Lifting roller device applied to walking axle

Abstract

The application discloses a lifting roller device applied to a walking shaft and used for supporting a drag chain, which comprises a plurality of roller mechanisms, the roller mechanisms are distributed at equal intervals along the upper end of the drag chain and used for supporting the bottom of the upper section of the drag chain, each roller mechanism comprises a support assembly, a rotating frame and two roller assemblies, the rotating frame is rotatably installed on the support assembly through a rotating piece, the two roller assemblies are installed on the rotating frame and are distributed at a 90-degree angle, when one roller assembly is arranged in the width direction of the drag chain and is used for supporting the bottom of the upper section of the drag chain, the other roller assembly is located on the side of the drag chain and is parallel to the upper section of the drag chain. The application effectively avoids the phenomenon that the drag chain is suspended and falls down, thereby avoiding the phenomena that the drag chain is rubbed, pulled and damaged, improving the stability and service life of the drag chain, and reducing the on-site maintenance cost.

Description

Technical Field

[0001] This invention relates to the technical field of cable chain auxiliary support, and more particularly to a lifting roller device applied to the traveling shaft. Background Technology

[0002] In the field of industrial automation and machinery equipment, cable chains are an important cable management system widely used for the protection and guidance of cables, oil pipes, air pipes, etc. in various mobile devices. Especially in long-stroke (≥15m) traveling axis applications, cable chains need to follow moving parts in long-distance, high-frequency reciprocating motions. Their stability and durability are directly related to the operating efficiency and maintenance costs of the entire equipment.

[0003] However, under current technological conditions, a significant problem gradually emerges when cable chains are used on long-stroke travel axes: due to the weight of the cable chain itself and the inertia during dynamic movement, especially in the middle and later stages of the stroke, the cable chain often experiences a dangling or sagging phenomenon. This sagging not only increases the friction between the cable chain and the surrounding environment (such as guide rails, supports, etc.), but may also cause damage to the internal cables of the cable chain due to tension, or even serious malfunctions such as breakage or fracture, directly affecting the normal operation and safety of the equipment. Summary of the Invention

[0004] In view of the above-mentioned problems of existing cable chain travel, the aim is to provide a lifting roller device for the traveling shaft with long service life and low maintenance cost.

[0005] The specific technical solution is as follows:

[0006] A lifting idler roller device for a traveling shaft, used to support a cable chain, includes: a plurality of idler roller mechanisms, which are evenly distributed along the upper section of the cable chain to support the bottom of the upper section of the cable chain. Each idler roller mechanism includes: a support assembly, a rotating frame, and two idler roller assemblies. The rotating frame is rotatably mounted on the support assembly via a rotating component. The two idler roller assemblies are mounted on the rotating frame and are distributed at a 90-degree angle. When one of the idler roller assemblies is aligned with the width direction of the cable chain and supports the bottom of the upper section of the cable chain, the other idler roller assembly is located on the side of the cable chain and parallel to the upper section of the cable chain. When the curved section of the cable chain passes the idler roller assemblies distributed along the width direction of the cable chain, the curved section of the cable chain can deflect the idler roller assembly to rotate 90 degrees around the rotating component, so that the other idler roller assembly rotates to the inside or outside of the curved section of the cable chain.

[0007] As a further improvement and optimization of this solution, the rotating component is a rotating shaft, the top of which is connected to the rotating frame, and the bottom of which is rotatable and longitudinally slidable to the support assembly.

[0008] As a further improvement and optimization of this solution, an upper cam and a lower cam are coaxially sleeved on the outside of the rotating shaft. The upper cam is connected to the rotating frame, and the lower cam is connected to the support assembly. The bottom of the upper cam has a plurality of engaging blocks distributed circumferentially, and the top of the lower cam has a plurality of engaging grooves that match the plurality of engaging blocks respectively. The plurality of engaging blocks are respectively matched and positioned in the plurality of engaging grooves. When the curved section of the drag chain moves the idler assembly, the engaging block can slide from the side wall of the corresponding engaging groove into the adjacent engaging groove, so that the idler assembly rotates ninety degrees.

[0009] As a further improvement and optimization of this solution, both sides of the fitting groove are inclined surfaces.

[0010] As a further improvement and optimization of this solution, a locking structure is also provided between the bracket assembly and the rotating shaft for locking the rotating shaft.

[0011] As a further improvement and optimization of this solution, the locking structure includes at least one locking bolt threaded onto the bracket assembly. By tightening the locking bolt, the locking bolt abuts and locks against the side wall of the rotating shaft.

[0012] As a further improvement and optimization of this solution, the support assembly includes:

[0013] The base on which the bottom of the rotating shaft is longitudinally slidable and rotatably mounted;

[0014] A support cylinder is coaxially sleeved outside the rotating shaft, and the bottom of the support cylinder is connected to the base. The side wall of the support cylinder has at least one threaded hole, and the locking bolt is threaded into the threaded hole.

