Rotary lifting appliance for machining output shaft group of speed reducer

Abstract

The utility model relates to a rotary lifting appliance for machining an output shaft group of a speed reducer, which comprises a pull rod, a limiting sleeve and a guide sleeve, and two blades which are arranged in a central symmetry manner are mounted at the bottom of the pull rod; the limiting sleeve sleeves the pull rod and can limit the pull rod to rotate relative to the limiting sleeve, a limiting seat is installed at the bottom of the limiting sleeve, windows corresponding to the blades are formed in the side face of the limiting seat, and the pull rod can rotate to drive the blades to stretch out or retract from the corresponding windows; the guide sleeve sleeves the pull rod and is located above the limiting sleeve. The guide sleeve can drive the pull rod to rotate relative to the limiting sleeve. The hoisting device is simple in overall structure and convenient and simple to operate, and the outer surface of the output shaft group cannot be abraded in the hoisting process, so that the finished product quality of the output shaft group is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of processing a reducer output shaft group, and in particular relates to a rotary hanger for processing a reducer output shaft group. Background Art

[0002] The output shaft assembly of the reducer needs to go through multiple processing steps during processing. When the output shaft assembly is moved between each step, it is laborious and inefficient to carry it manually. In order to solve this problem, a lifting machine is used in conjunction with a sling to move the output shaft assembly during the current processing.

[0003] However, the existing lifting tools are claw-type lifting tools, such as three-claw lifting tools, which are not only complex in structure, but also have claw arms that clamp on the outer wall of the output shaft assembly during grabbing, and then use a lifting machine to lift it and transfer it to the next processing step. This lifting method is very likely to scratch the outer surface of the output shaft assembly, causing surface wear, which directly affects the quality of the finished product of the output shaft assembly. Utility Model Content

[0004] The utility model aims to provide a rotary hanger for processing a speed reducer output shaft group, so as to solve the problem that the output shaft group is easily worn during the hoisting process.

[0005] The utility model is a rotary hanger for processing a reducer output shaft group as follows:

[0006] A rotary hanger for processing a reducer output shaft group, comprising:

[0007] A pull rod, at the bottom of which are mounted two blades arranged symmetrically with respect to the center;

[0008] A limit sleeve, which is sleeved on the pull rod and can limit the pull rod from rotating relative to it. A limit seat is installed at the bottom of the limit sleeve. A window corresponding to the blade is arranged on the side of the limit seat. The rotation of the pull rod can drive the blade to extend or retract from the corresponding window.

[0009] A guide sleeve is sleeved on the pull rod and is located above the limiting sleeve. The guide sleeve can drive the pull rod to rotate relative to the limiting sleeve.

[0010] Furthermore, a lifting ring is installed on the upper end of the pull rod.

[0011] Furthermore, a latch which radially penetrates the pull rod is installed on the lower plate of the lifting ring;

[0012] A locking nut assembled on the pull rod is arranged below the lifting ring.

[0013] Furthermore, a keyway is provided on the side of the pull rod in its axial direction, the keyway is located on the inner side of the limiting sleeve and the guide sleeve, and a flat key connected to the guide sleeve is installed in the keyway.

[0014] Furthermore, the guide sleeve is connected to the flat key via a screw.

[0015] Furthermore, the length of the keyway located on the inner side of the guide sleeve is not less than the length of the flat key.

[0016] Furthermore, an inner cavity is arranged above the interior of the guide sleeve, and a spring sleeved on the pull rod is arranged in the inner cavity.

[0017] Furthermore, a limiting flange is provided on the limiting sleeve.

[0018] Furthermore, a receiving groove is arranged above the limiting seat, the blade is located in the receiving groove, and the window is opened on the side wall of the receiving groove.

[0019] Furthermore, the opposite sides of the two blades are planes, and the opposite sides are provided with arc-shaped corners that match the inner wall of the accommodating groove, and the outer side surfaces of the blades are arc surfaces that match the outer wall of the limiting seat.

