Diesel engine valve guide pipe dismounting device

Abstract

The utility model discloses a diesel engine valve guide pipe disassembling and assembling device which comprises a frame and a screw rod, the screw rod is connected to the frame in a threaded mode, and the end, inserted into the frame, of the screw rod is connected with a disassembling guide rod or an installing guide rod so that a valve guide pipe can be separated from a cylinder head or the valve guide pipe can be installed in the cylinder head. The end, away from the screw, of the frame is provided with a guide-out hole, and the detached valve guide pipe falls off along the guide-out The installation guide rod is connected with a base plate which abuts against one end of the valve guide pipe, and the installation guide rod abuts against the installation height limiting block so that the valve guide pipe can be inserted into the cylinder head. According to the diesel engine valve guide pipe dismounting device, the dismounting guide rod is inserted into the valve guide pipe, the valve guide pipe is separated from a cylinder head, it is guaranteed that the valve guide pipe does not deform or break in the dismounting process, damage to the cylinder head is reduced, the mounting guide rod and the dismounting guide rod are replaced, the valve guide pipe is mounted in the cylinder head, and the dismounting efficiency is improved. The installation size of the valve guide pipe is guaranteed, installation can be in place at a time, and the protruding height does not need to be adjusted.

Description

Technical Field

[0001] The utility model belongs to the field of equipment maintenance of marine petroleum engineering, in particular to a diesel engine valve guide disassembler. Background Art

[0002] Currently, the valve guide is removed from the cylinder head and disassembled by hammering, thereby separating the valve guide from the cylinder head; when replacing a new valve guide, the installation height of the valve guide to the cylinder head needs to be manually measured multiple times.

[0003] Due to the high hardness and brittleness of the valve guide, the previous method of disassembly using hammering can easily cause the valve guide to break, which is difficult to remove from the cylinder head. If the valve guide breaks during installation, it will increase the maintenance cost, and the height required for valve guide installation is difficult to control.

[0004] Therefore, it is urgent to design a diesel engine valve guide disassembler to solve the above-mentioned problem of replacing the valve guide. Utility Model Content

[0005] In order to solve the technical problems mentioned in the background technology, such as the high hardness and brittleness of the valve guide, the use of the hammer method to disassemble the valve guide can easily lead to the breakage of the valve guide, which will increase the maintenance cost during installation, and the height size required for the installation of the valve guide is difficult to control, a diesel engine valve guide disassembler is provided to solve the problem of replacing the valve guide.

[0006] To achieve the above-mentioned purpose, the specific technical solution of the diesel engine valve guide disassembler of the present invention is as follows:

[0007] A diesel engine valve guide disassembler and assembler comprises a frame and a screw, wherein the screw is screwed onto the frame, and one end of the screw inserted into the frame is connected to a disassembly guide rod or an installation guide rod so as to detach the valve guide from the cylinder head or install the valve guide into the cylinder head; an outlet hole is provided at one end of the frame away from the screw, and the disassembled valve guide falls off along the outlet hole; the installation guide rod is connected to a pad, which abuts against one end of the valve guide, and the installation guide rod abuts against an installation height limit block so that the valve guide is inserted into the cylinder head.

[0008] Furthermore, the disassembly guide rod includes a first circular tube segment and a second circular tube segment, the second circular tube segment is arranged at one end of the first circular tube segment, and the first circular tube segment is connected to the screw rod at one end away from the second circular tube segment.

[0009] Furthermore, the second round tube segment is vertically inserted into the valve guide, the first round tube segment abuts against the valve guide, and the screw is rotated downward to separate the valve guide from the cylinder head.

[0010] Furthermore, a screw base is provided on the outer wall of the frame, and the screw rod is screwed to the screw base.

[0011] Furthermore, the screw rod and the lead-out hole of the frame are located on the same axis.

[0012] Furthermore, one end of the guide rod is fixedly connected to the screw rod, a pad is screwed on the guide rod, and one end of the guide rod away from the screw rod is plugged into the valve guide.

[0013] Furthermore, an installation height limit block is inserted into one end of the valve guide away from the installation guide rod, and the installation guide rod is inserted into one end of the valve guide and abuts against the installation height limit block, so that the valve guide is installed to the cylinder head and protrudes 11mm or 14mm.

[0014] Furthermore, the frame is rectangular, and both sides of the frame are open so that the cylinder head can be abutted against the inside of the frame.

[0015] Furthermore, a handle is provided at one end of the screw rod away from the screw base, and the handle is rotated to move the screw rod vertically.

[0016] Furthermore, the diameter of the first circular tube segment is greater than the diameter of the second circular tube segment.

[0017] The diesel engine valve guide disassembler of the utility model has the following advantages:

[0018] By inserting the valve guide into the disassembly guide rod, the valve guide is removed from the cylinder head, ensuring that the valve guide does not deform or break during disassembly, reducing damage to the cylinder head. The valve guide is installed into the cylinder head by replacing the installation guide rod with the removal guide rod, ensuring the correct installation dimensions of the valve guide. During installation, the valve guide can be installed in one go without adjusting the protrusion height, ensuring the correct installation dimensions. This application significantly reduces work time, simplifies disassembly, and achieves high installation precision, saving maintenance man-hours and reducing valve guide wear due to installation errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic structural diagram of a diesel engine valve guide disassembler according to the present invention.

