Lifting device and lifting arrangement

Abstract

The application discloses a lifting appliance and a hoisting device, and belongs to the technical field of shaft box pull rods. The lifting appliance comprises a tray and a limiting rod. The tray is used for supporting a shaft box pull rod and is used for being connected with a lifting rope of the hoisting device. The limiting rod is connected with the tray. At least part of the limiting rod is located on the upper side of the tray. The limiting rod is used for penetrating through a through hole on the shaft box pull rod and is limitedly matched with the hole wall of the through hole. According to the scheme, the shaft box pull rod can be kept stable during hoisting, the shaft box pull rod is not easy to fall off from the lifting appliance, and the safety of hoisting can be effectively improved.

Description

Technical Field

[0001] This application belongs to the field of axle box tie rod technology, specifically relating to a lifting tool and lifting device. Background Technology

[0002] The axle box tie rod is a key component of the locomotive bogie, playing a crucial role in transmitting the locomotive's traction and braking forces. During locomotive assembly or maintenance and disassembly, the axle box tie rod is either installed onto or removed from the locomotive. These processes require hoisting the axle box tie rod to its desired position.

[0003] In related technologies, four hooks are generally used to hold the spindle hole of the axle box tie rod for hoisting. However, during the hoisting process, the axle box tie rod is prone to falling and being damaged, or even causing safety accidents. Utility Model Content

[0004] The purpose of this application is to provide a lifting tool and lifting device that can solve the problem in the related art that the axle box tie rod is prone to falling off during the lifting process.

[0005] In a first aspect, embodiments of this application provide a lifting device, which includes: The pallet is used to support the axle box tie rod and to connect to the lifting rope of the hoisting device; A limiting rod is connected to the tray, at least a portion of which is located on the upper side of the tray, and the limiting rod is used to pass through a hole in the axle box tie rod and engage with the hole wall of the hole for limiting engagement.

[0006] Secondly, embodiments of this application also provide a hoisting device, which includes a hoisting rope and the aforementioned lifting device, wherein the hoisting rope is connected to the tray of the lifting device.

[0007] In this embodiment, during hoisting, the pallet provides reliable vertical support for the axle box tie rod, effectively reducing the probability of it falling. Furthermore, the limiting rod is connected to the pallet, with at least a portion located on the upper side of the pallet. It passes through a perforation on the axle box tie rod and engages with the perforation wall for limiting. When the lifting device lifts, the limiting rod, passing through the perforation, can limit the horizontal movement of the axle box tie rod, preventing it from moving horizontally. Thus, even if the lifting device sways or is subjected to external interference during hoisting, the limiting rod ensures the axle box tie rod remains in a relatively stable position, preventing it from easily falling off the lifting device, thereby effectively improving hoisting safety. Attached Figure Description

[0008] Figure 1 This is a perspective view of a lifting device disclosed in one embodiment of this application; Figure 2 This is a perspective view of the tray disclosed in the embodiments of this application; Figure 3 This is a three-dimensional schematic diagram of the limiting rod disclosed in the embodiments of this application; Figure 4 This is a perspective view of a lifting device disclosed in another embodiment of this application; Figure 5 This is a schematic diagram of a lifting device supporting multiple axle box tie rods as disclosed in the embodiments of this application.

[0009] Explanation of reference numerals in the attached figures: 100 - Pallet; 110 - Annular support; 120 - Intermediate support; 121 - Connecting hole; 130 - Through hole; 200 - Limiting rod; 210 - Limiting part; 220 - Connecting part; 300 - Baffle; 400 - Lifting lug; 410 - Fixing part; 420 - Lifting eyelet; 500 - Axle box tie rod; 501 - Mandrel hole; 510 - Short mandrel; 520 - Long mandrel; 530 - Tie rod body; 540 - Perforation. Detailed Implementation

[0010] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0011] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0012] The lifting tools and hoisting devices provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0013] refer to Figures 1-5 The lifting device provided in this application embodiment may include a pallet 100 and a limiting rod 200.

