Safe cylinder block hoisting device without damaging cylinder hole chamfer

Abstract

The utility model discloses a safe cylinder block hoisting device without damaging a cylinder hole chamfer, and belongs to the technical field of mechanical cold machining. Three threaded holes are formed in the cuboid part, the stepped cylinder penetrates through the threaded hole in the middle of the cuboid part and is clamped and fixed to the cuboid part through the two nuts A, the annular lifting body is fixed to the upper end of the stepped cylinder, and the two cylindrical bent parts penetrate through the threaded holes in the two sides of the cuboid part. The two cylindrical bent pieces are clamped and fixed on the cuboid piece through two nuts B which are arranged up and down; and the lower ends of the two cylindrical bent pieces are hooking parts. The hooking part adopts a structure parallel to the axis of the crankshaft hole, so that the device is not contacted with the cylinder hole in use, the chamfer of the cylinder hole is not damaged, a workpiece can be stably lifted without being held by an operator, and the operation safety is improved. The three threaded holes which are asymmetrically distributed are formed in the cuboid piece, so that the gravity center offset is increased, and inclination can be avoided during hoisting.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical cold working technology, specifically relating to a cylinder block hoisting device that is safe and does not damage the cylinder bore chamfer. Background Technology

[0002] Currently, there are two types of cylinder block lifting devices. One type is where the hook is perpendicular to the crankshaft bore axis. This method is very efficient, but it is easy to damage the cylinder bore chamfer. The other type is a scissor-type structure. When using this method, the operator needs to hold the tail end of the scissor-type structure, otherwise there is a risk of it opening and posing a danger. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a safe cylinder block lifting device that does not damage the cylinder bore chamfer. During use, it does not contact the cylinder bore chamfer, thus preventing damage. Furthermore, it allows for stable lifting of the workpiece without operator intervention, improving operational safety.

[0004] The technical solution adopted by this utility model is:

[0005] A safe cylinder block lifting device that does not damage the cylinder bore chamfer includes an annular lifting body, a stepped cylinder, a cuboid, two nuts A, two curved cylindrical parts, and two nuts B. The cuboid has three threaded holes. The lower end of the stepped cylinder passes through the threaded hole in the middle of the cuboid from top to bottom, and the lower end of the stepped cylinder is provided with external threads and is clamped and fixed to the cuboid by the two nuts A arranged above and below. The annular lifting body is fixed to the upper end of the stepped cylinder. The upper ends of the two curved cylindrical parts pass through the threaded holes on both sides of the cuboid from bottom to top. The upper ends of the two curved cylindrical parts are provided with external threads and are clamped and fixed to the cuboid by the two nuts B arranged above and below. The lower ends of the two curved cylindrical parts are hooks.

[0006] Compared with the prior art, the present invention has the following advantages:

[0007] The hook part of this utility model adopts a structure parallel to the crankshaft hole axis. When in use, the device does not contact the cylinder hole and will not damage the cylinder hole chamfer. When in use, the workpiece can be stably lifted without the operator's hand, which improves the safety of operation.

[0008] The rectangular component of this invention has three asymmetrically distributed threaded holes, which increases the offset of the center of gravity and can prevent tilting during lifting. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a schematic diagram of the utility model in use;

[0011] Among them: 1. Circular lifting body; 2. Stepped cylinder; 3. Nut A; 4. Washer A; 5. Cylindrical bent part; 501. Hook part; 6. Nut B; 7. Washer B; 8. Cuboid part. Detailed Implementation

[0012] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model will be provided below with reference to the accompanying drawings.

