CN218947526U

CN218947526U - Dismounting tool for diesel engine camshaft damper

Info

Publication number: CN218947526U
Application number: CN202222953550.8U
Authority: CN
Inventors: 许麟; 庄磊; 聂嘉良; 丁乐中; 严欢
Original assignee: CSSC Marine Power Zhenjiang Co Ltd
Current assignee: CSSC Marine Power Zhenjiang Co Ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-05-02
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses a disassembly and assembly tool of a diesel engine camshaft damper, which comprises a bracket, a bracket and a crowbar, wherein two sides of the bracket are respectively fixedly connected with two sides of a frame camshaft box opening; the bracket is fixed on the bottom of the bracket and comprises a bottom plate and two baffles, the middle part of the bottom plate is fixedly connected with the bottom of the bracket, the outer end of the bottom plate is suspended outside the frame cam box, the inner end of the bottom plate extends into the bottom of the cam shaft damper in the frame cam box, and the two baffles are respectively fixed on two sides of the outer end of the bottom plate; one end of the pry bar is screwed and fixed on a threaded hole in the periphery of the cam shaft damper. The utility model can ensure that the camshaft damper accurately positions the mounting position in the assembly process, thereby avoiding the interference of complex structures in the camshaft box of the frame, further ensuring the assembly quality of the diesel engine, forming a labor-saving lever by the crowbar and the camshaft damper, saving time and labor in the whole assembly and disassembly process, having high working efficiency, safety and reliability.

Description

Dismounting tool for diesel engine camshaft damper

Technical Field

The utility model relates to a disassembly and assembly tool, in particular to a disassembly and assembly tool for a camshaft shock absorber of a diesel engine, and belongs to the technical field of diesel engine accessories.

Background

The cam shaft is one of main moving parts of the diesel engine, and when the diesel engine stably operates, the cam shaft performs approximately constant-speed rotary motion to drive the rocker arm to periodically move. Due to the complex motion characteristics of the cam shaft and the rocker arm transmission mechanism, periodically-changed unbalanced forces and moments are necessarily generated, the unbalanced forces and moments not only affect the strength of the cam shaft, but also increase the abrasion and load of rollers, bushings and bearing bushes of the rocker arm mechanism, and the vibration of a diesel engine and even a ship body is caused to be local or overall, so that a large marine diesel engine is usually assembled with a cam shaft damper to balance the unbalanced forces and moments, and the vibration is lightened.

At present, the camshaft bumper shock absorber adopts the mode of manual handling to install, because its weight is heavier, and the mounted position in the frame is higher, if adopt manual handling, then there is the installation time overlength, when installing be difficult to avoid the bumper shock absorber to take place with camshaft and frame and produce the collision, and then cause the bruise scheduling problem of damaging, influence the assembly quality of diesel engine, manual handling wastes time and energy simultaneously, assembly efficiency is low to the operator carries the security risk of bumper shock absorber when operating platform about also great, takes place the incident easily.

Disclosure of Invention

The utility model aims to provide a disassembly and assembly tool of a diesel engine camshaft shock absorber, which has the advantages of simple structure, convenience in operation, rapidness and high efficiency.

The utility model is realized by the following technical scheme:

a disassembly and assembly tool of a diesel engine camshaft damper comprises a bracket, a bracket and a crowbar; the bracket and the bracket are fixedly connected into an integral structure, and two sides of the bracket are respectively and fixedly connected with two sides of a frame cam box opening through fasteners; the bracket is fixed on the bottom of the bracket, the bracket comprises a bottom plate and two baffles, the middle part of the bottom plate is fixedly connected with the bottom of the bracket, the outer end of the bottom plate is suspended outside the frame camshaft box, the inner end of the bottom plate extends into the bottom of the camshaft damper in the frame camshaft box, and the two baffles are respectively fixed on two sides of the outer end of the bottom plate; and one end of the pry bar is provided with threads, and when the pry bar is disassembled, the camshaft damper is supported on the inner end of the bottom plate, and one end of the pry bar is screwed and fixed on the threaded hole on the periphery of the camshaft damper.

The object of the present utility model can be further achieved by the following technical means.

The disassembly and assembly tool of the diesel engine camshaft damper is characterized in that the bracket is of a groove shape.

The assembly and disassembly tools of the diesel engine camshaft damper, wherein the outer end of the bottom plate is a horizontal section, and the end part of the outer end of the bottom plate is bent upwards to form a flange.

The foregoing assembly and disassembly tools of diesel engine camshaft bumper shock absorber, its characterized in that: the inner end of the bottom plate is an upward bent inclined section, and the inclined angle alpha is 4-5 degrees.