[0015] A support is mounted on top of the support cylinder, and the top of the rotating shaft rotatably and longitudinally slides through the support and is connected to the rotating frame.

[0016] As a further improvement and optimization of this solution, the base has a bearing seat, the top of the bearing seat has a shaft hole, and the bottom of the rotating shaft is longitudinally slidable and rotatably mounted in the shaft hole.

[0017] As a further improvement and optimization of this solution, copper sleeves are provided between the rotating shaft and the shaft hole, and between the rotating shaft and the support.

[0018] As a further improvement and optimization of this solution, each of the copper sleeves and the rotating shaft is provided with grease;

[0019] The upper cam and the lower cam are fitted with sealing covers, which are sealed to the top of the support.

[0020] The positive effects of the above technical solution compared with the existing technology are:

[0021] (1) In this invention, one of the roller components in the roller mechanism supports the upper section of the drag chain, effectively preventing the drag chain from hanging and falling, thereby avoiding friction, pulling and damage to the drag chain, improving its stability and service life, and reducing on-site maintenance costs.

[0022] (2) Each idler mechanism in this invention has two synchronously rotating idler assemblies. The bending section automatically pushes one idler assembly so that the other idler assembly supports or detaches from the upper section without affecting the normal movement of the cable chain. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the roller mechanism of a lifting roller device applied to a traveling shaft according to the present invention;

[0024] Figure 2 This is a cross-sectional view of the roller mechanism of a lifting roller device applied to a traveling shaft according to the present invention;

[0025] Figure 3 This is a schematic diagram of the installation of the upper and lower cams of a lifting roller device applied to a traveling shaft according to the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of a locking bolt for a lifting roller device applied to a traveling shaft according to the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of a lifting roller device applied to a traveling shaft according to the present invention, with the upper and lower cams fully engaged;

[0028] Figure 6 This is a schematic diagram of the installation of the drag chain and roller mechanism of a lifting roller device applied to a traveling shaft according to the present invention;

[0029] Figure 7 This is a schematic diagram of the installation of the drag chain and roller mechanism of a lifting roller device applied to a traveling shaft according to the present invention;

[0030] In the attached diagram: 1. Support assembly; 2. Rotating frame; 3. Idler roller assembly; 4. Rotating shaft; 5. Upper cam; 6. Lower cam; 7. Sealing cover; 8. Locking bolt; 9. Cable chain; 11. Base; 12. Support cylinder; 13. Base; 14. Copper sleeve; 111. Bearing seat; 121. Threaded hole; 1111. Shaft hole; 51. Mating block; 61. Mating groove; 91. Upper section; 92. Bending section; 93. Lower section. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0032] Figure 1 This is a schematic diagram of the overall structure of the idler mechanism of a lifting idler device applied to a traveling shaft according to the present invention. Figure 2 This is a cross-sectional view of the roller mechanism of a lifting roller device applied to a traveling shaft according to the present invention. Figure 3 This is a schematic diagram of the installation of the upper and lower cams of a lifting roller device applied to a traveling shaft according to the present invention. Figure 4 This is a schematic diagram of the structure of a locking bolt for a lifting roller device applied to a traveling shaft according to the present invention. Figure 5 This is a schematic diagram of the structure of a lifting roller device applied to a traveling shaft according to the present invention, with the upper and lower cams fully engaged. Figure 6 This is a schematic diagram of the installation of a drag chain and roller assembly in a lifting roller device for a traveling shaft according to the present invention. Figure 7 This is a schematic diagram of the installation of a drag chain and idler assembly for a lifting idler device applied to a traveling shaft according to the present invention. Figures 1 to 7 The diagram illustrates a preferred embodiment of a lifting idler device applied to a traveling shaft for supporting a cable chain 9. It includes several idler mechanisms evenly distributed along the upper section 91 of the cable chain 9 to support the bottom of the upper section 91. Each idler mechanism includes a support assembly 1, a rotating frame 2, and two idler assemblies 3. The rotating frame 2 is rotatably mounted on the support assembly 1 via a rotating component. The two idler assemblies are mounted on the rotating frame 2 and distributed at a 90-degree angle. When one idler assembly 3 is positioned along the width direction of the cable chain 9 and supports the bottom of the upper section 91, the other idler assembly is located on the side of the cable chain 9 and parallel to the upper section 91. When the curved section 92 of the cable chain 9 passes the idler assemblies 3 distributed along the width direction of the cable chain 9, the curved section 92 of the cable chain 9 can rotate the idler assembly 3 90 degrees around the rotating component, causing the other idler assembly 3 to rotate to the inside or outside of the curved section 92 of the cable chain 9.

