A winch

Abstract

The utility model provides a winch belongs to winch technical field. It solved the problem of poor stability of the existing winch's pivot and sleeve when relatively rotating. The winch, including support, tape reel shaft, pivot and sleeve, tape reel shaft rotatory connection is in the support, tape reel shaft, pivot and sleeve all coaxial arrangement, the pivot axial fixed in the sleeve, be equipped with a plurality of around the sleeve circumferential arrangement's bird stopping piece between this pivot outer periphery and sleeve, the inner end of pivot is equipped with the turntable that can place bird stopping piece, the winch still includes the wear -resistant sleeve, the wear -resistant sleeve is a cylindrical member and its outer end projects along the radial and forms the annular flanging, the annular flanging press in the turntable on the pivot, the inner end of pivot is inserted in the inner end of wear -resistant sleeve and pivot and wear -resistant sleeve circumferential location, the inboard of sleeve inner end is fixed with the connecting ring that has inner ring and outer ring. The connecting ring of the winch can connect tape reel shaft stably with sleeve, further improve the stability of winch use.

Description

Technical Field

[0001] This utility model belongs to the field of winch technology and relates to a winch. Background Technology

[0002] When transporting goods, large trucks usually need to securely fasten the goods to the truck bed to prevent them from falling off or colliding with each other during the truck's journey, thus preventing loss and damage. Therefore, winches are usually required.

[0003] Existing winch structures, such as the winch connector disclosed in Chinese patent application [Authorization Announcement No.: CN222348574U], include a rotating shaft and a coaxially arranged sleeve. The rotating shaft is axially fixed inside the sleeve. Several bird-blocking components are arranged circumferentially around the sleeve between the outer periphery of the rotating shaft and the sleeve. Two retaining springs and two annular anti-friction pads are sleeved around the outer periphery of the rotating shaft. The two retaining springs and the two anti-friction pads are arranged at intervals along the axial direction of the rotating shaft. The inner edge of the sleeve has two circumferentially arranged positioning grooves. The retaining springs are respectively positioned and embedded in the positioning grooves. The two anti-friction pads are located between the two retaining springs. The bird-blocking components are limited and arranged between the two anti-friction pads.

[0004] The above structure uses caps fixed at both ends and a retaining spring and friction-reducing pad to achieve axial positioning of the rotating shaft. This means that when the rotating shaft rotates relative to the sleeve, it relies solely on the rotational force of the limiting block, without any other force contacting the sleeve, thus reducing the support effect and rotational stability of the rotating shaft. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a winch. The technical problem to be solved by this utility model is: how to solve the problem of poor stability of the shaft and sleeve of the existing winch when they rotate relative to each other.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A winch includes a bracket, a winding shaft, a rotating shaft, and a sleeve. The winding shaft is rotatably connected to the bracket. The winding shaft, rotating shaft, and sleeve are all coaxially arranged. The rotating shaft is axially fixed inside the sleeve. A plurality of bird-blocking components are arranged circumferentially around the sleeve between the outer circumference of the rotating shaft and the sleeve. The winch is characterized in that a turntable for placing the bird-blocking components is sleeved on the inner end of the rotating shaft. The winch also includes a friction-reducing sleeve, which is a cylindrical component with its outer end protruding radially to form an annular flange. The annular flange presses the turntable onto the rotating shaft. The inner end of the rotating shaft is inserted into the inner end of the friction-reducing sleeve, and the rotating shaft and the friction-reducing sleeve are circumferentially limited. A connecting ring with an inner ring and an outer ring is fixedly connected to the inner side of the inner end of the sleeve. The end of the winding shaft is embedded between the inner ring and the outer ring and fixedly connected to the connecting ring. The friction-reducing sleeve is inserted into the inner ring of the connecting ring, and the friction-reducing sleeve and the connecting ring can rotate relative to each other.

