A device for quickly lifting a crankshaft

Abstract

The present invention discloses a device for rapidly lifting a crankshaft, comprising: a frame, which is arranged on a lifting mechanism and can rise or fall in a vertical direction; a positioning plate, which is horizontally arranged below the frame; a sliding mechanism, which is arranged below the positioning plate; a front end mechanism fixing block, which is arranged at one end of the sliding mechanism; a rear end mechanism fixing block, which is arranged at the other end of the sliding mechanism; a front end mechanism clamping cylinder, one end of which is fixed on the rear end mechanism fixing block and the other end is fixed on the front end mechanism fixing block; a rear end mechanism clamping cylinder, one end of which is fixed on the rear end mechanism fixing block and the other end is fixed on the frame; and a front end fixing mechanism and a rear end fixing mechanism, which are respectively arranged below the front end mechanism fixing block and the rear end mechanism fixing block. The present invention can realize rapid lifting of the crankshaft to be installed on an engine body.

Description

Technical Field

[0001] The invention relates to the technical field of engine assembly, in particular to a device for quickly lifting a crankshaft. Background Art

[0002] The crankshaft is the most important part of the engine. It bears the force from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine. The crankshaft is installed in the crankcase at the bottom of the cylinder block.

[0003] When the engine is installed on the assembly line, the crankshaft needs to be transported and lifted to be installed on the engine body. However, the current operation of transporting, lifting and installing the crankshaft on the engine body requires manual lifting and installation, and the work efficiency is very low.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The object of the present invention is to provide a device for quickly lifting a crankshaft, which can realize the quick lifting of the crankshaft so as to install it on an engine body.

[0006] To achieve the above-mentioned purpose, the present invention provides a device for quickly lifting a crankshaft, comprising: a frame, which is arranged on a lifting mechanism, is arranged in a vertical direction, and can rise or fall in the vertical direction; a positioning plate, which is horizontally arranged below the frame and fixedly connected to the frame; a sliding mechanism, which is arranged below the positioning plate; a front-end mechanism fixing block, which is arranged at one end of the sliding mechanism; a rear-end mechanism fixing block, which is arranged at the other end of the sliding mechanism, wherein the front-end mechanism fixing block and the rear-end mechanism fixing block can slide along the length direction of the respective sliding mechanisms; a front-end mechanism clamping cylinder, one end of which is fixed to the rear-end mechanism fixing block and the other end is fixed to the front-end mechanism fixing block; a rear-end mechanism clamping cylinder, one end of which is fixed to the rear-end mechanism fixing block and the other end is fixed to the frame; and a front-end fixing mechanism and a rear-end fixing mechanism, which are respectively arranged below the front-end mechanism fixing block and the rear-end mechanism fixing block, and the crankshaft is clamped by adjusting the distance between the front-end fixing mechanism and the rear-end fixing mechanism.

[0007] In one embodiment of the present invention, a top structure is disposed inside the front fixing mechanism and the rear fixing mechanism. When the crankshaft is lifted by the device, the crankshaft is clamped between the two top structures.

[0008] In one embodiment of the present invention, the sliding mechanism includes a linear guide rail, which is arranged below the positioning plate. The front end mechanism fixing block and the rear end mechanism fixing block can be positioned on the linear guide rail through linear sliding bearings respectively, and can slide freely along the linear guide rail.

[0009] In one embodiment of the present invention, the device also includes a front end locking cylinder and a rear end locking cylinder, which are respectively arranged on the front end fixing mechanism and the rear end fixing mechanism, wherein the front end locking cylinder is used to lock the clamping position after the front end mechanism clamping cylinder clamps the front end of the crankshaft into place, and the rear end locking cylinder is used to lock the clamping position after the rear end mechanism clamping cylinder clamps the rear end of the crankshaft into place.

[0010] In one embodiment of the present invention, the front-end mechanism clamping cylinder and the rear-end locking cylinder are respectively connected to the servo motor.

[0011] In one embodiment of the present invention, the positioning plate is provided with an elongated opening along the length direction near the connection portion with the frame, and the opening is used to pass through the connection structure, and the connection structure is used to fix the linear guide rail to the frame.

[0012] In one embodiment of the present invention, the length of the linear guide rail is consistent with the length of the positioning plate.

[0013] In one embodiment of the present invention, the length of the linear guide rail is at least greater than the length of the crankshaft.