The utility model has simple structure, low cost and convenient operation. The bracket is used for supporting the camshaft damper, provides a channel for the camshaft damper to enter and exit the frame camshaft box, ensures that the camshaft damper can accurately position the mounting position of the camshaft damper in the assembly process, thereby avoiding the interference of the complex structure inside the frame camshaft box, further ensuring the assembly quality of the diesel engine, and the crowbar and the camshaft damper form a labor-saving lever. In addition, the flange at the end part of the outer end of the bottom plate and the baffles at the two sides of the flange can prevent the camshaft damper from rolling down during disassembly and assembly, and the inclined section at the inner end of the bottom plate can prevent the camshaft damper from rolling down into the frame due to gravity factors, so that the safety and the reliability of the utility model are greatly improved by the measures.

Advantages and features of the utility model will be illustrated and explained by the following non-limiting description of preferred embodiments, given by way of example only with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a cross-sectional view A-A of fig. 1.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

As shown in fig. 1 and 2, the present utility model includes a bracket 1, a bracket 2, and a crowbar 3. The bracket 1 is a groove type, the bracket 1 and the bracket 2 are fixedly connected into an integral structure, and two sides of the bracket 1 are respectively fixedly connected with two sides of a box opening of the frame cam box 4 through fasteners. The bracket 2 is welded and fixed on the bottom of the bracket 1, the bracket 2 comprises a bottom plate 21 and two baffle plates 22, the middle part of the bottom plate 21 is welded and connected with the bottom of the bracket 1, the outer end of the bottom plate 21 is suspended outside the box opening of the rack cam box 4, the outer end of the bottom plate 21 is a horizontal section, the end part of the outer end of the bottom plate is bent upwards to form a flange 23, the inner end of the bottom plate 21 extends into the bottom of the cam shaft damper 5 in the box opening of the rack cam box 4, the inner end of the bottom plate 21 is a bent upwards inclined section 24, the inclined angle alpha is 4-5 degrees, in the embodiment, alpha is 5 degrees, the two baffle plates 22 are respectively welded and fixed on two sides of the outer end of the bottom plate 21, the bottom of the baffle plates 22 is welded and connected with the bottom plate 21, and the inner side of the baffle plates is welded and connected with the bracket 1. One end of the pry bar 3 is provided with threads, and when the cam shaft damper 5 is dismounted, the cam shaft damper 5 is supported on the inner end of the bottom plate 21, and one end of the pry bar 3 is screwed and fixed on a threaded hole in the periphery of the cam shaft damper 5.

When the camshaft damper 5 is dismounted, the utility model is mounted on a frame through a fastener, the pry bar 3 is screwed into a screw hole on the periphery of the camshaft damper 5, meanwhile, the fastening bolt 6 of the camshaft damper 5 and the frame is loosened, the camshaft damper 5 is pryed and guided by the pry bar 3, the camshaft damper 5 rolls from the inside of the camshaft box 4 along the inner end of the bottom plate 21 to the outer end of the bottom plate 21, then the pry bar 3 is unscrewed from the camshaft damper 5, the lifting bolt 7 is mounted, and the lifting rope is tied to the lifting bolt 7, so that the camshaft damper 5 can be lifted to a specified position.

The installation process of the camshaft damper 5 is opposite to the disassembly process, and it is noted that after the camshaft damper 5 is hung on the outer end of the bottom plate 21 during installation, the pry bar 3 is first screwed into the camshaft damper 5, and then the lifting bolt 7 is loosened, so as to prevent accidents and losses caused by the rolling of the camshaft damper.

In addition to the above embodiments, other embodiments of the present utility model are possible, and all technical solutions formed by equivalent substitution or equivalent transformation are within the scope of the present utility model.

Claims

1. The utility model provides a mounting and dismounting tool of diesel engine camshaft bumper shock absorber which characterized in that: comprises a bracket, a bracket and a crowbar; the bracket and the bracket are fixedly connected into an integral structure, and two sides of the bracket are respectively and fixedly connected with two sides of a frame cam box opening through fasteners; the bracket is fixed on the bottom of the bracket, the bracket comprises a bottom plate and two baffles, the middle part of the bottom plate is fixedly connected with the bottom of the bracket, the outer end of the bottom plate is suspended outside the frame camshaft box, the inner end of the bottom plate extends into the bottom of the camshaft damper in the frame camshaft box, and the two baffles are respectively fixed on two sides of the outer end of the bottom plate; and one end of the pry bar is provided with threads, and when the pry bar is disassembled, the camshaft damper is supported on the inner end of the bottom plate, and one end of the pry bar is screwed and fixed on the threaded hole on the periphery of the camshaft damper.

2. The assembly and disassembly tools for a diesel camshaft damper of claim 1, wherein: the support is of a groove shape.

3. The assembly and disassembly tools for a diesel camshaft damper of claim 1, wherein: the outer end of the bottom plate is a horizontal section, and the end part of the outer end of the bottom plate is bent upwards to form a flange.

4. The assembly and disassembly tools for a diesel camshaft damper of claim 1, wherein: the inner end of the bottom plate is an upward bent inclined section, and the inclined angle alpha is 4-5 degrees.