[0008] A turntable is fitted onto the rotating shaft. The annular flange of the anti-friction sleeve presses the turntable onto the rotating shaft. A bird deflector is placed on the turntable between the rotating shaft and the sleeve. A connecting ring is fixedly connected to the inner end of the sleeve. The end of the winding shaft is embedded between the inner and outer rings of the connecting ring and fixedly connected to the connecting ring, thus achieving a fixed connection between the sleeve and the winding shaft. The winding shaft is rotatably connected to the bracket, and the inner end of the rotating shaft is inserted into the inner end of the anti-friction sleeve. When the rotating shaft rotates circumferentially, it drives the anti-friction sleeve to rotate circumferentially synchronously. The anti-friction sleeve is inserted into the inner ring of the connecting ring. When the rotating shaft and the sleeve rotate relative to each other, the anti-friction sleeve rotates circumferentially along the inner ring of the connecting ring. Therefore, when the rotating shaft rotates relative to the sleeve, it can rely on the cooperation of the anti-friction sleeve and the inner ring of the connecting ring to achieve support, increasing the support area when the rotating shaft rotates, thereby improving the stability of rotation. Furthermore, the inner and outer rings of the connecting ring increase the connection area with the winding shaft. The connecting ring can stably connect the winding shaft to the sleeve, further improving the stability of the winch.

[0009] In the winch described above, multiple spaced and arc-shaped mounting grooves are formed between the inner and outer rings, and the end of the winding shaft has an arc-shaped mounting plate that is embedded in the corresponding mounting groove. The mounting plate and the connecting ring are welded together.

[0010] The mounting slot allows for pre-positioning of the winding shaft. After positioning and insertion, the mounting ring is welded to the mounting plate, achieving a stable connection between the two and improving the stability of the winch operation.

[0011] In the winch described above, an installation notch is formed between two adjacent mounting plates, and the connection between the inner and outer rings is embedded in the corresponding installation notch.

[0012] The installation notch design further increases the contact area between the tape reel and the mounting plate, thereby increasing the welding area, improving the stability of the connection between the tape reel and the connecting ring, and also enabling multiple circumferential limits, making welding more convenient.

[0013] In the aforementioned winch, the inner end of the sleeve has a limiting step for placing the outer ring of the connecting ring, and the sleeve is welded to the outer ring of the connecting ring.

[0014] This structure increases the connection area between the sleeve and the connecting ring, thereby ensuring stable welding and improving the connection stability between the sleeve and the winding shaft.

[0015] In the winch described above, there are multiple turntables, which are sequentially mounted on the rotating shaft along the axial direction. The annular flange is in contact with one of the turntables, and there is a gap between the inner ring and the annular flange.

[0016] Since the connecting ring and the anti-friction sleeve will rotate relative to each other, only the circumferential limiting force is needed. Therefore, a gap is set so that the resistance when the rotating shaft drives the anti-friction sleeve to rotate circumferentially relative to the connecting ring is small, and it can also play a good supporting role.

[0017] In the aforementioned winch, the inner edge of the outer end of the sleeve has a ring-shaped limiting step two, and the outer wall of the rotating shaft has a radially protruding positioning flange. The outer end of the sleeve is bent radially inward and presses the positioning flange into the limiting step two.

[0018] During installation, the inner end of the sleeve can be welded to the connecting ring first, and then the shock-absorbing pad, turntable, bird guard and shaft can be installed. After assembly, the outer end of the sleeve is squeezed and bent to limit the positioning stop of the shaft axially inside the sleeve, thereby achieving axial limitation of the shaft and improving the convenience of installation.

[0019] In the winch described above, a retaining ring is also fitted onto the rotating shaft. The retaining ring is located at the outer end of the positioning edge and abuts against the outer wall of the bent sleeve.

[0020] The retaining ring provides a good seal and dustproof effect.

[0021] Compared with the prior art, the present invention has the following advantages: the inner end of the rotating shaft is inserted into the inner end of the anti-friction sleeve. When the rotating shaft rotates circumferentially, it drives the anti-friction sleeve to rotate synchronously circumferentially. The anti-friction sleeve is inserted into the inner ring of the connecting ring. When the rotating shaft and the sleeve rotate relative to each other, the anti-friction sleeve rotates circumferentially along the inner ring of the connecting ring. Therefore, when the rotating shaft rotates relative to the sleeve, it can rely on the cooperation of the anti-friction sleeve and the inner ring of the connecting ring to achieve support, thereby increasing the support area when the rotating shaft rotates and thus improving the stability of rotation. Furthermore, through the setting of the inner and outer rings of the connecting ring, the connection area with the winding shaft is increased. The connecting ring can stably connect the winding shaft to the sleeve, further improving the stability of the winch. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the winch.

[0023] Figure 2 This is a front view of the winch.

[0024] Figure 3 yes Figure 2 A partial sectional view along the center AA.

[0025] Figure 4 yes Figure 2 A sectional view along the middle BB.