[0020] After adopting the above technical solution, the utility model has the following beneficial effects:

[0021] The utility model has a simple overall structure. When hoisting, the blades are rotated out and placed under the output shaft group, and then the output shaft group is hoisted with the help of a lifting machine. The operation is convenient and simple, and no wear is caused to the outer surface of the output shaft group, thereby ensuring the finished product quality of the output shaft group. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a structural diagram of a rotary hanger for processing a reducer output shaft assembly according to a preferred embodiment of the utility model;

[0024] Figure 2 It is a structural diagram of a rotary hanger for processing a reducer output shaft assembly according to a preferred embodiment of the utility model;

[0025] Figure 3 It is an axial cross-sectional view of a rotary hanger for processing a reducer output shaft assembly according to a preferred embodiment of the utility model;

[0026] Figure 4 yes Figure 3 A magnified view of part A;

[0027] Figure 5It is a structural diagram of the limit seat and blades (when the blades are rotated out) of the rotary hanger for processing the output shaft group of the reducer in the preferred embodiment of the utility model;

[0028] Figure 6 It is a schematic diagram of the limit seat and blades (when the blades are retracted) of the rotary hanger for processing the output shaft group of the reducer according to the preferred embodiment of the utility model;

[0029] Figure 7 This is a diagram of the hoisting state of the rotary hoist for processing the output shaft group of the reducer according to the preferred embodiment of the utility model;

[0030] In the figure: pull rod 1, limit sleeve 2, guide sleeve 3, blade 4, limit seat 5, window 6, lifting ring 7, outer through hole 8, inner through hole 9, anti-loosening nut 10, keyway 11, flat key 12, upper groove 13, lower groove 14, mounting hole 15, threaded hole 16, inner cavity 17, spring 18, limit flange 19, accommodating groove 20, countersunk threaded hole 21, plane 22, arc corner 23, arc surface 24, pin hole 25, output shaft group 26. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1-7 As shown, a rotating hanger for processing a reducer output shaft group includes a pull rod 1, a limit sleeve 2 and a guide sleeve 3. Two blades 4 arranged in a central symmetrical manner are installed at the bottom of the pull rod 1; the limit sleeve 2 is sleeved on the pull rod 1, which can limit the rotation of the pull rod 1 relative to it, and a limit seat 5 is installed at the bottom of the limit sleeve 2. The side of the limit seat 5 is provided with a window 6 corresponding to the blade 4. The rotation of the pull rod 1 can drive the blade 4 to extend or retract from the corresponding window 6; the guide sleeve 3 is sleeved on the pull rod 1 and is located above the limit sleeve 2. The guide sleeve 3 can drive the pull rod 1 to rotate relative to the limit sleeve 2.

[0034] In order to facilitate connection with a lifting machine, a lifting ring 7 is installed at the upper end of the pull rod 1.

[0035] In this embodiment, the lifting ring 7 is threadedly connected to the pull rod 1 , that is, a screw hole is provided on the lower plate of the lifting ring 7 to cooperate with the screw on the top of the pull rod 1 .

[0036] In order to ensure the stability of the connection between the lifting ring 7 and the pull rod 1, a latch (not shown in the figure) which radially penetrates the pull rod 1 is installed on the lower plate of the lifting ring 7.

[0037] The lower plate is provided with a radial outer through hole 8, and the pull rod 1 is provided with an inner through hole 9 coaxial with the outer through hole 8. The pin passes through the outer through hole 8 and the inner through hole 9, thereby increasing the stability of the connection between the pull rod 1 and the lifting ring 7 and preventing the lifting ring 7 from detaching from the pull rod 1.

[0038] In order to limit the lifting ring 7 and prevent it from moving up and down on the pull rod 1, a locking nut 10 assembled on the pull rod 1 is provided below the lifting ring 7.

[0039] In order to enable the guide sleeve 3 to drive the pull rod 1 to rotate relative to the limit sleeve 2, and the limit sleeve 2 to limit the pull rod 1 from rotating relative to it, a key groove 11 located in its axial direction is provided on the side of the pull rod 1. The key groove 11 is located on the inner side of the limit sleeve 2 and the guide sleeve 3, and a flat key 12 connected to the guide sleeve 3 is installed in the key groove 11.

[0040] An upper groove 13 opposite to the key groove 11 is arranged on the inner wall of the guide sleeve 3 , and a lower groove 14 opposite to the key groove 11 is arranged on the inner wall of the limiting sleeve 2 .

