a specific application, the connecting shaft 1131 can be, for example, a bolt, a pin, etc. Of course, in the illustrated embodiment, the connecting shaft 1131 is a bolt and needs to be fixed with a nut.
[0072] In the illustrated embodiment, both the first long slot H1 and the second long slot H2 are waist-shaped holes, but of course it is not limited thereto, for example, they can also be rectangular holes.
[0073] In a further optional embodiment, the number of the first long slots H1 is equal to that of the connecting shafts 1131 and both are multiple. The multiple first long slots H1 are arranged in parallel at intervals, and the multiple connecting shafts 1131 pass through the multiple first long slots H1 one by one.
[0074] In this embodiment, by cooperating the multiple first long slots H1 arranged in parallel at intervals with the multiple connecting shafts 1131, it can be ensured as much as possible that the adjusting rod 112 moves vertically, and the connection strength between the fixed rod 111 and the adjusting rod 112 can also be ensured.
[0075] In the illustrated embodiment, the number of the first long slots H1 in the unilateral first rod segment 1121 is 2, and they are arranged in parallel at intervals vertically. Of course, it is not limited thereto, as long as the multiple first long slots H1 are arranged in parallel at intervals.
[0076] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.
Claims
1. A slot running detection device, characterized in that: It comprises a bracket (110), a limit pressure roller (120), a first limit switch (130) and a second limit switch (140); The bracket (110) is located on both sides of the limiting pressure roller (120), and both ends of the limiting pressure roller (120) are respectively connected to the brackets (110) on both sides; The bracket (110) on one side is provided with the first limit switch (130) and the second limit switch (140), and the second limit switch (140) is located away from the limit roller (120) relative to the first limit switch (130) in the axial direction of the limit roller (120); The limit pressure roller (120) is capable of moving vertically and abutting against the first limit switch (130).
2. The slot running detection device according to claim 1, characterized in that: The bracket (110) comprises a fixing rod (111), an adjusting rod (112) and an adjusting connection structure (113); The first limit switch (130) and the second limit switch (140) are both arranged on the adjusting rod (112), and the end of the limit pressure roller (120) is connected to the adjusting rod (112); The adjusting rod (112) is connected to the fixed rod (111) via the adjusting connection structure (113) and is capable of adjusting a vertical position relative to the fixed rod (111) to change the vertical positions of the limit pressure roller (120), the first limit switch (130) and the second limit switch (140).
3. The slot running detection device according to claim 2, characterized in that: The adjusting rod (112) is provided with a first mounting groove (A1) and a second mounting groove (A2); The first limit switch (130) is located in the first installation groove (A1), and the second limit switch (140) is located in the second installation groove (A2); The first limit switch (130) and the second limit switch (140) both comprise a lever (101); the lever (101) in the first limit switch (130) is located in the first mounting groove (A1), and the lever (101) in the second limit switch (140) extends vertically downward to the outside of the second mounting groove (A2).
4. The slot running detection device according to claim 3, characterized in that: The adjusting rod (112) comprises a first rod segment (1121), a second rod segment (1122) and a third rod segment (1123); One end of the first rod segment (1121) is connected to the fixed rod (111), one end of the second rod segment (1122) is connected to the other end of the first rod segment (1121), and the other end of the second rod segment (1122) extends toward the limiting pressure roller (120); One end of the third rod segment (1123) is connected to one end of the second rod segment (1122) close to the limiting pressure roller (120), and the other end of the third rod segment (1123) extends outward along the axial direction of the limiting pressure roller (120); The second rod segment (1122) is provided with the first mounting groove (A1), and the third rod segment (1123) is provided with the second mounting groove (A2).
5. The slot running detection device according to claim 4, characterized in that: The second rod section (1122) is provided with a second elongated hole (H2), and the second elongated hole (H2) is vertically extended and connected to the first mounting groove (A1); The first limit switch (130) is located on one side of the second elongated hole (H2), and the lever (101) in the first limit switch (130) extends toward the second elongated hole (H2); The end of the limit pressure roller (120) passes through the second elongated hole (H2), and the limit pressure roller (120) can move along the second elongated hole (H2) to abut against the lever (101) in the first limit switch (130).
6. The slot running detection device according to claim 4, characterized in that: The adjustable connection structure (113) comprises a first elongated hole (H1) and a connecting shaft (1131), wherein the first elongated hole (H1) extends vertically; The first elongated hole (H1) is provided on the fixed rod (111), and the connecting shaft (1131) passes through the first elongated hole (H1) and is connected to the first rod section (1121).
7. The slot running detection device according to claim 6, characterized in that: The number of the first elongated holes (H1) and the number of the connecting shafts (1131) are equal and both are multiple; The plurality of first elongated holes (H1) are arranged in parallel and at intervals, and the plurality of connecting shafts (1131) are passed through the plurality of first elongated holes (H1) in a one-to-one correspondence.
8. A driving vehicle, characterized in that: It comprises a traveling reel (200), a traveling trolley, a control module (300), and a groove running detection device (100) according to any one of claims 1 to 7; The bracket (110) and the traveling reel (200) are both connected to the traveling trolley, the limit pressure roller (120), the first limit switch (130) and the second limit switch (140) are all located above the traveling reel (200), and the limit pressure roller (120) is parallel to the traveling reel (200); The first limit switch (130) and the second limit switch (140) are both connected to the control module (300).