A floating track trolley and track suspension device

Abstract

This utility model discloses a floating rail trolley and a rail suspension device. The floating rail trolley includes a pulley assembly, a suspension assembly located below the pulley assembly, and a load-bearing component connected to the suspension assembly. The pulley assembly includes a main support with a groove in the middle and a suspension screw passing through the groove. Pulleys are installed at both ends of the main support, and the pulley assembly is suspended from the rail by the pulleys. The suspension assembly includes a mounting plate with a through hole in the middle and a suspension shaft passing through the through hole. The center of the suspension shaft has a socket for the suspension screw to be inserted. A spring is wrapped around the outer side of the suspension shaft, and the top of the spring contacts the lower surface of the mounting plate. The mounting plate has several mounting holes for installing the load-bearing component. This utility model has a simple structure and is easy to use. It can adapt to transportation scenarios where heavy loads move on the rail or the load body rotates, improve the safety performance of rail hoisting, and avoid overloading of a single rail trolley due to rail deformation or center of gravity shift.

Description

Technical Field

[0001] This utility model relates to the field of track suspension technology, specifically a floating track trolley and track suspension device. Background Technology

[0002] Existing load-bearing structures for rail-mounted systems typically use rail trolleys as both load-bearing and moving components. This method usually relies on four rail trolleys to share the load, with multiple pulleys on each trolley further distributing the weight. When facing relatively stable and heavy loads, the evenly distributed load distribution by the rail trolleys is sufficient. However, when dealing with extremely heavy loads moving on the rails, or in situations involving load rotation, uneven load distribution on the rail trolleys can occur, or deformation of the load-bearing rails or the trolley mounting frame can lead to overloading of any single rail trolley. Increasing the number of rail trolleys, such as to six, still results in individual trolley overloading due to rail deformation or center of gravity shift; therefore, improvement is necessary. Utility Model Content

[0003] In view of the above-mentioned defects of the prior art, the present invention provides a floating rail trolley and rail suspension device, which has a simple structure and is easy to use. It can adapt to transportation scenarios where heavy loads move on the rail or the load body rotates, improve the safety performance of rail hoisting, and avoid overloading of a single rail trolley due to rail deformation or center of gravity shift.

[0004] To solve the above technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model discloses a floating track trolley, including a pulley assembly, a suspension assembly disposed below the pulley assembly, and a load-bearing member connected to the suspension assembly;

[0006] The pulley assembly includes a main support with a groove in the middle and a hanging screw passing through the groove. Pulleys are installed at both ends of the main support, and the pulley assembly is suspended on the slide rail by the pulleys.

[0007] The suspension assembly includes a mounting plate with a through hole in the middle and a suspension shaft passing through the through hole. The center of the suspension shaft has a socket for the suspension screw to be inserted. A spring is sleeved on the outer side of the suspension shaft. The top of the spring contacts the lower surface of the mounting plate. The mounting plate is provided with a plurality of mounting holes for mounting the load-bearing component.

[0008] Furthermore, the hanging shaft has an inverted T-shaped structure, and the bottom of the hanging shaft is provided with a boss for mounting the spring, so that the spring is accommodated between the mounting plate and the hanging shaft.

[0009] Furthermore, the hanging shaft extends upward from the mounting plate, and the extended portion is provided with external threads. The extended portion is connected to the preload nut through the external threads. Tightening the preload nut causes the mounting plate to generate a downward preload on the spring.

[0010] Furthermore, the mounting plate is provided with a limiting block, which has a contour that matches the shape of the preload nut. The limiting block fits against the preload nut through the contour, thereby limiting the position of the preload nut.

[0011] Furthermore, the limiting block is provided with an arc-shaped groove hole, and the mounting plate is provided with a bolt groove inside. The bolt is inserted through the groove hole and into the bolt groove, so that the limiting block is fixed on the mounting plate by the bolt. By adjusting the fixed position of the bolt on the groove hole, the preload nut can be finely adjusted.

[0012] Furthermore, the hanging screw is provided with a positioning hole, and the main support is provided with a shaft hole that matches the positioning hole. The hanging screw is inserted into the groove of the main support, and the positioning shaft is inserted into the shaft hole and the positioning hole in sequence to realize the fast connection between the hanging screw and the main support.

[0013] Furthermore, a spherical bearing is installed at the axial hole of the main support, and a spacer is provided on the spherical bearing to form an axial limit, thereby improving the connection stability.

[0014] Furthermore, the carrier includes an L-shaped connecting plate with a plurality of connecting holes at its upper end. The connecting holes are adapted to the mounting holes on the mounting plate, so that the connecting plate and the mounting plate are fastened together by bolts and T-nuts.

[0015] Furthermore, a bearing space is formed between the two opposing connecting plates to facilitate the accommodation of the load. The connecting plates are provided with several fixing holes, so that bolts pass through the fixing holes to limit the load. The ends of the bolts are fixed with T-nuts.

