Traction steel wire rope carrier roller structure

Abstract

The utility model discloses a traction steel wire rope carrier roller structure, and belongs to the field of traction equipment. According to the technical scheme, the traction steel wire rope carrier roller structure comprises a mandrel and an inner sleeve, a center hole is formed in the center of the inner sleeve in a penetrating mode, sinking grooves are formed in the two ends of the inner sleeve, the sinking grooves and the center hole are coaxially arranged, the mandrel is inserted into the center hole, bearings are installed in the two sinking grooves respectively, and end covers are installed at the two ends of the inner sleeve respectively. Fastening structures are arranged between the end covers and the inner sleeve, and the two ends of the mandrel penetrate out of the end covers on the two sides respectively. According to the scheme, the bearing is arranged between the mandrel and the inner sleeve, the bearing is limited in the counter bore through the end cover, the end cover does not provide supporting force any more, meanwhile, the end cover is fixedly connected with the inner sleeve, the end cover is prevented from being disengaged in the rotating process, then it is guaranteed that the bearing is installed stably, and the damage risk of the carrier roller is reduced.

Description

Technical Field

[0001] The utility model relates to the field of traction equipment, in particular to a traction wire rope roller structure. Background Art

[0002] With the continuous increase in the loading volume of ports, wire ropes are the main operating mechanism for pulling trains to load. For the traction wire ropes running over long distances, multiple roller structures are arranged on the site to support the wire ropes and keep them above the ground to avoid dragging friction. The rollers are used in large numbers on site and are widely distributed.

[0003] Under the action of the pressure and drag rotation of the traction wire rope, the roller is easily damaged. Specifically, in the roller structure described in patent CN204281120U, the two ends of the roller are connected to the end cover through bearings, and the end cover is connected to the installation base. The roller rotates relative to the end cover, and the pressure acts on the bearing and the end cover. During operation, the end cover and the spring are easily separated from the roller, and then damaged.

[0004] The winch's traction wire rope support rollers have a high damage rate over long periods of operation. Damaged support rollers can easily damage the wire rope, reducing its service life. Therefore, damaged rollers need to be replaced promptly. This requires workers to inspect each roller along the traction wire rope, which takes a long time and requires carrying multiple spare parts, which is physically demanding and labor-intensive. Summary of the Invention

[0005] The utility model aims to solve the problem that the bearings and end covers of the current wire rope rollers are easily dislodged and damaged, and provides a traction wire rope roller structure with a more stable structure.

[0006] To solve the above-mentioned problem, the technical solution adopted by the present invention is a traction wire rope roller structure, comprising a core shaft and an inner sleeve. The center of the inner sleeve is provided with a center hole, and both ends of the inner sleeve are provided with countersunk grooves, which are coaxially arranged with the center hole. The core shaft is inserted into the center hole, and bearings are respectively installed in the two countersunk grooves. End caps are also respectively installed at both ends of the inner sleeve, and a fastening structure is provided between the end caps and the inner sleeve. The two ends of the core shaft pass through the end caps on both sides. In this solution, the bearing is arranged between the core shaft and the inner sleeve, and the bearing is confined in the countersunk hole by the end caps. The end caps no longer provide supporting force. At the same time, the end caps are fixedly connected to the inner sleeve to prevent them from falling out during rotation, thereby ensuring stable bearing installation and reducing the risk of damage to the roller.

[0007] Preferably, the depth of the groove is greater than the thickness of the bearing, and the end cap is provided with a boss on a side close to the inner sleeve, the outer contour of the boss being adapted to the groove, and the boss being inserted into the groove, so that the connection between the inner sleeve and the end cap is more stable.

[0008] Preferably, a first sealing ring is installed in the central hole of the end cover to prevent impurities such as water and dust from entering the sink where the bearing is located and reduce bearing wear.

[0009] Preferably, a second sealing ring is installed on the outer periphery of the boss, and the second sealing ring is pressed between the joint surface of the end cover and the inner sleeve.

[0010] Preferably, the fastening structure includes a plurality of through holes provided on the end cover. The plurality of through holes are evenly arranged along the circumferential direction of the end cover. Threaded holes are provided at corresponding positions on the end faces of both ends of the inner sleeve, and bolts are jointly installed in the threaded holes and the through holes. The flange connection structure is adopted, and the installation is more firm.

[0011] Preferably, it further includes an outer sleeve, and the outer sleeve is sleeved outside the inner sleeve.

[0012] Preferably, the outer diameter of the end cover is greater than the outer diameter of the outer sleeve. The end cover limits the outer sleeve at both ends.

[0013] Preferably, mounting buckles are provided on the outer peripheral surfaces of both ends of the mandrel. By installing both ends of the mandrel on the mounting base through the mounting buckles, axial movement of the idler can be avoided.

[0014] It can be seen from the above technical solutions that the advantages of the present utility model are as follows: The present solution adopts a support structure of bearing - mandrel and inner sleeve. The end cover is fastened to the inner sleeve and limits the bearing, preventing the end cover and the bearing from falling off the inner sleeve, avoiding damage to the idler, thereby reducing the maintenance frequency and saving labor; the idler structure is reasonably designed, operates stably, and the combined installation of each component is convenient. Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic structural diagram of the specific embodiment of the present utility model.

