Bearing head device and dragging pulley

Abstract

The utility model discloses a load-bearing head device and a dragging pulley, belongs to the field of ocean engineering equipment, and is used for solving the problem that an existing load-bearing head device is difficult to disassemble and flexibly rotates, the load-bearing head device comprises a connecting seat, a rotating shaft, a load-bearing assembly and a locking piece, the connecting seat is used for being connected with a pulley device and is provided with a sleeve hole, and a bearing is arranged in the sleeve hole; the rotating shaft is used for connecting a lifting point and is rotatably mounted in the sleeve hole through a bearing, two ends of the rotating shaft extend out of the sleeve hole, one end is provided with a first shaft shoulder, and the first shaft shoulder is in contact with the upper end of the sleeve hole to limit the rotating shaft to move towards the lower end of the sleeve hole; the bearing assembly is fixedly connected to the lower end of the connecting base and used for supporting the connecting base. The locking piece is detachably and fixedly connected with the rotating shaft through a bolt and is limited at the lower end of the bearing assembly; the dragging pulley comprises a load-bearing head device. The bearing head device can be conveniently detached, the roller skating device can rotate relative to a hoisting point, and the bearing head device has the advantages of being compact in structure, capable of sealing and lubricating a bearing surface and convenient to maintain.

Description

Technical Field

[0001] The utility model relates to the field of marine engineering equipment, in particular to a load-bearing head device and a towing pulley. Background Art

[0002] The existing towing pulley consists of a bearing head device and a pulley device, among which the bearing head device is mainly used to connect the lifting point and the fixed pulley device. In order to enable the roller pulley device to rotate 360 ​​degrees relative to the lifting point, the bearing head device and the lifting point are connected by a swivel. The swivel includes two parts that can rotate relative to each other. The two parts are respectively connected to the lifting point and the bearing head device, so that the bearing head device can rotate around the swivel relative to the lifting point. The defects and shortcomings of the bearing head device in the prior art are:

[0003] The load-bearing head device is usually a combination of a threaded locking structure and a plane rolling bearing, which is then locked in the radial direction with bolts or pins. It is inconvenient to disassemble. The roller device and the load-bearing head device rotate relative to the lifting point, which requires the support of other parts such as a swivel.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a bearing head device and a towing pulley, which at least solve the technical problem of how to realize the detachability of the bearing head device and enable the roller skating device to rotate relative to the lifting point through the bearing head device.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0009] A load-bearing head device, comprising:

[0010] A connecting seat, the connecting seat is used to connect the pulley device and is provided with a sleeve hole, and a bearing is provided in the sleeve hole;

[0011] A rotating shaft, the rotating shaft is used to connect the lifting point and is rotatably installed in the sleeve hole through the bearing, the two ends of the rotating shaft extend out of the sleeve hole, and the upper end is provided with a first shaft shoulder, the first shaft shoulder contacts the end of the upper end of the sleeve hole to limit the movement of the rotating shaft toward the lower end of the sleeve hole;

[0012] A load-bearing component, fixedly connected to the lower end of the connecting seat, and used to support the connecting seat;

[0013] The locking member is detachably fixedly connected to the rotating shaft by bolts and is limited at the lower end of the load-bearing component so that the connecting seat and the load-bearing component are fixed relative to the rotating shaft in the axial direction of the rotating shaft.

[0014] In some embodiments, the bearing is a plane bearing, and there are two plane bearings, which are respectively arranged at both ends of the sleeve hole; the mating surface between the plane bearing and the rotating shaft is provided with a lubrication groove, and the lubrication groove is arranged around the rotating shaft for accommodating lubricant.

[0015] In some embodiments, the plane bearing is provided with an outer ring extending outward, the outer ring is limited between the first shaft shoulder and the connecting seat, or between the connecting seat and the load-bearing component, and the mating surfaces of the plane bearing and the load-bearing component are provided with lubrication grooves.

