Internal expansion lifting appliance

Abstract

The invention relates to an internal expansion lifting appliance, and belongs to the field of heat treatment production. Comprising a lifting appliance lifting hook (1), a clamping hook groove (2), a clamping hook handle (3), a clamping hook fixing pin (4), a clamping hook (5), a clamping hook warped tail (6), a limiting plate (7), an expansion valve (8), a lifting appliance main shaft (9) and a supporting partition plate (10). The lifting appliance main shaft (9) is of a straight-rod-shaped structure, the lifting appliance lifting hook (1) is arranged at the upper end of a rod body, the clamping hook groove (2) is formed in the upper side wall of the rod body, the clamping hook fixing pin (4) is arranged in the middle of the interior of the clamping hook groove (2), the clamping hook (5) is fixed in the clamping hook groove (2) through the clamping hook fixing pin (4), the clamping hook handle (3) is connected to the upper portion of the clamping hook (5), and the clamping hook warped tail (6) is connected to the lower portion of the clamping hook (5). According to the invention, the charging, discharging, oil control and carrying efficiency of the revolving body type product with the blind hole can be effectively improved; the heat treatment requirements of multi-caliber products can be met; and the labor intensity and the safety risk of workers can be reduced.

Description

Technical Field

[0001] The invention belongs to the field of heat treatment production, and in particular relates to an internal expansion hanger. Background Art

[0002] In the traditional heat treatment production process, the actions of loading, unloading, oil control, and handling of workpieces are all manually performed, that is, workers complete the above actions directly with their bare hands or by clamping with pliers. This method has the disadvantages of high labor intensity for workers, low production efficiency, and high safety risks. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The technical problem to be solved by the present invention is how to provide an internal expansion sling to solve the problem of potential safety hazards in manual operation in the prior art.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention proposes an internal expansion sling, characterized in that it includes: a sling hook 1, a hook groove 2, a hook handle 3, a hook fixing pin 4, a hook 5, a hook tail 6, a limit plate 7, an expansion petal 8, a sling main shaft 9, and a supporting partition 10;

[0007] The main shaft 9 of the sling is set as a straight rod structure, the upper end of the rod body is provided with a sling hook 1, the upper side wall of the rod body is provided with a hook groove 2, the middle position of the hook groove 2 is provided with a hook fixing pin 4, the hook 5 is fixed in the hook groove 2 by the hook fixing pin 4, the hook 5 is connected to the hook handle 3 above, and the hook 5 is connected to the hook tail 6 below;

[0008] The expansion petal 8 has a circular hole at the top and is sleeved on the main shaft 9 of the sling. A limit plate 7 is provided above the expansion petal 8 and a support partition 10 is provided below the expansion petal 8. The limit plate 7 and the support partition 10 are arranged in parallel and are both sleeved and fixed on the main shaft 9 of the sling.

[0009] Move the expansion petal 8 to the hook tail 6, pull the hook handle 3 to make the hook tail 6 sink into the hook groove 2, then move the expansion petal 8 to pass through the hook tail 6, press the hook handle 3 to make the hook tail 6 pop out of the hook groove 2, and prevent the expansion petal 8 from sliding down, then extend the lower end of the hanger main shaft 9 into the product inner bore, press the expansion petal 8 in the direction of the hanger main shaft 9, stop pressing after it passes through the product opening, and the expansion petal 8 opens under the action of metal elasticity and is stuck at the product mouth;

[0010] Lift the expansion hook 1, and the bottom of the expansion petal 8 contacts the supporting partition 10. With the support of the supporting partition 10, the outer wall of the expansion petal 8 contacts the inner wall of the workpiece mouth tightly, thereby lifting the workpiece.

[0011] The hook 5 is crescent-shaped and fixed in the middle of the hook groove.

[0012] Among them, a protrusion is provided outwardly at the bottom of the hook tail 6.

[0013] Wherein, the hook handle 3 is configured as a straight section as a whole.

[0014] The limit plate 7 is fixed to the steel plate at the upper end of the main shaft 9 of the sling, and is used to limit the upward movement of the expansion petal 8 and prevent the expansion petal 8 from falling off from the upper end;

[0015] The supporting partition 10 is configured as a circular steel plate with a central hole, which is used to support the expansion flap and is clamped at the mouth of the workpiece.

[0016] Wherein, two sides of the bottom of the expansion petal 8 are arranged as elastic steel sheets.