[0013] like Figure 1 , Figure 2 As shown, this utility model provides a safe cylinder block lifting device that does not damage the cylinder bore chamfer, including an annular lifting body 1, a stepped cylinder 2, a cuboid part 8, two nuts A3, two cylindrical bent parts 5, and two nuts B6; the cuboid part 8 has three threaded holes, which are asymmetrically distributed. The middle threaded hole is located at the center of gravity during simulated lifting, and the threaded holes on both sides are arranged according to the simulated lifting scheme. The lower end of the stepped cylinder 2 passes through the cuboid part 8 from top to bottom. The middle threaded hole, and the lower end of the stepped cylinder 2 is provided with external thread and is clamped and fixed to the cuboid part 8 by two nuts A3 set above and below. The upper end of the stepped cylinder 2 is fixed with an annular lifting body 1. The upper ends of the two cylindrical curved parts 5 pass through the threaded holes on both sides of the cuboid part 8 from bottom to top. The upper ends of the two cylindrical curved parts 5 are provided with external thread and are clamped and fixed to the cuboid part 8 by two nuts B6 set above and below. The lower ends of the two cylindrical curved parts 5 are hook parts 501.

[0014] Since the hook part 501 of the cylindrical bent part 5 and the annular lifting body 1 have directional requirements, the threaded hole provided on the cuboid part 8 plays a directional role.

[0015] The bottom of the hook part 501 is a flat bottom that is parallel to the axis of the crankshaft hole in the cylinder block.

[0016] A washer A4 is provided between each of the nuts A3 and the cuboid component 8.

[0017] A washer B7 is provided between each of the nuts B6 and the cuboid part 8.

[0018] Nuts A3 and B6 are hexagonal cylindrical nuts.

[0019] Gasket A and gasket B are cylindrical gaskets.

[0020] The basic operating steps are as follows:

[0021] 1. Insert the circular hole of the annular lifting body 1 into the hook of the external lifting device (such as a pneumatic balancer).

[0022] 2. Gently place the hook part 501 of the cylindrical bent part 5 into the first and fourth cylinder holes of the cylinder block to be hoisted until it is close to the position of the cylinder block air passage.

[0023] 3. Move the annular lifting body 1 towards the vent hole until the hook part 501 of the cylindrical curved part 5 passes through the vent hole and goes as deep as possible.

[0024] 4. Lift the external lifting device (such as a pneumatic balancer) until the cylinder body is lifted, and move it to the target position.

[0025] 5. Reverse steps 3 and 2 to separate the device from the cylinder block.

[0026] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A cylinder block lifting device that is safe and does not damage the cylinder bore chamfer, characterized in that: The device includes a circular lifting body (1), a stepped cylinder (2), a cuboid (8), two nuts A (3), two cylindrical bent parts (5), and two nuts B (6). The cuboid (8) has three threaded holes. The lower end of the stepped cylinder (2) passes through the threaded hole in the middle of the cuboid (8) from top to bottom. The lower end of the stepped cylinder (2) is provided with external threads and is clamped and fixed to the cuboid (8) by the two nuts A (3) provided above and below. The upper end of the stepped cylinder (2) is fixed with a circular lifting body (1). The upper ends of the two cylindrical bent parts (5) pass through the threaded holes on both sides of the cuboid (8) from bottom to top. The upper ends of the two cylindrical bent parts (5) are provided with external threads and are clamped and fixed to the cuboid (8) by the two nuts B (6) provided above and below. The lower ends of the two cylindrical bent parts (5) are hooks (501).

2. The cylinder block lifting device that ensures safety and does not damage the cylinder bore chamfer according to claim 1, characterized in that: The bottom of the hook (501) is a flat bottom parallel to the axis of the crankshaft hole in the cylinder block.

3. The cylinder block lifting device that ensures safety and does not damage the cylinder bore chamfer according to claim 1, characterized in that: A washer A (4) is provided between each of the nuts A (3) and the cuboid part (8).

4. The cylinder block lifting device that ensures safety and does not damage the cylinder bore chamfer according to claim 1, characterized in that: A washer B (7) is provided between each of the nuts B (6) and the cuboid part (8).

5. A cylinder block lifting device that ensures safety and does not damage the cylinder bore chamfer according to claim 1, characterized in that: The three threaded holes of the cuboid component (8) are asymmetrically distributed, with the middle threaded hole located at the center of gravity during simulated hoisting, and the threaded holes on both sides arranged according to the simulated hoisting scheme.

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