[0016] In some embodiments, a sealing ring is provided at the contact surface between the first shaft shoulder and the connecting seat and at the connection between the receiving assembly and the connecting seat, and the sealing ring is arranged concentrically with the sleeve hole.

[0017] In some embodiments, the load-bearing assembly includes a ring plate and a load-bearing sleeve, the ring plate and the load-bearing sleeve are provided with a through hole, and can be rotatably sleeved on the outside of the rotating shaft through the through hole, and the ring plate and the load-bearing sleeve are detachably fixed to the lower end of the connecting seat in sequence from top to bottom by bolts; the rotating shaft is provided with a second shoulder, and the load-bearing sleeve contacts the second shoulder to limit the movement of the load-bearing sleeve relative to the rotating shaft in the axial direction of the rotating shaft.

[0018] In some embodiments, the load-bearing head device also includes an anti-slip baffle, which is fixedly connected to the lower end of the connecting seat and is limited to the periphery of the load-bearing component to limit the movement of the load-bearing component in the radial direction of the rotating shaft.

[0019] In some embodiments, the connecting seat is provided with two pin holes, and the pin holes are symmetrically arranged on opposite sides of the rotating shaft, and the pulley device and the connecting seat are connected through the pin holes and the pin shaft.

[0020] The utility model also provides a towing pulley, comprising the above-mentioned load-bearing head device and a pulley device connected with the load-bearing head device.

[0021] In some embodiments, the pulley device includes a wheel frame, a pulley and a side plate, the wheel frame is fixedly connected to the connecting seat, the pulley is rotatably connected to the wheel frame, one end of the side plate is rotatably connected to the wheel frame, and the other end is detachably connected to the connecting seat; when the side plate is connected to the connecting seat, a cable limiting channel is formed between the wheel frame, the pulley and the side plate; when the side plate is separated from the connecting seat, the side plate can rotate around the wheel frame to open the limiting channel for the cable to be inserted; a stop block is provided on the wheel frame, and the stop block is used to support the side plate when the side plate is separated from the connecting seat, so that the side plate is limited to a preset position.

[0022] In some embodiments, the side plate and the pulley are connected to the wheel frame through a shaft, and the towing pulley also includes a rope guide device for guiding the cable, and the rope guide device includes a rope guide frame, and the rope guide frame is connected to the shaft through a deep groove ball bearing. A flange is provided at the end of the shaft, and the flange is used to limit the movement of the rope guide frame and the deep groove ball bearing in the axial direction of the shaft.

[0023] (III) Beneficial effects

[0024] Compared with the prior art, the load-bearing head device and the towing pulley provided by the utility model have the following features:

[0025] Beneficial effects:

[0026] The rotating shaft of the load-bearing head device is connected to the lifting point, and the connecting seat is connected to the pulley device. When towing, the towing weight acts on the connecting seat, the load-bearing assembly, the locking member and the rotating shaft in sequence. Since the rotating shaft and the connecting seat can rotate relative to each other and realize self-rotation, the pulley device can be rotated relative to the lifting point through the load-bearing head device; at the same time, the locking member and the rotating shaft are detachably connected by bolts. When the locking member is removed from the rotating shaft, the load-bearing assembly and the connecting seat can also be detached from the lower end of the rotating shaft, so that the load-bearing head device can be easily disassembled. It can be seen that the load-bearing head device of the utility model can not only be easily disassembled, but also realize the rotation of the roller pulley device relative to the lifting point through self-rotation, and has the advantages of compact structure, flexible rotation and convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional diagram of the load-bearing head device in the embodiment.

[0028] Figure 2 It is a cross-sectional view of the load-bearing head device in the embodiment.

[0029] Figure 3 It is an exploded view of the bearing head device in the embodiment.

[0030] Figure 4 It is a three-dimensional diagram of the drag pulley in the embodiment.

[0031] Figure 5It is a three-dimensional view of the towing pulley when the side plate rotates to a safe position in the embodiment.