[0033] In this embodiment, one of the roller components 3 in the roller mechanism supports the upper section 91 of the drag chain 9, effectively preventing the drag chain 9 from hanging and falling, thereby avoiding friction, pulling and damage to the drag chain 9, improving its stability and service life, and reducing on-site maintenance costs.

[0034] Specifically, in this embodiment, the free end of the upper section 91 of the drag chain 9 is used as the moving end, and the free end of the lower section 93 is used as the fixed end. When the moving end moves to the left, the length of the upper section 91 becomes longer and the length of the lower section 93 becomes shorter. The curved section 92 moves to the left. When the inner side of the curved section 92 contacts one of the idler roller assemblies 3 in the idler roller mechanism, it will rotate the idler roller assembly 3 by 90 degrees so that the idler roller assembly 3 rotates to the side of the drag chain 9 and is parallel to the moving direction of the drag chain 9. At this time, the other idler roller assembly 3 rotates to the outside of the curved section 92.

[0035] When the moving end moves to the right, the length of the upper section 91 becomes shorter and the length of the lower section 93 becomes longer. The curved section 92 moves to the right. When the outer side of the curved section 92 contacts another idler assembly 3, it will push the idler assembly 3 to reset and rotate 90 degrees, and make one idler assembly 3 rotate to the inside of the drag chain 9, and support the bottom of the upper section 91.

[0036] In this embodiment, each idler mechanism has two synchronously rotating idler assemblies 3. The bending section 92 automatically pushes one idler assembly 3 so that the other idler assembly 3 supports the upper section 91 or detaches from the upper section 91, without affecting the normal movement of the cable chain 9.

[0037] More preferably, the idler assembly 3 includes a main shaft and an idler rotatably mounted on the main shaft. One end of the main shaft is connected to the rotating frame 2. When the idler supports the upper section 91, the idler can rotate along with the upper section 91 when the upper section 91 moves horizontally, thereby reducing the friction between the idler and the upper section 91, reducing frictional damage to the upper section 91, and further improving the service life of the cable chain 9.

[0038] As a further improvement and optimization of this solution, the rotating component is a rotating shaft 4. The top of the rotating shaft 4 is connected to the rotating frame 2, and the bottom is rotatably and longitudinally slidably connected to the support assembly 1.

[0039] As a further improvement and optimization of this solution, the outer side of the rotating shaft 4 is coaxially fitted with an upper cam 5 and a lower cam 6. The upper cam 5 is connected to the rotating frame 2, and the lower cam 6 is connected to the support assembly 1. The bottom of the upper cam 5 is circumferentially distributed with several mating blocks 51, and the top of the lower cam 6 is circumferentially distributed with several mating grooves 61 that match the several mating blocks 51. The several mating blocks 51 are respectively matched and positioned in the several mating grooves 61. When the curved section 92 of the drag chain 9 moves the idler assembly 3, the mating block 51 can slide from the side wall of the corresponding mating groove 61 into the adjacent mating groove 61, so that the idler assembly 3 rotates ninety degrees.

[0040] In this embodiment, when the upper section 91 moves horizontally past the idler assembly 3 in the supported state, the friction between the engaging block 51 and the engaging groove 61 is used to keep the idler assembly 3 consistent with the width of the drag chain 9, thereby improving the support stability. When the curved section 92 passes through the idler assembly 3, the idler assembly 3 is moved so that the engaging block 51 overcomes the friction with the engaging groove 61 and slides into the adjacent engaging groove 61 along the side wall of the engaging groove 61. At this time, the idler assembly 3 rotates ninety degrees.

[0041] As a further improvement and optimization of this solution, in order to enable the mating block 51 to slide between two adjacent mating blocks 51, both sides of the mating groove 61 are inclined surfaces, and the inclined surfaces guide the mating block 51.

[0042] As a further improvement and optimization of this solution, when the support assembly in the roller mechanism does not need to rotate, a locking structure is also provided between the support assembly 1 and the rotating shaft 4 to lock the rotating shaft 4, thereby improving applicability.

[0043] As a further improvement and optimization of this solution, the locking structure includes at least one locking bolt 8 threaded onto the bracket assembly 1. By tightening the locking bolt 8, the locking bolt 8 is made to abut against the side wall of the rotating shaft 4 and lock it in place.

[0044] As a further improvement and optimization of this solution, the bracket assembly 1 includes a base 1311, a support cylinder 12, and a support. The bottom of the rotating shaft 4 is longitudinally slidable and rotatably mounted on the base 1311. The support cylinder 12 is coaxially sleeved on the outside of the rotating shaft 4, and the bottom of the support cylinder 12 is connected to the base 1311. The side wall of the support cylinder 12 has at least one threaded hole 121. The locking bolt 8 is threaded into the threaded hole 121. The support is mounted on the top of the support cylinder 12, and the top of the rotating shaft 4 is rotatable and longitudinally slidable through the support and connected to the rotating frame 2.