[0014] The pallet 100 can be used to support the axle box tie rod 500 and can also be used to connect with the lifting rope of the lifting device; such as Figure 1 and Figure 4 As shown, the limiting rod 200 can be connected to the tray 100, and at least a portion of the limiting rod 200 can be located on the upper side of the tray 100, and, as Figure 5 As shown, the limiting rod 200 can be used to pass through the through hole 540 on the axle box tie rod 500 and can be limited and engaged with the hole wall of the through hole 540.

[0015] In this embodiment, during hoisting, the pallet 100 provides reliable vertical support for the axle box tie rod 500, effectively reducing the probability of it falling. Furthermore, the limiting rod 200 is connected to the pallet 100, and at least partially located on the upper side of the pallet 100. It passes through the through hole 540 on the axle box tie rod 500 and engages with the hole wall of the through hole 540. When the lifting device lifts, because the limiting rod 200 passes through the through hole 540, it can limit the horizontal movement of the axle box tie rod 500, preventing it from moving horizontally. Thus, even if the lifting device shakes or is subjected to external interference during hoisting, the limiting rod 200 ensures that the axle box tie rod 500 remains in a relatively stable position and is not easily detached from the lifting device, thereby effectively improving the safety of hoisting.

[0016] Optionally, such as Figure 5 As shown, the length of the limiting rod 200 is greater than the maximum thickness of the axle box tie rod 500. This allows the limiting rod 200 to simultaneously limit multiple axle box tie rods 500, enabling simultaneous hoisting of multiple axle box tie rods 500. This significantly reduces the number of hoisting operations, decreasing the labor intensity and workload of workers, saving hoisting time, and consequently shortening the total maintenance time of the locomotive, improving overall work efficiency and facilitating the early commissioning of the locomotive. Furthermore, the limiting action of the limiting rod 200 on the axle box tie rods 500 ensures the stability of multiple axle box tie rods 500 during hoisting, preventing swaying and collisions caused by irregular shapes and stacking issues, thus guaranteeing the safety of personnel and equipment.

[0017] Furthermore, because the lifting device can limit the movement of the axle box tie rod 500, it can also be used as a storage device for the axle box tie rod 500. For example, multiple axle box tie rods 500 can be stacked on the lifting device. The limiting rod 200 limits the movement of the axle box tie rods 500, preventing them from falling or collapsing. The lifting device also allows multiple axle box tie rods 500 to be arranged regularly, effectively reducing the risk of them tilting to one side and collapsing during normal storage, thus providing safety assurance during storage. Moreover, using the lifting device to store the axle box tie rods 500 allows them to be arranged more aesthetically and neatly at the work site, which is beneficial for optimizing the space utilization and layout planning of the maintenance area.

[0018] In related technologies, such as Figure 5 As shown, the axle box tie rod 500 may include a short spindle 510, a long spindle 520, and a tie rod body 530. The short spindle 510 and the long spindle 520 can be connected by the tie rod body 530. Both ends of the short spindle 510 and the long spindle 520 may be provided with mounting portions, and the mounting portions may be provided with spindle holes 501 for connection with the locomotive. Furthermore, the tie rod body 530 may be provided with through holes 540, which can serve as weight-reducing holes to reduce the weight of the axle box tie rod 500. After the axle box tie rod 500 is placed on the tray 100, the short spindle 510 and the long spindle 520 of the bottom axle box tie rod 500 can contact the tray 100. For example, the axle box tie rod 500 may be an axle box tie rod adapted to the SS4B type locomotive.

[0019] In one alternative embodiment, such as Figure 1 and Figure 2 As shown, the pallet 100 may include an annular support portion 110 and an intermediate support portion 120. The intermediate support portion 120 may be located inside the annular support portion 110, and both ends of the intermediate support portion 120 may be connected to the annular support portion 110. Here, the limiting rod 200 may be connected to the intermediate support portion 120, and the intermediate support portion 120 may support the axle box pull rod 500.