[0041] When the blade 4 is rotated out to lift the output shaft assembly 26, the flat key 12 is located in the keyway 11, the upper groove 13 and the lower groove 14, so that the flat key 12 is used to lock the guide sleeve 3, the pull rod 1 and the limit sleeve 2 together to prevent the pull rod 1 from rotating relative to the limit sleeve 2. The blade 4 cannot be rotated back into the limit seat 5, thereby ensuring stability after lifting and preventing the output shaft assembly 26 from falling, thereby ensuring good safety.

[0042] In order to ensure the connection between the guide sleeve 3 and the flat key 12, the guide sleeve 3 is connected to the flat key 12 by screws.

[0043] Specifically, the guide sleeve 3 is provided with a mounting hole 15 , and the flat key 12 is provided with a threaded hole 16 opposite to the mounting hole 15 . The screw assembled in the mounting hole 15 can be connected in the threaded hole 16 , thereby realizing the connection between the guide sleeve 3 and the flat key 12 .

[0044] In order to separate the flat key 12 from the limiting sleeve 2 and thereby drive the pull rod 1 to rotate relative to the limiting sleeve 2 through the guide sleeve 3 to achieve the screwing of the blade 4, the length of the keyway 11 located on the inner side of the guide sleeve 3 is not less than the length of the flat key 12.

[0045] When separating the rotating hanger from the output shaft assembly 26, lift the guide sleeve 3 upward to drive the flat key 12 to move upward in the key slot 11, so that the flat key 12 is disengaged from the lower slot 14, that is, it is separated from the limiting sleeve 2. The flat key 12 is completely located in the upper slot 13 and the key slot 11 on the inner side of the guide sleeve 3. At this time, rotating the guide sleeve 3 can drive the pull rod 1 to rotate relative to the limiting sleeve 2, so that the blade 4 rotates and retracts into the limiting seat 5, thereby taking the rotating hanger out of the inner hole of the output shaft assembly 26.

[0046] In order to achieve the downward movement and resetting of the guide sleeve 3 and the flat key 12 , an inner cavity 17 is provided on the upper part of the guide sleeve 3 , and a spring 18 sleeved on the pull rod 1 is provided in the inner cavity 17 .

[0047] When the guide sleeve 3 is lifted, the spring 18 will be compressed, and when the blade 4 is rotated and extended, the spring 18 will reset, and its elastic force will push the guide sleeve 3 and the flat key 12 downward, so that the lower part of the flat key 12 extends into the limit sleeve 2, and the blade 4 can be locked during lifting.

[0048] In order to limit the upper part of the output shaft assembly 26 , a limiting flange 19 is provided on the limiting sleeve 2 .

[0049] During lifting, the limiting flange 19 is located above the output shaft assembly 26 , and the blade 4 is located below the output shaft assembly 26 .

[0050] In order to facilitate the placement of the blade 4 , a receiving groove 20 is provided above the limiting seat 5 , the blade 4 is located in the receiving groove 20 , and the window 6 is opened on the side wall of the receiving groove 20 .

[0051] Specifically, a countersunk threaded hole 21 is provided at the bottom of the limiting seat 5 , and the limiting seat 5 is connected to the lower end of the limiting sleeve 2 via a screw installed in the countersunk threaded hole 21 .

[0052] Furthermore, the provision of the countersunk threaded hole 21 can facilitate the placement of the output shaft assembly 26 and prevent the rotating hanger from shaking randomly when the rotating hanger is separated from the output shaft assembly 26 .

[0053] In order to achieve the coordination between the two blades 4 and between the blades 4 and the limit seat 5, the opposite sides of the two blades 4 are planes 22, the opposite sides are provided with arc corners 23 that cooperate with the inner wall of the accommodating groove 20, and the outer side surface of the blade 4 is an arc surface 24 that cooperates with the outer wall of the limit seat 5.

[0054] The blade 4 is provided with a pin hole 25 , and the blade 4 is fixedly connected to the pull rod 1 via a pin installed in the pin hole 25 .