[0014] Compared with the prior art, the device for quickly lifting a crankshaft according to the present invention comprises a fixing plate, a sliding mechanism, a front end mechanism fixing block, a rear end mechanism fixing block, a front end mechanism clamping cylinder, a rear end mechanism clamping cylinder, and a front end fixing mechanism and a rear end fixing mechanism. The crankshaft is clamped by adjusting the distance between the front end fixing mechanism and the rear end fixing mechanism, and the frame can rise and fall in the vertical direction, so that the crankshaft can be lifted and conveyed quickly and stably, thereby greatly improving the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of a device for quickly lifting a crankshaft according to an embodiment of the present invention;

[0016] Figure 2 is a front view of a device for quickly lifting a crankshaft according to an embodiment of the present invention;

[0017] Figure 3 is a side view of a device for quickly lifting a crankshaft according to an embodiment of the present invention;

[0018] Figure 4 4 is a top view of a device for quickly lifting a crankshaft according to an embodiment of the present invention.

[0019] Description of main reference numerals:

[0020] 1-frame, 2-positioning plate, 3-linear guide, 4-rear end mechanism clamping cylinder, 5-front end mechanism clamping cylinder, 6-front end mechanism fixing block, 7-rear end mechanism fixing block, 8-rear end fixing mechanism, 9-front end fixing mechanism, 10-rear end locking cylinder, 11-front end locking cylinder, 12-crankshaft. DETAILED DESCRIPTION

[0021] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0022] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0023] like Figures 1 to 4 As shown, the device for quickly lifting a crankshaft according to a preferred embodiment of the present invention comprises: a frame 1, a positioning plate 2, a sliding mechanism, a rear end mechanism clamping cylinder 4, a front end mechanism clamping cylinder 5, a front end mechanism fixing block 6, a rear end mechanism fixing block 7, a front end fixing mechanism 9 and a rear end fixing mechanism 8. The frame 1 is arranged on the lifting mechanism, which is arranged in the vertical direction and can rise or fall in the vertical direction. The positioning plate 2 is horizontally arranged below the frame 1 and is fixedly connected to the frame 1. The sliding mechanism is arranged below the positioning plate 2. The front end mechanism fixing block 6 is arranged at one end of the sliding mechanism. The rear end mechanism fixing block 7 is arranged at the other end of the sliding mechanism. Among them, the front end mechanism fixing block 6 and the rear end mechanism fixing block 7 can slide along the length direction of the respective sliding mechanisms. One end of the front end mechanism clamping cylinder 5 is fixed to the rear end mechanism fixing block 7, and the other end is fixed to the front end mechanism fixing block 6. One end of the rear end mechanism clamping cylinder 4 is fixed to the rear end mechanism fixing block 7, and the other end is fixed to the frame 1. The front-end fixing mechanism 9 and the rear-end fixing mechanism 8 are respectively arranged below the front-end mechanism fixing block 6 and the rear-end mechanism fixing block 7 , and the crankshaft 12 is clamped by adjusting the distance between the front-end fixing mechanism 9 and the rear-end fixing mechanism 8 .

[0024] In an embodiment, Figure 1 As shown, the inner sides of the front fixing mechanism 9 and the rear fixing mechanism 8 are both provided with a top structure. When the crankshaft is lifted by the device, the crankshaft 12 is clamped between the two top structures.

[0025] In one embodiment of the present invention, the sliding mechanism includes a linear guide rail 3, which is arranged below the positioning plate 2. The front end mechanism fixing block 6 and the rear end mechanism fixing block 7 can be positioned on the linear guide rail 3 through linear sliding bearings respectively, and can slide freely along the linear guide rail 3.

[0026] In one embodiment of the present invention, the device further comprises a front locking cylinder 11 and a rear locking cylinder 10, which are respectively arranged on the front fixing mechanism 9 and the rear fixing mechanism 8. The front locking cylinder 11 is used to lock the clamping position after the front mechanism clamping cylinder 5 clamps the front end of the crankshaft in place, and the rear locking cylinder 10 is used to lock the clamping position after the rear mechanism clamping cylinder 4 clamps the rear end of the crankshaft in place.

[0027] In one embodiment of the present invention, the front-end mechanism clamping cylinder 5, the rear-end mechanism clamping cylinder 4, the front-end locking cylinder 11 and the rear-end locking cylinder 10 are respectively connected to the servo motor.