[0020] like Figure 1 and Figure 2 As shown, a portion of the annular support portion 110 may protrude from the upper surface of the intermediate support portion 120. In the direction from the annular support portion 110 to the intermediate support portion 120, the annular support portion 110 may engage with at least one axle box tie rod 500 for limiting.

[0021] In this embodiment, a semi-enclosed protective area can be formed between the annular support portion 110 and the intermediate support portion 120. This protective area can block at least a portion of the axle box tie rod 500 placed on the intermediate support portion 120 in the horizontal direction, so as to prevent the axle box tie rod 500 from sliding out of the pallet 100, thereby effectively avoiding the risk of the axle box tie rod 500 falling and ensuring the safety of the hoisting process.

[0022] For example, in the direction from the annular support portion 110 to the intermediate support portion 120, the annular support portion 110 can be limited to cooperate with the lowermost axle box tie rod 500. Specifically, the annular support portion 110 can be limited to cooperate with the short spindle 510 and the long spindle 520 of the lowermost axle box tie rod 500.

[0023] In other embodiments, the annular support portion 110 may not protrude from the upper surface of the intermediate support portion 120.

[0024] In another alternative embodiment, such as Figure 4 and Figure 5 As shown, a baffle 300 may be provided on the edge of the pallet 100. The baffle 300 may surround the pallet 100, and at least a portion of the baffle 300 may protrude from the upper surface of the pallet 100. In the direction from the baffle 300 to the pallet 100, the baffle 300 may engage with at least one axle box tie rod 500 for limiting. In this embodiment, a semi-enclosed protective area may be formed between the baffle 300 and the pallet 100. This protective area can block the axle box tie rod 500 placed on the pallet 100 in the horizontal direction, thereby preventing the axle box tie rod 500 from sliding off the pallet 100 and effectively avoiding the risk of the axle box tie rod 500 falling off, ensuring the safety of the hoisting process.

[0025] In other embodiments, the edge of the tray 100 may not be provided with a baffle 300.

[0026] In optional embodiments, such as Figure 4 and Figure 5 As shown, the pallet 100 may include an annular support portion 110 and an intermediate support portion 120. The intermediate support portion 120 may be located inside the annular support portion 110, and both ends of the intermediate support portion 120 may be connected to the annular support portion 110. Here, the limiting rod 200 may be connected to the intermediate support portion 120, and the intermediate support portion 120 and the annular support portion 110 may jointly support the axle box pull rod 500.

[0027] Optionally, the upper surface of the annular support portion 110 and the upper surface of the intermediate support portion 120 are flush. This arrangement ensures that when the pallet 100 supports the axle box tie rod 500, the weight of the tie rod 500 is evenly distributed across the annular support portion 110 and the intermediate support portion 120. This prevents excessive localized stress on the pallet 100, which could lead to deformation or damage, and thus extends the service life of the pallet 100. Furthermore, the annular support portion 110 and the intermediate support portion 120 can jointly support the axle box tie rod 500, reducing swaying of the tie rod 500 during lifting. Here, the baffle 300 can be connected to the annular support portion 110.

[0028] In other embodiments, the upper surface of the annular support portion 110 may not be flush with the upper surface of the intermediate support portion 120.

[0029] In some embodiments, the tray 100 may also be an integral flat plate structure.

[0030] In an optional embodiment, the pallet 100 is provided with at least two connecting holes 121, which are spaced apart. The limiting rod 200 can selectively connect to one of the connecting holes 121. Since axle box pull rods 500 of different specifications may differ in size, shape, and the position of the through holes 540, by providing multiple spaced connecting holes 121, the limiting rod 200 can select a matching connecting hole 121 for connection based on the actual position of the through holes 540 on the axle box pull rod 500. For example, for an axle box pull rod 500 with the through hole 540 located near the short mandrel 510, the limiting rod 200 can be selected to connect to the connecting hole 121 near the narrower end of the pallet 100; for an axle box pull rod 500 with the through hole 540 located near the long mandrel 520, the limiting rod 200 can be selected to connect to the connecting hole 121 near the wider end of the pallet 100. This configuration effectively improves the versatility of the lifting device.