[0017] Among them, the lower end of the main shaft 8 of the hanger is provided with an external thread structure, and the lower end of the main shaft 8 of the hanger is matched with the external thread by setting a nut 11 to fix the supporting partition 10.

[0018] When taking it out from the inner chamber of the product, the main shaft 9 of the sling is pushed downward along the inner chamber direction of the product to make the supporting partition 10 disengage from the expansion flap 8. When the expansion flap 8 moves to the upper end of the hook tail 6, the hook handle 3 is pressed to make the hook tail 6 pop out of the hook groove 2, preventing the expansion flap 8 from moving downward and lifting the expansion device hook 1.

[0019] (III) Beneficial effects

[0020] The present invention proposes an internal expansion hanger, which is simple to manufacture, has a clear working principle and is safe to operate. It can effectively improve the efficiency of loading, unloading, oil control and handling of rotating body products with blind holes; it can meet the heat treatment requirements of multi-caliber products; and it can reduce the labor intensity and safety risks of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the main shaft structure of the internal expansion hanger;

[0023] Figure 3 This is an enlarged view of the expansion petal of the internal expansion spreader;

[0024] Figure 4 This is a schematic diagram of the expansion of the spreader;

[0025] Figure 5 Schematic diagram of the supporting partition. DETAILED DESCRIPTION

[0026] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0027] This embodiment provides an internal expansion sling, comprising: a sling hook 1, a hook groove 2, a hook handle 3, a hook fixing pin 4, a hook 5, a hook tail 6, a limit plate 7, an expansion petal 8, a sling main shaft 9, and a supporting partition 10;

[0028] The main shaft 9 of the sling is set as a straight rod structure, the upper end of the rod body is provided with a sling hook 1, the upper side wall of the rod body is provided with a hook groove 2, the middle position of the hook groove 2 is provided with a hook fixing pin 4, the hook 5 is fixed in the hook groove 2 by the hook fixing pin 4, the hook 5 is connected to the hook handle 3 above, and the hook 5 is connected to the hook tail 6 below;

[0029] The expansion petal 8 has a circular hole at the top and is sleeved on the main shaft 9 of the sling. A limit plate 7 is provided above the expansion petal 8 and a support partition 10 is provided below the expansion petal 8. The limit plate 7 and the support partition 10 are arranged in parallel and are both sleeved and fixed on the main shaft 9 of the sling.

[0030] The hook 5 is crescent-shaped and fixed in the middle of the hook groove.

[0031] Among them, the bottom of the hook tail 6 is provided with a protrusion outward, and the whole is in the shape of a quarter note. shape.

[0032] Wherein, the hook handle 3 is configured as a straight section as a whole.

[0033] The limit plate 7 is fixed to the steel plate at the upper end of the main shaft 9 of the sling, and is used to limit the upward movement of the expansion petal 8 and prevent the expansion petal 8 from falling off from the upper end;

[0034] The supporting partition 10 is configured as a circular steel plate with a central hole, which is used to support the expansion flap and is clamped at the mouth of the workpiece.

[0035] Wherein, two sides of the bottom of the expansion petal 8 are arranged as elastic steel sheets.

[0036] Among them, the lower end of the main shaft 8 of the hanger is provided with an external thread structure, and the lower end of the main shaft 8 of the hanger is matched with the external thread by setting a nut 11 to fix the supporting partition 10.

[0037] The present invention is required for loading, unloading, oil control, and transportation of rotating body products with blind holes during heat treatment production. First, pass the lower end of the sling main shaft 9 through the circular hole on the expansion petal 8 (the diameter of the circular hole on the expansion petal 8 is larger than the outer diameter of the boss at the lower end of the sling main shaft 9); then pass it through the center hole of the support partition 10 (the diameter of the center hole of the support partition 10 is smaller than the outer diameter of the boss at the lower end of the sling main shaft 9); finally, fit the nut 11 with the thread at the lower end of the sling main shaft 9 to fix the support partition; after completing the above steps, the combination of the present invention is completed.

[0038] The present invention is loaded into the inner chamber of the product: the expansion petal 8 is moved to the hook tail 6, the hook handle 3 is pulled to make the hook tail 6 sink into the hook groove 2, and then the expansion petal 8 is moved to pass through the hook tail 6; then the hook handle 3 is pressed to make the hook tail 6 pop out of the hook groove 2 to prevent the expansion petal 8 from sliding down; then the lower end of the hanger main shaft 9 is extended into the inner chamber of the product, and then the expansion petal 8 is pressed in the direction of the hanger main shaft 9 to stop pressing after it passes through the product opening, and the expansion petal 8 opens under the action of metal elasticity and is stuck in the product mouth; finally, the expansion hook 1 is lifted by a crane, and the expansion petal 8 contacts the supporting partition 10. Under the support of the supporting partition 10, the outer wall of the expansion petal 8 is in close contact with the inner wall of the workpiece mouth, thereby lifting the workpiece, and completing the actions of loading, unloading, pouring oil, and carrying.