[0028] In one embodiment of the present invention, Figure 4 As shown, the positioning plate 2 is provided with an elongated opening 13 along the length direction near the connection portion with the frame, and the opening 13 is used to pass through the connection structure, and the connection structure is used to fix the linear guide rail 3 with the frame.

[0029] In one embodiment of the present invention, the length of the linear guide rail 3 is consistent with the length of the positioning plate 2 .

[0030] In one embodiment of the present invention, the length of the linear guide rail 3 is at least greater than the length of the crankshaft 12 .

[0031] In one embodiment of the present invention, a plurality of reinforcing connecting plates are further provided on the frame, and the plurality of reinforcing connecting plates are connected to the upper end surface of the positioning plate.

[0032] The working process of the device for quickly lifting a crankshaft of the present invention is as follows: Figure 1 As described, during operation, the frame 1 of the device descends to above the crankshaft 12, the rear end mechanism clamping cylinder 4 acts to clamp the rear end of the crankshaft 12, and after clamping in place, the rear end locking cylinder 10 acts to lock the clamping position, and the front end mechanism clamping cylinder 5 acts to clamp the front end of the crankshaft 12, and after clamping in place, the front end locking cylinder 11 acts to lock the clamping position, and the lifting frame 1 can realize the rapid lifting and conveying of the crankshaft, which greatly improves the work efficiency.

[0033] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

Claims

1. A device for quickly lifting a crankshaft, characterized in that: The device for quickly lifting the crankshaft comprises: A frame, wherein the frame is arranged on the lifting mechanism, is arranged in a vertical direction, and can rise or fall in the vertical direction; A positioning plate, which is horizontally arranged below the frame and fixedly connected to the frame; A sliding mechanism, which is arranged below the positioning plate; A front end mechanism fixing block, which is arranged at one end of the sliding mechanism; A rear end mechanism fixing block, which is arranged at the other end of the sliding mechanism, wherein the front end mechanism fixing block and the rear end mechanism fixing block can slide along the length direction of the sliding mechanism respectively; A front-end mechanism clamping cylinder, one end of which is fixed to the rear-end mechanism fixing block, and the other end of which is fixed to the front-end mechanism fixing block; A rear end mechanism clamping cylinder, one end of which is fixed to the rear end mechanism fixing block and the other end of which is fixed to the frame; and A front-end fixing mechanism and a rear-end fixing mechanism, wherein the front-end fixing mechanism and the rear-end fixing mechanism are respectively arranged below the front-end mechanism fixing block and the rear-end mechanism fixing block, and the crankshaft is clamped by adjusting the distance between the front-end fixing mechanism and the rear-end fixing mechanism; The front end fixing mechanism and the rear end fixing mechanism are both provided with a top structure on their inner sides. When the crankshaft is lifted by the device, the crankshaft is clamped between the two top structures. The sliding mechanism comprises a linear guide rail, which is arranged below the positioning plate. The front-end mechanism fixing block and the rear-end mechanism fixing block can be respectively positioned on the linear guide rail through linear sliding bearings and can slide freely along the linear guide rail. The device further comprises a front locking cylinder and a rear locking cylinder, which are respectively arranged on the front fixing mechanism and the rear fixing mechanism, wherein the front locking cylinder is used to lock the clamping position after the front mechanism clamping cylinder clamps the front end of the crankshaft in place, and the rear locking cylinder is used to lock the clamping position after the rear mechanism clamping cylinder clamps the rear end of the crankshaft in place; During operation, the frame of the device descends to above the crankshaft, and the clamping cylinder of the rear end mechanism operates to clamp the rear end of the crankshaft. After clamping in place, the rear end locking cylinder operates to lock the clamping position. The clamping cylinder of the front end mechanism operates to clamp the front end of the crankshaft. After clamping in place, the front end locking cylinder operates to lock the clamping position. The lifting frame can quickly lift and convey the crankshaft.

2. The device according to claim 1, characterized in that The front end mechanism clamping cylinder and the rear end locking cylinder are respectively connected to the servo motor.

3. The device according to claim 2, characterized in that The positioning plate is provided with an elongated opening along the length direction near the connection portion with the frame, and the opening is used to pass through a connection structure, and the connection structure is used to fixedly connect the linear guide rail with the frame.

4. The device according to claim 3, characterized in that The length of the linear guide rail is consistent with the length of the positioning plate.

5. The device according to claim 4, characterized in that The length of the linear guide rail is greater than the length of the crankshaft.

Images