[0031] In other embodiments, the tray 100 may also have only one connection hole 121.

[0032] For example, the connection hole 121 can be a threaded hole.

[0033] In some embodiments, the shape of the tray 100 may be adapted to the shape of the axle box pull rod 500. For example, as shown... Figure 2 and Figure 4 As shown, the tray 100 can be an isosceles trapezoidal structure to accommodate the short spindle 510 and long spindle 520 of the axle box tie rod 500.

[0034] In one alternative embodiment, the limiting rod 200 is detachably connected to the pallet 100. This arrangement allows for two advantages: firstly, if either the limiting rod 200 or the pallet 100 is damaged and needs replacement, only the damaged one needs to be replaced, rather than the entire unit; secondly, it allows the limiting rod 200 and the pallet 100 to be separated, reducing the space occupied by the lifting device and facilitating its storage.

[0035] Of course, the limit rod 200 and the tray 100 can also be connected non-detachably.

[0036] Optionally, the limiting rod 200 can be threaded to the tray 100. Alternatively, the limiting rod 200 can be connected to the tray 100 using screws. This configuration provides a relatively stronger connection and better stability compared to a snap-fit ​​connection between the limiting rod 200 and the tray 100.

[0037] Of course, the limit rod 200 can also be engaged with the tray 100.

[0038] In some embodiments, such as Figure 3 As shown, the limiting rod 200 may include a limiting part 210 and a connecting part 220. The limiting part 210 and the connecting part 220 are coaxially connected, and the connecting part 220 may be threadedly connected to the tray 100. For example, the connecting part 220 may be a screw.

[0039] In another alternative embodiment, the limiting rod 200 and the pallet 100 are an integral structure. This configuration can improve the connection strength and stability between the limiting rod 200 and the pallet 100, and can reduce the number of connecting structures to simplify the structure of the lifting device.

[0040] In optional embodiments, such as Figure 2 and Figure 4 As shown, a through hole 130 is provided on the pallet 100, and the through hole 130 penetrates the pallet 100 along the thickness direction of the pallet 100. This arrangement can reduce the weight of the lifting device. For example, the through hole 130 can be formed between the annular support portion 110 and the intermediate support portion 120 mentioned above.

[0041] Of course, the through hole 130 may not be provided on the tray 100.

[0042] In an optional embodiment, the pallet 100 may be provided with at least two lifting lugs 400, each of which may be distributed around the circumference of the pallet 100 and may be used to connect to a lifting rope. This arrangement ensures that when multiple lifting lugs 400 are used in conjunction with lifting ropes for hoisting, the load can be evenly distributed around the pallet 100, preventing the pallet 100 from tilting or swaying due to concentrated load at a single point. This allows the pallet 100 to remain level during hoisting, thereby improving the stability of the hoisting process.

[0043] For example, the pallet 100 may be provided with four lifting lugs 400. The pallet 100 may be a quadrilateral structure. The four lifting lugs 400 may be respectively provided at the four corners of the pallet 100. This arrangement can evenly distribute the pulling force generated during the lifting process to the four corners of the pallet 100, preventing the pallet 100 from being deformed or damaged due to excessive force on a certain part.

[0044] Of course, the tray 100 can also be equipped with only one lifting lug 400.

[0045] Optionally, the lifting lug 400 may include a fixing part 410 and a lifting ring 420 connected to the fixing part 410. Exemplarily, the lifting ring 420 and the fixing part 410 are an integral structure, and the fixing part 410 can be connected to the tray 100. Exemplarily, the fixing part 410 can be detachably connected to the tray 100, for example, the fixing part 410 is threadedly connected to the tray 100. Of course, the fixing part 410 and the tray 100 can also be non-detachably connected, for example, the fixing part 410 and the tray 100 are an integral structure.