[0032] Reference numerals:

[0033] Connecting seat 1, sleeve hole 11, plane bearing 12, sealing ring 13, lubrication groove 101, outer ring 102, pin hole 103;

[0034] Rotating shaft 2, first shaft shoulder 21, second shaft shoulder 22, hinge hole 23;

[0035] Load bearing assembly 3, ring plate 31, load bearing sleeve 32;

[0036] Locking member 4, anti-drop baffle 5;

[0037] Pulley device 6, wheel frame 61, pulley 62, side plate 63, limiting channel 64, pin 65, block 66, shaft 67, protrusion 68, rope guide device 69, rope guide frame 601, deep groove ball bearing 602, flange 603. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0039] The existing load-bearing head device is usually a combination of a threaded locking structure and a plane rolling bearing, which is then locked in the radial direction with bolts or pins. It is inconvenient to disassemble. The roller device and the load-bearing head device rotate relative to the lifting point, which requires swivels and other parts, and the gap of the load-bearing surface must be repeatedly adjusted during installation.

[0040] In order to solve the above technical problems, this embodiment provides a load-bearing head device, please refer to Figures 1 to 3 As shown, Figure 1 is a three-dimensional diagram of the load-bearing head device in the embodiment, Figure 2 is a cross-sectional view of the load-bearing head device in the embodiment, Figure 3 It is an exploded view of the bearing head device in the embodiment.

[0041] The load-bearing head device of this embodiment includes: a connecting seat 1, a rotating shaft 2, a load-bearing component 3 and a locking member 4.

[0042] The connecting seat 1 is used to connect the pulley device 6 and is provided with a sleeve hole 11. A bearing is provided in the sleeve hole 11, and the bearing can be a plane bearing 12.

[0043] The rotating shaft 2 is used to connect the lifting point and is rotatably installed in the sleeve hole 11 through a bearing. Both ends of the rotating shaft 2 extend out of the sleeve hole 11, and one end is provided with a first shoulder 21. The first shoulder 21 contacts the end of the upper end of the sleeve hole 11 to limit the movement of the rotating shaft 2 toward the lower end of the sleeve hole 11.

[0044] The load-bearing component 3 is fixedly connected to the lower end of the connecting seat 1 and is used to support the connecting seat 1 , that is, the load-bearing of the connecting seat 1 can act on the load-bearing component 3 .

[0045] The locking member 4 is detachably fixed to the rotating shaft 2 by bolts and is limited at the lower end of the load-bearing component 3 so that the connecting seat 1 and the load-bearing component 3 are fixed relative to the rotating shaft 2 in the axial direction of the rotating shaft 2, that is, the connecting seat 1 and the load-bearing component 3 are fixed between the first shaft shoulder 21 and the locking member 4.

[0046] It can be understood that the “upper end” and “lower end” refer to the upper and lower relationship of the load-bearing head device when it is in working condition and bearing load.

[0047] The load-bearing head device of the above technical solution is connected to the lifting point through the rotating shaft 2, and is connected to the pulley device 6 through the connecting seat 1. When towing, the force generated by towing acts on the connecting seat 1, the load-bearing component 3, the locking member 4 and the rotating shaft 2 in sequence. Since the rotating shaft 2 and the connecting seat 1 can rotate relative to each other and realize self-rotation, the pulley device 6 can be rotated relative to the lifting point through the load-bearing head device; at the same time, the locking member 4 and the rotating shaft 2 are detachably connected by bolts. When the locking member 4 is removed from the rotating shaft 2, the load-bearing component 3 and the connecting seat 1 can also be separated from the rotating shaft 2, so that the load-bearing head device can be disassembled. It can be seen that the load-bearing head device of the above technical solution can not only be disassembled, but also realize the rotation of the roller pulley device relative to the lifting point through self-rotation, which has the advantages of compact structure and flexible rotation.