[0020] Description of the marks in the figure:

[0021] 1. Frame; 2. Screw; 3. Remove the guide rod; 31. First circular tube section; 32. Second circular tube section; 4. Install the guide rod; 5. Lead-out hole; 6. Pad; 7. Install the height limit block; 8. Screw the base; 9. Handle. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0023] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is intended to be within the scope of the present invention and to form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0024] Please refer to the attached Figure 1 The utility model describes a diesel engine valve guide disassembler.

[0025] like Figure 1 As shown, the diesel engine valve guide disassembler in the utility model includes a frame 1 and a screw rod 2, the screw rod 2 is screwed on the frame 1, and the end of the screw rod 2 inserted into the frame 1 is connected to a disassembly guide rod 3 or an installation guide rod 4 to detach the valve guide from the cylinder head or install the valve guide into the cylinder head. The end of the frame 1 away from the screw rod 2 is provided with a lead-out hole 5, and the disassembled valve guide falls off along the lead-out hole 5; the installation guide rod 4 is connected to a pad 6, which abuts against one end of the valve guide, and the installation guide rod 5 abuts against the installation height limit block 7 to allow the valve guide to be inserted into the cylinder head.

[0026] By inserting the valve guide into the removal guide rod 3, the valve guide is removed from the cylinder head, ensuring that the valve guide does not deform or break during removal, and reducing damage to the cylinder head. The valve guide is then installed into the cylinder head by replacing the installation guide rod 4 with the removal guide rod 3, ensuring the correct installation dimensions. The valve guide can be installed in one go without adjusting the protrusion height, ensuring the correct installation dimensions. This application significantly reduces work time, simplifies disassembly, and achieves high installation precision, saving maintenance man-hours and reducing valve guide wear due to installation errors.

[0027] Further, if Figure 1 As shown, the disassembly guide rod 3 includes a first circular tube segment 31 and a second circular tube segment 32. The second circular tube segment 32 is arranged at one end of the first circular tube segment 31, and the first circular tube segment 31 is connected to the screw 2 at one end away from the second circular tube segment 32; the second circular tube segment 32 is vertically inserted into the valve guide, the first circular tube segment 31 abuts against the valve guide, and the screw 2 rotates downward to disengage the valve guide from the cylinder head; a screw base 8 is provided on the outer wall of the frame 1, and the screw 2 is screwed to the screw base 8.

[0028] In this embodiment, preferably, the first circular tube segment 31 and the second circular tube segment 32 are both cylinders, the second circular tube segment 32 is vertically welded to one end of the first circular tube segment 31, and the first circular tube segment 31 is fixedly connected to the end of the screw 2 away from the end of the second circular tube segment 32, so that the screw 2, the first circular tube segment 31 and the second circular tube segment 32 are located on the same straight line.

[0029] The end of the second circular tube segment 32 away from the first circular tube segment 31 is vertically inserted into the valve guide. Preferably, the diameter of the second circular tube segment 32 is the same as the inner diameter of the valve guide to ensure that the outer wall of the second circular tube segment 32 is in close contact with the inner wall of the valve guide segment.

[0030] The diameter of the first circular tube segment 31 is the same as the overall diameter of the valve guide. Preferably, the first circular tube segment 31 is consistent with the inner diameter of the cylinder head to ensure that it abuts against the valve guide, prevents the valve guide from being unevenly stressed, and prevents it from tilting. A screw base 8 is vertically welded on the outer wall of the frame 1, and the screw 2 is screwed on the screw base 8. Preferably, the screw base 8 is located on the center line of the frame 1, and the screw 2 is screwed in the middle of the screw base 8. Lifting holes are provided on both sides of the screw base 8 to carry the remover.

[0031] Further, if Figure 1 As shown, the screw rod 2 and the guide hole 5 of the frame 1 are located on the same axis; one end of the mounting guide rod 4 is fixedly connected to the screw rod 2, and a pad 6 is screwed on the mounting guide rod 4. The end of the mounting guide rod 4 away from the screw rod 2 is plugged into the valve guide; the end of the valve guide away from the mounting guide rod 4 is plugged into the mounting height limit block 7, and the mounting guide rod 4 is inserted into one end of the valve guide and abuts against the mounting height limit block 7, so that the valve guide is installed to the cylinder head and protrudes 11 mm or 14 mm.

[0032] In this embodiment, preferably, the outlet hole 5 is located at the center of the lower end of the frame, so that the screw and the outlet hole are located on the same axis, so that the valve guide is discharged along the outlet hole 5.

[0033] Preferably, one end of the installation guide rod 4 is fixedly connected to the screw rod 2, and the installation guide rod 4 and the removal guide rod 3 can be replaced. A pad 6 is horizontally screwed on the installation guide rod 4. The diameter of the installation guide rod 4 is consistent with the internal diameter of the valve guide. The installation guide rod 4 is inserted into the valve guide away from the end of the screw rod 2 to install the valve guide.