[0046] In some embodiments, the shape and size of the lifting device can be determined according to the shape of the axle box tie rod 500 and the lifting requirements, so that the lifting device can be used with different axle box tie rods 500. Furthermore, the center of gravity of the lifting device and the center of gravity of the axle box tie rod 500 can both be located on the axis of the limiting rod 200, thus ensuring that the lifting device is balanced under force and guaranteeing stability and safety during lifting.

[0047] Both the pallet 100 and the limit bar 200 can be made of stainless steel or other materials with high hardness and strength, depending on the specific requirements, to ensure the durability and reliability of the spreader and enable it to withstand the loads of frequent lifting operations. After the spreader is manufactured, it can undergo flaw detection and load testing to check its performance and safety, and adjustments and optimizations can be made based on the test results.

[0048] Based on the lifting device provided in the embodiments of this application, this application also provides a lifting apparatus. The lifting apparatus may include a lifting rope and the lifting device described in any of the above embodiments. The lifting rope may be connected to the pallet 100 of the lifting device. The lifting apparatus can be used to lift the axle box tie rod 500 to the pressing station, painting station, assembly station, etc.

[0049] The beneficial effects achieved by the hoisting device provided in this application embodiment are consistent with the beneficial effects achieved by the lifting tool provided in this application embodiment, and will not be repeated here.

[0050] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A lifting device, characterized in that, include: A pallet (100) is used to support the axle box tie rod (500) and to connect to the lifting rope of the hoisting device; A limiting rod (200) is connected to the tray (100), at least a portion of the limiting rod (200) is located on the upper side of the tray (100), and the limiting rod (200) is used to pass through a through hole (540) on the axle box tie rod (500) and engage with the hole wall of the through hole (540).

2. The lifting device according to claim 1, characterized in that, The pallet (100) includes an annular support portion (110) and an intermediate support portion (120). The intermediate support portion (120) is located inside the annular support portion (110), and both ends of the intermediate support portion (120) are connected to the annular support portion (110). The intermediate support portion (120) is used to support the axle box tie rod (500), and the limiting rod (200) is connected to the intermediate support portion (120). A portion of the annular support (110) protrudes from the upper surface of the intermediate support (120), and in the direction from the annular support (110) to the intermediate support (120), the annular support (110) can be limited to at least one of the axle box tie rods (500).

3. The lifting device according to claim 1, characterized in that, The edge of the tray (100) is provided with a baffle (300) which surrounds the tray (100). At least a portion of the baffle (300) protrudes from the upper surface of the tray (100). In the direction from the baffle (300) to the tray (100), the baffle (300) can be engaged with at least one of the axle box tie rods (500).

4. The lifting device according to claim 3, characterized in that, The pallet (100) includes an annular support portion (110) and an intermediate support portion (120). The intermediate support portion (120) is located inside the annular support portion (110), and both ends of the intermediate support portion (120) are connected to the annular support portion (110). The limiting rod (200) is connected to the intermediate support portion (120). The upper surface of the annular support (110) is flush with the upper surface of the intermediate support (120), and the baffle (300) is connected to the annular support (110).

5. The lifting device according to claim 1, characterized in that, The tray (100) is provided with at least two connection holes (121), and the connection holes (121) are spaced apart. The limiting rod (200) can be selectively connected to one of the connection holes (121).

6. The lifting device according to claim 1, characterized in that, The limiting rod (200) is detachably connected to the tray (100).

7. The lifting device according to claim 1, characterized in that, The limiting rod (200) and the tray (100) are an integral structure.

8. The lifting device according to claim 1, characterized in that, The tray (100) is provided with a through hole (130), which penetrates the tray (100) along the thickness direction of the tray (100).

9. The lifting device according to claim 1, characterized in that, The tray (100) is provided with at least two lifting lugs (400), each of the lifting lugs (400) is distributed around the circumference of the tray (100), and each of the lifting lugs (400) is used to connect to the lifting rope.

10. A hoisting device, characterized in that, Includes a lifting rope and a lifting device as described in any one of claims 1-9, wherein the lifting rope is connected to the tray (100) of the lifting device.

Images