[0048] In one embodiment of the above-mentioned rotating shaft 2 being installed in the sleeve hole 11 through a bearing, see Figure 2 and Figure 3 As shown, the bearing is a plane bearing 12, and there are two plane bearings 12, which are respectively arranged at both ends of the sleeve hole 11; the mating surface of the plane bearing 12 and the rotating shaft 2 is provided with a lubrication groove 101, and the lubrication groove 101 is arranged around the rotating shaft 2 to accommodate a lubricant, and the friction between the plane bearing 12 and the rotating shaft 2 is reduced by the lubricant, thereby improving the smoothness of the rotation of the rotating shaft 2.

[0049] In one embodiment of the above-mentioned sleeve hole 11, a bearing is arranged in the sleeve hole 11. Figure 2 and Figure 3 As shown, the plane bearing 12 is provided with an outer ring 102 extending outward, and the outer ring 102 is limited between the first shaft shoulder 21 and the connecting seat 1, or between the connecting seat 1 and the load-bearing component 3. The mating surfaces of the plane bearing 12 and the load-bearing component 3 are provided with a lubrication groove 101. The lubrication groove 101 is arranged around the rotating shaft 2 for accommodating a lubricant. The lubricant reduces the friction between the plane bearing 12 and the load-bearing component 3, thereby improving the smoothness of the rotation of the rotating shaft 2.

[0050] To improve water and dust resistance, refer to Figure 2As shown, a sealing ring 13 is provided at the contact surface between the shaft shoulder and the connecting seat 1 and at the connection between the receiving assembly and the connecting seat 1. The sealing ring 13 is arranged concentrically with the sleeve hole 11. The sealing ring 13 reduces the risk of water and dust entering the sleeve hole 11, ensures the flexible rotation of the rotating shaft 2, and extends the service life of the bearing head device.

[0051] In one embodiment of the load-bearing assembly 3 connected to the lower end of the connecting seat 1 and supporting the connecting seat 1, see Figure 2 and Figure 3 As shown, the load-bearing component 3 includes a ring plate 31 and a load-bearing sleeve 32. The ring plate 31 and the load-bearing sleeve 32 are provided with through holes, and can be rotatably sleeved on the outside of the rotating shaft 2 through the through holes. The ring plate 31 and the load-bearing sleeve 32 are detachably fixed to the lower end of the connecting seat 1 from top to bottom by bolts; the rotating shaft 2 is provided with a second shoulder 22, and the load-bearing sleeve 32 contacts the second shoulder 22 to limit the movement of the load-bearing sleeve 32 relative to the rotating shaft 2 in the axial direction of the rotating shaft 2. In this arrangement, the ring plate 31 is used to contact and bear the load-bearing sleeve 32, playing the role of a plane bearing, and the load-bearing component 3 is locked and fixed as a whole in an axial and radial fixing manner. The force applied can directly act on the rotating shaft 2, so that the overall force of the device is more uniform, which can reduce the problem of excessive local stress and reduce the requirements for the structural strength of the locking member 4 and the bolt connection strength.

[0052] For example, see Figure 3 As shown, the above-mentioned load-bearing sleeve 32 is a split structure, including two half-ring parts. During installation, the two half-ring parts are fixed to the lower end of the ring plate 31 by bolts and are relatively arranged on the second shaft shoulder 22 to form an annular load-bearing sleeve 32.

[0053] Exemplarily, the load-bearing sleeve 32 is divided into two parts, which are radially locked with the rotating shaft 2 by bolts, and the load-bearing sleeve 32 is then connected to the ring plate 31 by bolts to form a whole.

[0054] Exemplarily, the locking member 4 is detachably fixedly connected to the load-bearing sleeve 32 and the rotating shaft 2 respectively by bolts.

[0055] In order to further improve the firmness of the connection between the load-bearing component 3 and the locking member 4, refer to Figure 2 and Figure 3 As shown, the load-bearing head device also includes an anti-detachment baffle 5, which is fixedly connected to the lower end of the connecting seat 1 and is limited to the periphery of the load-bearing component 3, so as to limit the radial movement of the load-bearing component 3 in the rotating shaft 2 when the bolt falls off, and is used to ensure the safe operation of the load-bearing component again when the bolt falls off or loosens.