[0045] In this embodiment, the locking bolt 8 can be selectively installed. When the roller assembly 3 needs to rotate, the locking bolt 8 can be removed to prevent the locking bolt 8 from blocking the threaded hole 121 and causing the air pressure inside the support cylinder 12 to affect the rotation of the roller assembly 3.

[0046] As a further improvement and optimization of this solution, the base 1311 has a bearing seat 111, the top of the bearing seat 111 has a shaft hole 1111, and the bottom of the rotating shaft 4 can slide longitudinally and be rotatably installed in the shaft hole 1111.

[0047] As a further improvement and optimization of this solution, in order to reduce the frictional damage between the rotating shaft 4 and the bearing housing 111 and the support, copper sleeves 14 are provided between the rotating shaft 4 and the shaft hole 1111, and between the rotating shaft 4 and the support.

[0048] As a further improvement and optimization of this solution, in order to further reduce frictional damage caused by the rotating shaft 4, grease is provided between each copper sleeve 14 and the rotating shaft 4.

[0049] Among them, the upper cam 5 and the lower cam 6 are fitted with sealing covers 7, which are sealed to the top of the support to prevent grease leakage.

[0050] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A lifting roller device applied to a traveling axle for supporting a cable chain, characterized in that, include: A plurality of idler roller mechanisms, the plurality of said idler roller mechanisms being equally spaced along the upper section of the cable chain, are used to support the bottom of the upper section of the cable chain, each said idler roller mechanism comprising: Support assembly; A rotating frame, which is rotatably mounted on the support assembly via a rotating component; Two idler roller assemblies are mounted on the rotating frame and distributed at a 90-degree angle. When one of the idler roller assemblies is aligned with the width direction of the cable chain and supports the bottom of the upper section of the cable chain, the other idler roller assembly is located on the side of the cable chain and parallel to the upper section of the cable chain. When the curved section of the cable chain passes the idler roller assemblies distributed along the width direction of the cable chain, the curved section of the cable chain can deflect the idler roller assembly to rotate 90 degrees around the rotating member, so that the other idler roller assembly rotates to the inside or outside of the curved section of the cable chain.

2. The lifting roller device applied to the traveling shaft according to claim 1, characterized in that, The rotating component is a rotating shaft, the top of which is connected to the rotating frame, and the bottom of which is rotatable and longitudinally slidable to the support assembly.

3. The lifting roller device applied to the traveling shaft according to claim 2, characterized in that, The rotating shaft is coaxially fitted with an upper cam and a lower cam. The upper cam is connected to the rotating frame, and the lower cam is connected to the support assembly. The bottom of the upper cam has a plurality of engaging blocks distributed circumferentially, and the top of the lower cam has a plurality of engaging grooves that match the engagement blocks. The engagement blocks are respectively matched and positioned in the engagement grooves. When the curved section of the drag chain moves the idler assembly, the engagement block can slide from the side wall of the corresponding engagement groove into the adjacent engagement groove, so that the idler assembly rotates ninety degrees.

4. The lifting roller device applied to the traveling shaft according to claim 3, characterized in that, Both sides of the fitting groove are inclined surfaces.

5. The lifting roller device applied to the traveling shaft according to claim 3, characterized in that, A locking structure is also provided between the bracket assembly and the rotating shaft for locking the rotating shaft.

6. The lifting roller device applied to the traveling shaft according to claim 5, characterized in that, The locking structure includes at least one locking bolt threaded onto the bracket assembly, which, when tightened, abuts against the sidewall of the rotating shaft.

7. The lifting roller device applied to the traveling shaft according to claim 6, characterized in that, The support assembly includes: The base on which the bottom of the rotating shaft is longitudinally slidable and rotatably mounted; A support cylinder is coaxially sleeved outside the rotating shaft, and the bottom of the support cylinder is connected to the base. The side wall of the support cylinder has at least one threaded hole, and the locking bolt is threaded into the threaded hole. A support is mounted on top of the support cylinder, and the top of the rotating shaft rotatably and longitudinally slides through the support and is connected to the rotating frame.

8. The lifting roller device applied to the traveling shaft according to claim 7, characterized in that, The base has a bearing seat, the top of the bearing seat has a shaft hole, and the bottom of the rotating shaft is longitudinally slidable and rotatably mounted in the shaft hole.

9. The lifting roller device applied to the traveling shaft according to claim 8, characterized in that, Copper sleeves are provided between the rotating shaft and the shaft hole, and between the rotating shaft and the support.

10. The lifting roller device applied to the traveling shaft according to claim 9, characterized in that, Each of the copper sleeves is provided with grease between itself and the rotating shaft; The upper cam and the lower cam are fitted with sealing covers, which are sealed to the top of the support.

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