High-strength chain wheel box

Abstract

The utility model discloses a high-strength chain wheel box which comprises a chain wheel box body, a groove is formed in the top of the chain wheel box body, a hoisting part is arranged in the groove, a hoisting hole is formed in the hoisting part, a diagonal brace is arranged on one side of the hoisting part, and the bottom of the diagonal brace is fixed to the chain wheel box body. The side walls of the diagonal braces are fixed to the hoisting part, the hoisting part and the chain wheel box body are further connected and reinforced through the design of the diagonal braces, the structural strength of the connecting position of the hoisting part and the chain wheel box body is effectively improved, the situation that the hoisting part is prone to breakage due to independent stress is avoided, and the use safety is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric hoist field especially is related to a high -strength chain wheel box. BACKGROUND

[0002] Electric hoist is a kind of equipment for hoisting and moving heavy objects. It can be installed on monorail, double track or cantilever crane and other various hoisting devices, through motor drive system, realize the vertical lifting of heavy object and in certain range horizontal movement. For example, in factory workshop, it can hoist heavy machine parts from one work area to another area, or raw materials are transported from warehouse to production line, greatly improve the efficiency of material handling.

[0003] Chain wheel box belongs to the important component part of electric hoist, it is located in the middle part of electric hoist and inside for installing chain wheel, and when the hoisting part of electric hoist is usually directly set on the top of chain wheel box, some electric hoists of the prior art reduce the overall weight, and chain wheel box adopts aluminum material, but there is a safety hazard of hoisting in the actual use that the structure strength of hoisting part is insufficient, and further improvement is needed. SUMMARY

[0004] In order to further improve the structural strength and use safety, the application provides a high-strength chain wheel box.

[0005] The application provides a high-strength chain wheel box, which adopts the following technical scheme:

[0006] A high-strength chain wheel box, comprising a chain wheel box body, the chain wheel box body top has a groove, the groove is provided with a hoisting part, the hoisting part is provided with a hoisting hole, one side of the hoisting part is provided with a diagonal tension bar, the bottom of the diagonal tension bar is fixed with the chain wheel box body, and the side wall of the diagonal tension bar is fixed with the hoisting part.

[0007] Optionally, the hoisting part is arranged in parallel in the groove, the hoisting holes are symmetrically arranged on the hoisting part, and the diagonal tension bars are located between adjacent hoisting holes.

[0008] Optionally, the top of the hoisting part is provided with an arc-shaped protruding portion, and the thickness of the protruding portion gradually decreases from the middle to the two ends.

[0009] Optionally, the chain wheel box body is provided with a mounting cavity on both sides, the inner wall of the mounting cavity is provided with a reinforcing rib, and the reinforcing rib is provided with a sub-rib corresponding to the position of the hoisting part.

[0010] Optionally, the reinforcing rib further comprises a ring rib, and the ring rib is annular and connected with each sub-rib.

[0011] Optionally, one side of the sub-rib is provided with an inclined angle extension portion, and the inclined angle extension portion is fixed with the side wall of the mounting cavity.

[0012] Optionally, one side of the hoisting part has an inner recessed groove, and a reinforcing rib is formed between adjacent grooves.

[0013] Optionally, the reinforcing ribs are distributed circumferentially around the hoisting hole, and the length direction of the reinforcing ribs extends along the radial direction of the hoisting hole.

[0014] In summary, the present application includes at least one of the following beneficial technical effects:

[0015] 1. The inclined reinforcing rib is designed to further connect and reinforce the hoisting part and the sprocket case body, effectively improving the structural strength of the connection between the hoisting part and the sprocket case body, avoiding the easy breakage of the hoisting part under single stress, and effectively improving the safety in use.

[0016] 2. The distribution of the reinforcing ribs can effectively strengthen the structure of the sprocket case body, and the positions of the reinforcing ribs correspond to the positions of the hoisting part, achieving further strengthening of the overall structure.

[0017] 3. The design of the ring rib can connect each reinforcing rib into a whole, so that the overall distribution of the reinforcing ribs has a better effect on the strengthening of the sprocket case body structure.

[0018] 4. The design of the groove forms a reinforcing rib on the hoisting part, effectively improving the structural strength of the hoisting part itself. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural diagram of the first perspective of an embodiment of the present application.

[0020] Figure 2 is a structural diagram of the second perspective of an embodiment of the present application.

[0021] Figure 3 is a structural diagram of the third perspective of an embodiment of the present application.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 1. Sprocket case body; 2. Groove; 3. Hoisting part; 4. Hoisting hole; 5. Inclined reinforcing rib; 6. Protruding part; 7. Mounting cavity; 8. Reinforcing rib; 9. Ring rib; 10. Inclined angle extension; 11. Groove; 12. Reinforcing rib. DETAILED DESCRIPTION

[0024] The following will be described in detail in combination with the accompanying drawings. Figures 1-3 The present application will be further described in detail.

[0025] A high-strength sprocket case, such as Figure 1 and Figure 2As shown, including the sprocket box body 1, the top of the sprocket box body 1 has a concave groove 2, the groove 2 is provided with a horizontal extension hoisting part 3, the hoisting part 3 is provided with two parallel, the bottom of the hoisting part 3 is fixed with the bottom wall of the groove 2, the two ends of the hoisting part 3 are fixed with the side wall of the groove 2 respectively, the hoisting hole 4 is provided on the hoisting part 3, two hoisting holes 4 are provided on each hoisting part 3.