[0016] This utility model also discloses a track suspension device, including the above-mentioned floating track trolley.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The floating track trolley provided by this utility model has a simple structure and is easy to use. A spring is looped around the outside of the hanging shaft of the hanging assembly. The preload generated by the spring distributes the load-bearing weight, avoiding track deformation or center of gravity shift when the track hanging device carries a heavy load, and preventing overloading of a single track trolley in the track hanging device.

[0019] 2. The floating track trolley provided by this utility model can adjust the load-bearing weight of the floating track trolley by setting a pre-tightening nut on the mounting plate of the suspension assembly to adjust the preload of the spring. Furthermore, by setting a limiting block with a contour similar to the pre-tightening nut, the load-bearing weight of the floating track trolley can be finely adjusted, thereby improving the movement stability of the track suspension device.

[0020] 3. The floating track trolley provided by this utility model fixes the hanging screw and the main support through the positioning shaft, and sets the spherical bearing and spacer at the shaft hole of the main support to improve the tightness of the connection between the pulley assembly and the hanging assembly and improve the overall stability of the trolley.

[0021] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the track suspension device in this utility model.

[0023] Figure 2 This is a schematic diagram of the overall structure of the floating track trolley in this utility model.

[0024] Figure 3 This is a schematic diagram of the pulley assembly in the floating track trolley of this utility model.

[0025] Figure 4 This is a cross-sectional schematic diagram of the pulley assembly in the floating track trolley of this utility model.

[0026] Figure 5 This is a structural schematic diagram of the suspension assembly in the floating track trolley of this utility model.

[0027] Figure 6 This is a cross-sectional schematic diagram of the pulley assembly in the floating track trolley of this utility model.

[0028] Figure 7 This is a structural schematic diagram of the load-bearing component in the floating track trolley of this utility model.

[0029] Figure 8 This is a cross-sectional structural diagram of the floating track trolley in this utility model. Detailed Implementation

[0030] To make the technical means, inventive features, objectives, and effects of this utility model readily understandable, the present utility model is further described below in conjunction with specific illustrations. However, this utility model is not limited to the embodiments described below.

[0031] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in reading and understanding the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0032] Furthermore, the terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

[0033] This embodiment discloses a track suspension device, such as... Figure 1 As shown, the track suspension device is suspended on the slide rail 10. Based on the conventional four-wheeled evenly distributed track frame trolley 19, a floating track trolley disclosed in this embodiment is added at the middle position of the two track frame trolleys 19 on each side.

[0034] like Figure 2 As shown, the floating track trolley includes a pulley assembly 1, a suspension assembly 2 located below the pulley assembly 1, and a load-bearing member 3 connected to the suspension assembly 2. The pulley assembly 1 is suspended on the slide rail 10, the load-bearing member 3 is used to support heavy objects, and the suspension assembly 2 is used to connect the pulley assembly 1 and the load-bearing member 3.

[0035] like Figure 3 and Figure 4 As shown, the pulley assembly 1 includes a main support 11 with a slot in the middle and a hanging screw 12 passing through the slot. A pair of pulleys 14 are respectively installed at both ends of the main support 11, and the pulley assembly 1 is suspended from the slide rail 10 via the pulleys 14. The head shape of the hanging screw 12 matches the slot, allowing the head of the hanging screw 12 to insert into the slot. The hanging screw 12 has a positioning hole, and the main support 11 has axial holes on both sides of the slot that are adapted to the positioning hole. The hanging screw 12 is inserted into the slot of the main support 11, and the positioning shaft 13 is sequentially inserted into the axial hole and the positioning hole, achieving a tight connection between the hanging screw 12 and the main support 11. A spherical bearing 17 is installed at the axial hole of the main support 11, and a spacer 18 is provided on the spherical bearing 17 to form an axial limit, improving connection stability. The lower part of the hanging screw 12 is connected to the hanging assembly 2 by a thread and is tightened by a stop nut 16 to prevent loosening between the hanging screw 12 and the hanging assembly 2.

[0036] like Figure 5 and Figure 6 As shown, the hanging assembly 2 includes a mounting plate 21 with a through hole in the middle and a hanging shaft 22 passing through the through hole. The center of the hanging shaft 22 has a socket for the hanging screw 12 to be inserted. After the hanging screw 12 is inserted into the socket, it immediately tightens the stop nut 16. A spring is wrapped around the outer side of the hanging shaft 22. The top of the spring contacts the lower surface of the mounting plate 21. In this embodiment, a rectangular spring is used.

[0037] The hanging shaft 22 has an inverted T-shaped structure. A boss 220 for mounting the spring is provided at the bottom of the hanging shaft 22, allowing the spring to be accommodated between the mounting plate 21 and the hanging shaft 22. The hanging shaft 22 extends upwards from the mounting plate 21, and the extended portion has external threads. The extended portion is connected to a preload nut 23 via the external threads. Tightening the preload nut 23 causes the mounting plate 21 to exert a downward preload on the spring.