[0039] The present invention is taken out from the inner chamber of the product: the main shaft 9 of the sling is pushed downward along the inner chamber direction of the product to make the supporting partition 10 disengage from the expansion flap 8; when the expansion flap 8 moves to the upper end of the hook tail 6, the hook handle 3 is pressed to make the hook tail 6 pop out of the hook groove 2 to prevent the expansion flap 8 from moving downward; finally, the expansion device hook 1 is lifted by a crane to take out the present invention.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An internal expansion sling, characterized in that: include: A sling hook (1), a hook groove (2), a hook handle (3), a hook fixing pin (4), a hook (5), a hook tail (6), a limit plate (7), an expansion flap (8), a sling main shaft (9), and a supporting partition (10); The main shaft (9) of the sling is arranged as a straight rod structure, the upper end of the rod body is provided with a sling hook (1), the upper side wall of the rod body is provided with a hook groove (2), a hook fixing pin (4) is arranged at the middle position in the hook groove (2), the hook (5) is fixed in the hook groove (2) by the hook fixing pin (4), the hook (5) is connected to the hook handle (3) at the top, and the hook (5) is connected to the hook tail (6) at the bottom; The expansion flap (8) has a circular hole at the top and is sleeved on the main shaft (9) of the sling. A limit plate (7) is provided above the expansion flap (8), and a support partition (10) is provided below the expansion flap (8). The limit plate (7) and the support partition (10) are arranged in parallel and are both sleeved and fixed on the main shaft (9) of the sling. The expansion flap (8) is moved to the hook tail (6), the hook handle (3) is pulled to make the hook tail (6) sink into the hook groove (2), and then the expansion flap (8) is moved to pass through the hook tail (6), and the hook handle (3) is pressed to make the hook tail (6) pop out of the hook groove (2) to prevent the expansion flap (8) from sliding down, and then the lower end of the hanger main shaft (9) is extended into the inner bore of the product, and the expansion flap (8) is pressed in the direction of the hanger main shaft (9) to stop pressing after it passes through the product opening, and the expansion flap (8) opens under the action of metal elasticity and is stuck at the product mouth; When the expansion hook (1) is lifted, the bottom of the expansion flap (8) contacts the supporting partition (10), and under the support of the supporting partition (10), the outer wall of the expansion flap (8) contacts closely with the inner wall of the workpiece mouth, thereby lifting the workpiece.

2. The internal expansion sling according to claim 1, characterized in that: The hook (5) is crescent-shaped and is fixed in the middle of the hook groove.

3. The internal expansion sling according to claim 1, characterized in that: The bottom of the hook tail (6) is provided with a protrusion outwardly.

4. The internal expansion sling according to claim 1, characterized in that: The hook handle (3) is configured as a straight section as a whole.

5. The internal expansion sling according to claim 1, characterized in that: The limit plate (7) is a steel plate fixed to the upper end of the main shaft (9) of the sling, and is used to limit the upward movement of the expansion petal (8) and prevent the expansion petal (8) from falling off from the upper end; The supporting partition (10) is configured as a circular steel plate with a central hole, and is used to support the expansion flap and is clamped at the mouth of the workpiece.

6. The internal expansion sling according to claim 1, characterized in that: Both sides of the bottom of the expansion flap (8) are provided with elastic steel sheets.

7. The internal expansion sling according to claim 1, characterized in that: The lower end of the main shaft (8) of the sling is provided with an external thread structure, and the lower end of the main shaft (8) of the sling cooperates with the external thread by setting a nut (11) to fix the supporting partition (10).

8. The internal expansion sling according to claim 1, characterized in that: When taking it out from the inner chamber of the product, the main shaft (9) of the lifting device is pushed downward along the inner chamber direction of the product, so that the supporting partition (10) is out of contact with the expansion flap (8). When the expansion flap (8) moves to the upper end of the hook tail (6), the hook handle (3) is pressed to make the hook tail (6) pop out of the hook groove (2), thereby preventing the expansion flap (8) from moving downward and lifting the expansion device hook (1).

Images