[0055] When lifting the output shaft group 26, the rotating hoist needs to initially screw the blade 4 into the limit seat 5, and then the lower end of the rotating hoist extends into the inner hole of the output shaft group 26. At this time, the pull rod 1 is driven by the guide sleeve 3 to rotate relative to the limit sleeve 2, so that the blade 4 is rotated out. When the flat key 12 rotates to the lower groove 14 of the limit sleeve 2, the elastic force of the spring 18 pushes the guide sleeve 3 and the flat key 12 to move downward, thereby placing the flat key 12 in the upper groove 13, the lower groove 14 and the key groove 11, thereby locking the limit sleeve 2, the guide sleeve 3 and the pull rod 1 to prevent the blade 4 from retracting. At this time, the lifting machine can be used to drive the rotating hoist to lift the output shaft group 26 until it is placed in the next workstation.

[0056] After lowering the output shaft assembly 26, lift up the guide sleeve 3 to separate the flat key 12 from the limit sleeve 2. Rotating the guide sleeve 3 can drive the pull rod 1 to rotate relative to the limit sleeve 2. At this time, the blade 4 is retracted into the limit seat 5 driven by the pull rod 1, and the rotating hanger can be removed from the output shaft assembly 26 to achieve the separation of the two.

[0057] The utility model has a simple overall structure and is easy to use and operate. The output shaft assembly 26 will not be worn during the process of hoisting, thereby ensuring the finished product quality of the output shaft assembly 26.

[0058] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A rotary hanger for processing a reducer output shaft assembly, characterized in that: include A pull rod (1) having two blades (4) arranged symmetrically with respect to the center mounted at its bottom; A limiting sleeve (2) is sleeved on the pull rod (1) and can limit the pull rod (1) from rotating relative to the limiting sleeve (2). A limiting seat (5) is installed at the bottom of the limiting sleeve (2). A window (6) corresponding to the blade (4) is arranged on the side of the limiting seat (5). The rotation of the pull rod (1) can drive the blade (4) to extend or retract from the corresponding window (6). A guide sleeve (3) is sleeved on the pull rod (1) and is located above the limiting sleeve (2); the guide sleeve (3) can drive the pull rod (1) to rotate relative to the limiting sleeve (2).

2. The rotary hanger for processing the output shaft assembly of the reducer according to claim 1, characterized in that: A lifting ring (7) is installed at the upper end of the pull rod (1).

3. The rotary hanger for processing the output shaft assembly of the reducer according to claim 2, characterized in that: A latch which radially penetrates the pull rod (1) is installed on the lower plate of the lifting ring (7); A locking nut (10) mounted on the pull rod (1) is provided below the lifting ring (7).

4. The rotary hanger for processing the output shaft assembly of the reducer according to claim 1, characterized in that: The side surface of the pull rod (1) is provided with a keyway (11) located in its axial direction, and the keyway (11) is located on the inner side of the limiting sleeve (2) and the guide sleeve (3), and a flat key (12) connected to the guide sleeve (3) is installed in the keyway (11).

5. The rotary hanger for processing the output shaft assembly of the reducer according to claim 4, characterized in that: The guide sleeve (3) is connected to the flat key (12) via screws.

6. The rotary hanger for processing the output shaft assembly of the reducer according to claim 4, characterized in that: The length of the keyway (11) located inside the guide sleeve (3) is not less than the length of the flat key (12).

7. The rotary hanger for processing the output shaft assembly of the reducer according to claim 1, characterized in that: An inner cavity (17) is arranged above the interior of the guide sleeve (3), and a spring (18) sleeved on the pull rod (1) is arranged in the inner cavity (17).

8. The rotary hanger for processing the output shaft assembly of the reducer according to claim 1, characterized in that: The limiting sleeve (2) is provided with a limiting flange (19).

9. The rotary hanger for processing the output shaft assembly of the reducer according to claim 1, characterized in that: A receiving groove (20) is provided above the limiting seat (5), the blade (4) is located in the receiving groove (20), and the window (6) is opened on the side wall of the receiving groove (20).

10. The rotary hanger for processing the output shaft assembly of the reducer according to claim 9, characterized in that: The opposite sides of the two blades (4) are planes (22), and the opposite sides are provided with arc-shaped corners (23) that match the inner wall of the accommodating groove (20), and the outer side surfaces of the blades (4) are arc surfaces (24) that match the outer wall of the limiting seat (5).

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