[0038] A limiting block 25 is provided on one side of the mounting plate 21. The limiting block 25 has a contour that matches the shape of the preload nut 23. The limiting block 25 fits against the preload nut 23 through the contour, so that the limiting block 25 is nested in half of the preload nut 23, thereby limiting the position of the preload nut 23. The limiting block 25 has an arc-shaped groove hole. The mounting plate 21 has a bolt groove inside. A bolt is inserted through the groove hole into the bolt groove, so that the limiting block 25 is fixed to the mounting plate 21 by the bolt. Adjusting the fixed position of the bolt in the groove hole allows for fine adjustment of the position of the preload nut 23. The arc-shaped groove hole provides a certain range of rotation for the locking nut 23.

[0039] The mounting plate 21 has several mounting holes on its side, which are used to mount the carrier 3. Figure 7 and Figure 8 As shown, the support member 3 includes an L-shaped connecting plate 31. The upper end of the connecting plate 31 has several connecting holes, which are adapted to the mounting holes on the mounting plate 21, allowing for a secure connection between the connecting plate 31 and the mounting plate 21 using bolts and T-nuts. A support space is formed between the two opposing connecting plates 31, facilitating the placement of the support object. The connecting plate 31 has several fixing holes, through which bolts pass to limit the movement of the support object 32. The bolt ends are secured with T-nuts.

[0040] In use, the pulley assembly 1 of the floating track trolley is suspended from the slide rail 10 via pulleys, and the load is contained within the bearing member 3. Due to the preload applied to the spring in the suspension assembly 2, the floating track trolley shares part of the load of the track suspension device, preventing deformation or center of gravity shift of the track suspension device due to excessive load. The preload of the spring can also be adjusted by adjusting the tightness of the preload nut 23, thereby adjusting the load-bearing capacity of the floating track trolley and ensuring the overall stability of the track suspension device.

[0041] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A floating track trolley, characterized in that It includes a pulley assembly (1), a hanging assembly (2) located below the pulley assembly (1), and a support member (3) connected to the hanging assembly (2). The pulley assembly (1) includes a main support (11) with a slot in the middle and a hanging screw (12) passing through the slot. Pulleys (14) are installed at both ends of the main support (11). The pulley assembly (1) is suspended on the slide rail (10) by the pulleys (14). The hanging assembly (2) includes a mounting plate (21) with a through hole in the middle and a hanging shaft (22) passing through the through hole. The center of the hanging shaft (22) has a socket for the hanging screw (12) to be inserted. A spring is wrapped around the outer side of the hanging shaft (22). The top of the spring contacts the lower surface of the mounting plate (21). The mounting plate (21) is provided with a plurality of mounting holes for mounting the bearing (3).

2. The floating track trolley of claim 1, wherein, The hanging shaft (22) has an inverted T-shaped structure. The bottom of the hanging shaft (22) is provided with a boss for mounting the spring, so that the spring is accommodated between the mounting plate (21) and the hanging shaft (22).

3. The floating track trolley of claim 1, wherein, The hanging shaft (22) extends upward from the mounting plate (21). The extended part is provided with external threads. The extended part is connected to the preload nut (23) through the external threads. Tightening the preload nut (23) causes the mounting plate (21) to generate a downward preload on the spring.

4. The floating track trolley of claim 3, wherein, The mounting plate (21) is provided with a limiting block (25), and the limiting block (25) is provided with a contour that is consistent with the shape of the preload nut (23). The limiting block (25) fits against the preload nut (23) through the contour, thereby limiting the preload nut (23).

5. The floating track trolley of claim 4, wherein, The limiting block (25) is provided with an arc-shaped waist groove hole, and the mounting plate (21) is provided with a bolt groove inside. The bolt is inserted through the waist groove hole and into the bolt groove, so that the limiting block (25) is fixed on the mounting plate (21) by the bolt. The fixed position of the bolt on the waist groove hole is adjusted to achieve fine adjustment of the limiting position of the preload nut (23).

6. The floating track trolley of claim 1, wherein, The hanging screw (12) is provided with a positioning hole, and the main support (11) is provided with a shaft hole that matches the positioning hole. The hanging screw (12) is inserted into the slot of the main support (11), and the positioning shaft (13) is inserted into the shaft hole and the positioning hole in sequence to realize the fast connection between the hanging screw (12) and the main support (11).

7. The floating track trolley of claim 6, wherein, A spherical bearing (17) is installed at the axial hole of the main support (11), and a spacer (18) is provided on the spherical bearing (17) to form an axial limit and improve the connection stability.

8. The floating track trolley of claim 1, wherein, The support member (3) includes an L-shaped connecting plate (31). The upper end of the connecting plate (31) is provided with several connecting holes. The connecting holes are adapted to the mounting holes on the mounting plate (21), so that the connecting plate (31) and the mounting plate (21) can be fastened together by bolts and T-nuts.

9. The floating track trolley of claim 8, wherein, The two opposing connecting plates (31) form a bearing space that facilitates the accommodation of the load. The connecting plates (31) are provided with several fixing holes, so that the bolts pass through the fixing holes to limit the load. The ends of the bolts are fixed with T-nuts.

10. A track suspension device, characterized in that, The floating track trolley includes any one of claims 1 to 9.

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