[0017] Figure 2 For Figure 1 the enlarged view at A in

[0018] Main Reference Numeral Description

[0019] 1. Mandrel, 2. Inner sleeve, 3. Bearing, 4. End cover, 5. Outer sleeve, 6. First sealing ring, 7. Second sealing ring. Specific Embodiment

[0020] To make the objectives, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the specific embodiments. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this patent.

[0021] As Figure 1 , 2 shown, a traction wire rope support structure includes a core shaft 1, and also includes an inner sleeve 2 and an outer sleeve 5. A central hole is provided through the center of the inner sleeve 2, and sinking grooves are provided at both ends of the inner sleeve 2. The sinking grooves are coaxially arranged with the central hole. The core shaft 1 is inserted into the central hole. Bearings 3 are respectively installed in the two sinking grooves. The bearings 3 preferably adopt SKF6307-2Z / C3. By using large-diameter bearings, the roller runs more stably and is not easily disengaged. The depth of the sinking groove is greater than the thickness of the bearing 3. End caps 4 are respectively installed at both ends of the inner sleeve 2. A convex platform is provided on the surface of the end cap 4 close to the inner sleeve 2. The outer contour of the convex platform is adapted to the sinking groove. The convex platform is inserted into the sinking groove. Both ends of the core shaft 1 respectively pass through the end caps 4 on both sides. Mounting bayonets are provided on the outer peripheral surfaces at both ends of the core shaft 1 for connection with a mounting base (such as a pedestal on the ground). A fastening structure is provided between the end cap 4 and the inner sleeve 2. Specifically, the fastening structure includes a plurality of through holes provided on the end cap 4. The plurality of through holes are evenly arranged along the circumferential direction of the end cap 4. Threaded holes are provided at corresponding positions on the end surfaces at both ends of the inner sleeve 2. Bolts are jointly installed in the threaded holes and the through holes; The outer sleeve 5 is sleeved outside the inner sleeve 2. The circumferential dimension of the outer sleeve 5 is the same as that of the inner sleeve. The outer diameter of the end cap 4 is greater than the outer diameter of the outer sleeve 5.

[0022] A first sealing ring 6 is installed in the central hole of the end cap 4, and a second sealing ring 7 is installed on the outer periphery of the convex platform. The second sealing ring is pressed between the joint surface of the end cap 4 and the inner sleeve 2.

[0023] It can be seen from the above embodiments that the beneficial effects of the present utility model are as follows: The present solution adopts a support structure of bearings-core shaft and inner sleeve. The end cap is fastened to the inner sleeve and limits the bearing, preventing the end cap and the bearing from falling off the inner sleeve, avoiding damage to the roller, thereby reducing the maintenance frequency and saving manual labor; The roller structure is reasonably designed, runs stably, and the components are conveniently assembled and installed.

[0024] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A structure of a traction wire rope idler, including a core shaft (1), characterized in that, It further includes an inner sleeve (2). A central hole is provided through the center of the inner sleeve (2). Sinking grooves are provided at both ends of the inner sleeve (2), and the sinking grooves are coaxially arranged with the central hole. A mandrel (1) is inserted into the central hole. Bearings (3) are respectively installed in the two sinking grooves. End caps (4) are respectively installed at both ends of the inner sleeve (2). A fastening structure is provided between the end caps (4) and the inner sleeve (2). Both ends of the mandrel (1) respectively pass through the end caps (4) on both sides.

2. The idler structure for hauling wire ropes according to claim 1, wherein, The depth of the sinking groove is greater than the thickness of the bearing (3). A boss is provided on the surface of the end cap (4) close to the inner sleeve (2), and the outer contour of the boss is adapted to the sinking groove. The boss is inserted into the sinking groove.

3. The structure of the traction wire rope idler according to claim 1, wherein, A first sealing ring (6) is installed in the central hole of the end cap (4).

4. The structure of the traction wire rope idler according to claim 2, characterized in that, A second sealing ring (7) is installed on the outer periphery of the boss, and the second sealing ring is pressed between the joint surface of the end cap (4) and the inner sleeve (2).

5. The structure of the traction wire rope idler according to claim 1, characterized in that, The fastening structure includes a plurality of through holes provided on the end cap (4). The plurality of through holes are uniformly arranged along the circumferential direction of the end cap (4). Threaded holes are provided at corresponding positions on the end faces at both ends of the inner sleeve (2). Bolts are jointly installed in the threaded holes and the through holes.

6. The structure of the traction wire rope idler according to claim 1, characterized in that, It further includes an outer sleeve (5). The outer sleeve (5) is sleeved outside the inner sleeve (2).

7. The idler structure for hauling wire rope according to claim 6, characterized in that, The outer diameter of the end cap (4) is greater than the outer diameter of the outer sleeve (5).

8. The idler structure for traction steel wire rope according to claim 1, wherein Mounting bayonets are provided on the outer peripheral surfaces at both ends of the mandrel (1).

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