[0056] For example, see Figure 2 and Figure 3 As shown, an extension portion is provided at the connection between the locking member 4 and the connecting seat 1, and the extension portion is fitted with the bottom end of the connecting seat 1 and fixed by bolts.

[0057] In one embodiment of the connection seat 1 connecting the pulley device 6, see Figure 1 and Figure 2 As shown, the connecting seat 1 is provided with two pin holes 103 , and the pin holes 103 are symmetrically arranged on opposite sides of the rotating shaft 2 , and the pulley device 6 and the connecting seat 1 are connected via the pin holes 103 and the pin shaft 65 .

[0058] In one embodiment of the above-mentioned connecting shaft 2 to the lifting point, see Figure 1 and Figure 3 As shown, a hinge hole 23 is provided at the upper end of the rotating shaft 2, and the hinge hole 23 is used for hinge connection with the lifting point.

[0059] This embodiment provides a towing pulley, see Figure 4 and Figure 5 As shown, Figure 4 is a three-dimensional diagram of a drag pulley in an embodiment, Figure 5 It is a three-dimensional diagram of the towing pulley in the embodiment when the side plate rotates to the safe position. The towing pulley includes the above-mentioned load-bearing head device and the pulley device 6 connected to the load-bearing head device.

[0060] In one embodiment of the above-mentioned roller skating device, the pulley device 6 includes a wheel frame 61, a pulley 62 and a side plate 63, the wheel frame 61 is fixedly connected to the connecting seat 1, the pulley 62 is rotatably connected to the wheel frame 61, one end of the side plate 63 is rotatably connected to the wheel frame 61, and the other end is detachably connected to the connecting seat 1; when the side plate 63 is connected to the connecting seat 1, a cable limiting channel 64 is formed between the wheel frame 61, the pulley 62 and the side plate 63; when the side plate 63 is separated from the connecting seat 1, the side plate 63 can rotate around the wheel frame 61 to open the limiting channel 64 for the cable to be inserted; a stop block 66 is provided on the wheel frame 61, and the stop block 66 is used to support the side plate 63 when the side plate 63 is separated from the connecting seat 1, so that the side plate 63 is limited to a preset position. With such arrangement, the cable can be placed into the limiting channel 64 from the side of the pulley 62 when the side panel 63 is opened, thereby realizing the side cable releasing function; at the same time, the stopper 66 can block and limit the side panel 63, so that the side panel 63 can stay in the preset position and safe position when opening to release the cable, which is more convenient to use.

[0061] For example, see Figure 4 As shown, the wheel frame 61 is fixedly connected to the connecting seat 1 by bolts, the pulley 62 is connected to the wheel frame 61 by a shaft 67, one end of the side plate 63 is connected to the shaft 67, and the other end is connected to the connecting seat 1 through the above-mentioned pin shaft 65 and pin hole 103.

[0062] For example, see Figure 4 and Figure 5As shown, the shaft 67 is fixedly connected to the wheel frame 61, the stopper 66 is fixedly connected to the shaft 67, and a protrusion 68 is welded or integrally formed on the side plate 63. The rotation path of the protrusion 68 passes through the stopper 66. When the cable is released, the side plate 63 rotates toward the safe position until the protrusion 68 abuts against the stopper 66 and reaches the safe position.

[0063] For example, see Figure 4 and Figure 5 As shown, the towing pulley also includes a rope guide device 69 for guiding the cable, and the rope guide device 69 includes a rope guide frame 601, and the rope guide frame 601 is connected to the shaft 67 through a deep groove ball bearing 602. A flange 603 is provided at the end of the shaft 67, and the flange 603 is used to limit the movement of the rope guide frame 601 and the deep groove ball bearing 602 in the axial direction of the shaft 67. Compared with the traditional structure using oil-free bearings, the connection structure of the rope guide frame 601 is more flexible and reliable.