[0026] Figure 5 This is an exploded view of the winding shaft and connecting ring in this winch.

[0027] Figure 6This is a schematic diagram of the structure of the wear-reducing sleeve and the rotating shaft after assembly in this winch.

[0028] In the diagram, 1. Reel shaft; 11. Mounting plate; 11a. Mounting notch; 2. Rotary shaft; 21. Positioning stop; 3. Sleeve; 31. Limiting step one; 32. Limiting step two; 4. Bird guard; 5. Turntable; 6. Friction reducing sleeve; 61. Annular flange; 7. Connecting ring; 71. Inner ring; 72. Outer ring; 73. Mounting groove; 8. Spacing; 9. Retaining ring; 10. Bracket. Detailed Implementation

[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0030] like Figure 1 and Figure 4 As shown, this winch includes a winding support 10, a winding shaft 1, a rotating shaft 2, and a sleeve 3. The winding shaft 1 is rotatably connected to the support 10. The winding shaft 1, the rotating shaft 2, and the sleeve 3 are all coaxially arranged. The rotating shaft 2 is axially fixed inside the sleeve 3. Several bird-blocking parts 4 are arranged around the sleeve 3 between the outer circumference of the rotating shaft 2 and the sleeve 3.

[0031] Specifically, such as Figure 1-3 As shown, the inner end of the rotating shaft 2 is fitted with a turntable 5 for placing the bird deflector 4 along the axial direction. The winch also includes a friction-reducing sleeve 6, which is a cylindrical component with its outer end protruding radially to form an annular flange 61. The annular flange 61 presses the turntable 5 onto the rotating shaft 2. The inner end of the rotating shaft 2 is inserted into the friction-reducing sleeve 6, and the rotating shaft 2 and the friction-reducing sleeve 6 are circumferentially limited. The inner side of the inner end of the sleeve 3 is fixedly connected to a connecting ring 7 with an inner ring 71 and an outer ring 72. The end of the winding shaft 1 is embedded between the inner ring 71 and the outer ring 72 and fixedly connected to the connecting ring 7. The friction-reducing sleeve 6 is inserted into the inner ring 71 of the connecting ring 7, and the friction-reducing sleeve 6 and the connecting ring 7 can rotate relative to each other.

[0032] A turntable 5 is fitted onto the rotating shaft 2. The annular flange 61 of the friction-reducing sleeve 6 presses the turntable 5 onto the rotating shaft 2. A bird-stopping piece 4, located between the rotating shaft 2 and the sleeve 3, is placed on the turntable 5. A connecting ring 7 is fixedly connected to the inner end of the sleeve 3. The end of the winding shaft 1 is embedded between the inner ring 71 and the outer ring 72 of the connecting ring 7 and is fixedly connected to the connecting ring 7, thus achieving the fixed connection between the sleeve 3 and the winding shaft 1. The winding shaft 1 is rotatably connected to the bracket 10, and the inner end of the rotating shaft 2 is inserted into the inner end of the friction-reducing sleeve 6. When the rotating shaft 2 rotates circumferentially, it drives the friction-reducing sleeve 6 to rotate circumferentially synchronously. The anti-friction sleeve 6 is inserted into the inner ring 71 of the connecting ring 7. When the rotating shaft 2 and the sleeve 3 rotate relative to each other, the anti-friction sleeve 6 rotates circumferentially along the inner ring 71 of the connecting ring 7. Therefore, when the rotating shaft 2 rotates relative to the sleeve 3, the anti-friction sleeve 6 and the inner ring 71 of the connecting ring 7 can be used to achieve support, increase the support area when the rotating shaft 2 rotates, and thus improve the stability of rotation. Furthermore, through the setting of the inner ring 71 and the outer ring 72 of the connecting ring 7, the connection area with the winding shaft 1 is increased. The connecting ring 7 can stably connect the winding shaft 1 to the sleeve 3, further improving the stability of the winch.

[0033] like Figure 3 and Figure 6 As shown, the inner hole of the wear-reducing sleeve 6 is a non-circular hole, and the rotating shaft 1 is embedded in the inner hole of the wear-reducing sleeve 6 and fits against the hole wall.