[0026] As shown in Figure 1 and Figure 2 , the two hoisting parts 3 have diagonal tension bars 5 on the side away from each other, the diagonal tension bars 5 are located between adjacent hoisting holes 4, the diagonal tension bars 5 are perpendicular to the hoisting part 3, the width of the diagonal tension bars 5 gradually increases from top to bottom, one side of the diagonal tension bars 5 is fixed with the hoisting part 3, and the bottom of the diagonal tension bars 5 is fixed with the bottom wall of the groove 2; the design of the diagonal tension bars 5 further connects and reinforces the hoisting part 3 and the sprocket box body 1, effectively improves the structural strength of the connection between the hoisting part 3 and the sprocket box body 1, avoids the hoisting part 3 from being easily broken under stress alone, and effectively improves the safety of use.

[0027] As shown in Figure 1 and Figure 2 , the diagonal tension bars 5 are integrally formed with the hoisting part 3 and the sprocket box body 1, and the top of the hoisting part 3 has an arc-shaped protruding part 6, the height of the protruding part 6 gradually decreases from the middle to the two ends, which can effectively increase the thickness of the top of the hoisting hole 4, since this part is the main stress point during hoisting, the thickened design effectively improves the structural strength of this part and reduces the risk of breakage during hoisting.

[0028] As shown in Figure 1 and Figure 2 , the sprocket box body 1 has mounting cavities 7 on both sides, one side of the mounting cavities 7 is used for connecting and mounting with the motor of the electric hoist, and the other side of the mounting cavities 7 is used for connecting and mounting with the gear box of the electric hoist, and the bottom wall of the mounting cavities 7 is provided with reinforcing ribs, the reinforcing ribs include split ribs 8 and ring ribs 9, part of the split ribs 8 is located corresponding to the position of the hoisting part 3, the split ribs 8 are distributed at intervals around the circumference, the ring ribs 9 are annular and connect each split rib 8 into a whole, the distribution of the reinforcing ribs can well strengthen the structure of the sprocket box body 1, and the position of the split ribs 8 corresponds to the position of the hoisting part 3, which realizes further strengthening of the overall structure, and the design of the ring ribs 9 can connect each split rib 8 into a whole, so that the overall distribution of the reinforcing ribs has better effect on the structural strengthening of the sprocket box body 1.

[0029] As shown in Figure 1 and Figure 3As shown, the side of the reinforcing rib 8 corresponding to the lifting part 3 has an oblique angle extension part 10, the width of the oblique angle extension part 10 gradually increases towards the side wall of the mounting cavity 7, the oblique angle extension part 10 is fixed with the side wall of the mounting cavity 7, the overall structural strength of the reinforcing rib 8 at this position can be improved by the oblique angle extension part 10, the area of the reinforcing rib 8 connected with the sprocket case body 1 is larger, and the overall structure is better.

[0030] As shown in Figure 1 and Figure 2 As shown, the side of the reinforcing rib 8 corresponding to the lifting part 3 has an oblique angle extension part 10, the width of the oblique angle extension part 10 gradually increases towards the side wall of the mounting cavity 7, the oblique angle extension part 10 is fixed with the side wall of the mounting cavity 7, the overall structural strength of the reinforcing rib 8 at this position can be improved by the oblique angle extension part 10, the area of the reinforcing rib 8 connected with the sprocket case body 1 is larger, and the overall structure is better.

[0031] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A high-strength sprocket box, characterized in that: The sprocket box body (1) has a groove (2) on the top of the sprocket box body (1), a lifting part (3) is provided in the groove (2), a lifting hole (4) is provided on the lifting part (3), a diagonal tie (5) is provided on one side of the lifting part (3), the bottom of the diagonal tie (5) is fixed to the sprocket box body (1), and the side wall of the diagonal tie (5) is fixed to the lifting part (3).

2. The high-strength sprocket box according to claim 1, characterized in that: The hoisting part (3) is arranged parallel to the groove (2), the hoisting holes (4) are symmetrically arranged on the hoisting part (3), and the diagonal tie rod (5) is located between adjacent hoisting holes (4).

3. A high-strength sprocket box according to claim 2, characterized in that: The top of the hoisting part (3) has an arc-shaped protrusion (6), and the thickness of the protrusion (6) gradually decreases from the middle to both ends.

4. A high-strength sprocket box according to claim 1, characterized in that: The sprocket box body (1) has mounting cavities (7) on both sides. The inner wall of the mounting cavity (7) is provided with reinforcing ribs, and the reinforcing ribs have sub-ribs (8) corresponding to the position of the hoisting part (3).

5. A high-strength sprocket box according to claim 4, characterized in that: The reinforcing rib also includes a ring rib (9), which is annular and connects each sub-rib (8).

6. A high-strength sprocket box according to claim 4, characterized in that: One side of the reinforcing bar (8) has an angled extension (10), which is fixed to the side wall of the mounting cavity (7).

7. A high-strength sprocket box according to claim 1, characterized in that: One side of the hoisting part (3) has a recessed groove (11), and a reinforcing ridge (12) is formed between adjacent grooves (11).

8. A high-strength sprocket box according to claim 7, characterized in that: The reinforcing ribs (12) are distributed circumferentially around the lifting hole (4), and the length direction of the reinforcing ribs (12) extends along the radial direction of the lifting hole (4).

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