[0064] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A load-bearing head device, characterized in that: include: A connecting seat, the connecting seat is used to connect the pulley device and is provided with a sleeve hole, and a bearing is provided in the sleeve hole; A rotating shaft, the rotating shaft is used to connect the lifting point and is rotatably installed in the sleeve hole through the bearing, the two ends of the rotating shaft extend out of the sleeve hole, and the upper end is provided with a first shaft shoulder, the first shaft shoulder contacts the end of the upper end of the sleeve hole to limit the movement of the rotating shaft toward the lower end of the sleeve hole; A load-bearing component, fixedly connected to the lower end of the connecting seat, and used to support the connecting seat; The locking member is detachably fixedly connected to the rotating shaft by bolts and is limited at the lower end of the load-bearing component so that the connecting seat and the load-bearing component are fixed relative to the rotating shaft in the axial direction of the rotating shaft.

2. The load-bearing head device according to claim 1, characterized in that: The bearing is a plane bearing, and there are two plane bearings, which are respectively arranged at the two ends of the sleeve hole; the mating surface of the plane bearing and the rotating shaft is provided with a lubrication groove, and the lubrication groove is arranged around the rotating shaft for accommodating lubricant.

3. The load-bearing head device according to claim 2, characterized in that: The plane bearing is provided with an outer ring extending outward, and the outer ring is limited between the first shaft shoulder and the connecting seat, or between the connecting seat and the load-bearing component. The mating surfaces of the plane bearing and the load-bearing component are provided with lubrication grooves.

4. The load-bearing head device according to claim 1 or 2, characterized in that: A sealing ring is provided between the contact surface of the first shaft shoulder and the connecting seat and the connection between the receiving assembly and the connecting seat. The sealing ring is concentrically arranged with the sleeve hole.

5. The load-bearing head device according to claim 1, characterized in that: The load-bearing assembly includes a ring plate and a load-bearing sleeve, wherein the ring plate and the load-bearing sleeve are provided with through holes, and are rotatably sleeved on the outer side of the rotating shaft through the through holes, and the ring plate and the load-bearing sleeve are detachably fixed to the lower end of the connecting seat in sequence from top to bottom by bolts; The rotating shaft is provided with a second shaft shoulder, and the bearing sleeve contacts the second shaft shoulder to limit the bearing sleeve from moving relative to the rotating shaft in the axial direction of the rotating shaft.

6. The load-bearing head device according to claim 1, characterized in that: The load-bearing head device also includes an anti-slip baffle, which is fixedly connected to the lower end of the connecting seat and is limited to the periphery of the load-bearing component to limit the movement of the load-bearing component in the radial direction of the rotating shaft.

7. The load-bearing head device according to claim 1, characterized in that: The connecting seat is provided with two pin holes, and the pin holes are symmetrically arranged on opposite sides of the rotating shaft. The pulley device and the connecting seat are connected through the pin holes and the pin shaft.

8. A towing pulley, characterized in that: It comprises the load-bearing head device as described in any one of claims 1 to 7, and a pulley device connected to the load-bearing head device.

9. The traction pulley according to claim 8, characterized in that The pulley device comprises a wheel frame, a pulley and a side plate, wherein the wheel frame is fixedly connected to the connecting seat, the pulley is rotatably connected to the wheel frame, one end of the side plate is rotatably connected to the wheel frame, and the other end is detachably connected to the connecting seat; When the side plate is connected to the connecting seat, a limiting channel for the cable is formed between the wheel frame, the pulley and the side plate; when the side plate is separated from the connecting seat, the side plate can rotate around the wheel frame to open the limiting channel for the cable to be placed in; The wheel frame is provided with a stopper, and the stopper is used to support the side plate when the side plate is separated from the connecting seat, so that the side plate is limited at a preset position.

10. The traction pulley according to claim 9, characterized in that The side plate and the pulley are connected to the wheel frame through a shaft. The towing pulley also includes a rope guide device for guiding the cable. The rope guide device includes a rope guide frame. The rope guide frame is connected to the shaft through a deep groove ball bearing. A flange is provided at the end of the shaft. The flange is used to limit the movement of the rope guide frame and the deep groove ball bearing in the axial direction of the shaft.

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