[0034] like Figure 3 and Figure 5 As shown, multiple arc-shaped mounting grooves 73 are formed between the inner ring 71 and the outer ring 72 with intervals 8. The end of the tape reel 1 has an arc-shaped mounting plate 11 that is embedded in the corresponding mounting groove 73. The mounting plate 11 is welded to the connecting ring 7. An mounting notch 11a is formed between two adjacent mounting plates 11. The connection between the inner ring 71 and the outer ring 72 is embedded in the corresponding mounting notch 11a. The inner end of the sleeve 3 has a limiting step 31 for placing the outer ring 72 of the connecting ring 7. The sleeve 3 is welded to the outer ring 72 of the connecting ring 7. Multiple turntables 5 are provided. Multiple turntables 5 are sequentially sleeved on the rotating shaft 2 along the axial direction. The annular flange 61 is in contact with one of the turntables 5. There is an interval 8 between the inner ring 71 and the annular flange 61.

[0035] like Figure 3 As shown, the inner edge of the outer end of the sleeve 3 has an annular limiting step 32, and the outer wall of the rotating shaft 2 has a radially protruding positioning flange 21. The outer end of the sleeve 3 is bent inward in the radial direction and the positioning flange 21 is pressed into the limiting step 32. A retaining ring 9 is also sleeved on the rotating shaft 2. The retaining ring 9 is located at the outer end of the positioning flange 21 and abuts against the outer wall of the bent sleeve 3.

[0036] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A winch, comprising a support (10), a winding shaft (1), a rotating shaft (2), and a sleeve (3), wherein the winding shaft (1) is rotatably connected to the support (10), the winding shaft (1), the rotating shaft (2), and the sleeve (3) are all coaxially arranged, the rotating shaft (2) is axially fixed inside the sleeve (3), and a plurality of bird-blocking elements (4) arranged circumferentially around the sleeve (3) are provided between the outer periphery of the rotating shaft (2) and the sleeve (3), characterized in that, The inner end of the rotating shaft (2) is fitted with a turntable (5) for placing a bird deflector (4). The winch also includes a friction-reducing sleeve (6). The friction-reducing sleeve (6) is a cylindrical component with its outer end protruding radially to form an annular flange (61). The annular flange (61) presses the turntable (5) onto the rotating shaft (2). The inner end of the rotating shaft (2) is inserted into the inner end of the friction-reducing sleeve (6), and the rotating shaft (2) and the friction-reducing sleeve (6) are circumferentially limited. The inner side of the inner end of the sleeve (3) is fixedly connected to a connecting ring (7) with an inner ring (71) and an outer ring (72). The end of the winding shaft (1) is embedded between the inner ring (71) and the outer ring (72) and fixedly connected to the connecting ring (7). The friction-reducing sleeve (6) is inserted into the inner ring (71) of the connecting ring (7), and the friction-reducing sleeve (6) and the connecting ring (7) can rotate relative to each other.

2. The winch according to claim 1, characterized in that, Multiple spaced (8) and arc-shaped mounting grooves (73) are formed between the inner ring (71) and the outer ring (72). The end of the tape reel (1) has an arc-shaped mounting plate (11) embedded in the corresponding mounting groove (73). The mounting plate (11) and the connecting ring (7) are welded together.

3. The winch according to claim 2, characterized in that, An installation notch (11a) is formed between two adjacent mounting plates (11), and the connection between the inner ring (71) and the outer ring (72) is embedded in the corresponding installation notch (11a).

4. The winch according to claim 1, 2, or 3, characterized in that, The inner end of the sleeve (3) has a limiting step (31) for placing the outer ring (72) of the connecting ring (7), and the sleeve (3) is welded to the outer ring (72) of the connecting ring (7).

5. The winch according to claim 1, 2, or 3, characterized in that, The turntable (5) is provided in multiple ways, and the multiple turntables (5) are sequentially sleeved on the rotating shaft (2) along the axial direction. The annular flange (61) is in contact with one of the turntables (5), and there is a gap (8) between the inner ring (71) and the annular flange (61).

6. The winch according to claim 1, 2, or 3, characterized in that, The inner edge of the outer end of the sleeve (3) has a ring-shaped limiting step two (32), and the outer wall of the rotating shaft (2) has a radially protruding positioning flange (21). The outer end of the sleeve (3) is bent inward in the radial direction and the positioning flange (21) is pressed into the limiting step two (32).

7. The winch according to claim 6, characterized in that, A retaining ring (9) is also fitted onto the rotating shaft (2). The retaining ring (9) is located at the outer end of the positioning edge (21) and abuts against the outer wall of the bent sleeve (3).

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