[0034] The end of the valve guide away from the mounting guide rod 4 is connected with an installation height limit block 7. Preferably, the installation height limit block 7 is first inserted into the valve guide, and then one end of the mounting guide rod 4 is inserted into the end of the valve guide away from the installation height limit block 7, and the end with the installation height limit block 7 is inserted into the cylinder head. When the mounting guide rod 4 abuts against the installation height limit block 7, the valve guide is quickly positioned to ensure that it protrudes 11 mm or 14 mm in height after installation.

[0035] Further, if Figure 1 As shown, the frame 1 is rectangular, and both sides of the frame 1 are open so that the cylinder head can be abutted against the inside of the frame 1; a handle 9 is provided at the end of the screw rod 2 away from the screw base 8, and the handle 9 is rotated to move the screw rod 2 vertically; the diameter of the first circular tube segment 31 is larger than the diameter of the second circular tube segment 32.

[0036] In this embodiment, preferably, the frame 1 is rectangular as a whole, and both sides of the frame 1 are open to facilitate placing the cylinder head and valve guide into the frame 1; a handle 9 is provided at the end of the screw 2 away from the screw base 8, and the handle 9 is rotated to enable the screw 2 to rotate upward or downward in the vertical direction.

[0037] The working principle of the diesel engine valve guide disassembler in the utility model is as follows:

[0038] To remove the valve guide, first place the cylinder head on the frame 1, insert the second round tube section 32 into the valve guide, and secure the screw 2 screwed to the frame 1 to the first round tube section 31. Align the outlet hole 5 at the lower end of the frame 1 with the other end of the valve guide, and rotate the screw 2 to press the valve guide out of the cylinder head.

[0039] When installing the valve guide, first use a square to check the verticality of the valve guide, then put the installation height limit block 7 on the outside of the valve guide, place the installation guide rod 4 and the backing plate 6 on the upper end of the valve guide, and press down with the screw 2 until the installation guide rod 4 contacts the installation height limit block 7. Ensure that the valve guide protrudes 11mm or 14mm after being installed to the cylinder head.

[0040] Based on a diesel engine valve guide remover and installer, the present invention inserts a disassembly guide rod into the valve guide, allowing the valve guide to be removed from the cylinder head. This ensures that the valve guide does not deform or break during removal, minimizing damage to the cylinder head. The valve guide is installed into the cylinder head by replacing the installation guide rod 4 with the removal guide rod 3, ensuring the correct installation dimensions. The valve guide can be installed in one go, eliminating the need to adjust the protrusion height, ensuring the correct installation dimensions. This application significantly reduces work time, simplifies disassembly, and achieves high installation precision, saving maintenance time and reducing valve guide wear due to installation errors.

[0041] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A diesel engine valve guide disassembler, characterized in that: It includes a frame and a screw, the screw is screwed on the frame, and one end of the screw inserted into the frame is connected to a disassembly guide rod or an installation guide rod to separate the valve guide from the cylinder head or install the valve guide into the cylinder head. The end of the frame away from the screw is provided with a lead-out hole, and the disassembled valve guide falls off along the lead-out hole; the installation guide rod is connected to a pad, the pad abuts against one end of the valve guide, and the installation guide rod abuts against the installation height limit block to allow the valve guide to be inserted into the cylinder head.

2. The diesel engine valve guide disassembler according to claim 1, characterized in that: The disassembly guide rod comprises a first circular tube segment and a second circular tube segment. The second circular tube segment is arranged at one end of the first circular tube segment. The first circular tube segment is connected to the screw rod at one end away from the second circular tube segment.

3. The diesel engine valve guide disassembler according to claim 2, characterized in that: The second round tube section is vertically inserted into the valve guide, the first round tube section abuts against the valve guide, and the screw is rotated downward to separate the valve guide from the cylinder head.

4. The diesel engine valve guide remover and assembler according to claim 1, characterized in that: A screw connection base is provided on the outer wall of the frame, and the screw rod is screwed to the screw connection base.

5. The diesel engine valve guide remover and assembler according to claim 4, characterized in that: The screw rod and the lead-out hole of the frame are located on the same axis.

6. The diesel engine valve guide remover and assembler according to claim 1, characterized in that: One end of the guide rod is fixedly connected to the screw rod, a backing plate is screwed on the guide rod, and one end of the guide rod away from the screw rod is plugged into the valve guide.

7. The diesel engine valve guide remover and assembler according to claim 6, characterized in that: An installation height limit block is inserted into the end of the valve guide away from the installation guide rod, and the installation guide rod is inserted into one end of the valve guide and abuts against the installation height limit block, so that the valve guide is installed to the cylinder head and protrudes 11mm or 14mm.

8. The diesel engine valve guide remover and assembler according to claim 4, characterized in that: The frame is rectangular and open on both sides to allow the cylinder head to abut against the inside of the frame.

9. The diesel engine valve guide remover and assembler according to claim 4, characterized in that: A handle is provided at one end of the screw rod away from the screw-connected base, and the handle is rotated to move the screw rod vertically.

10. The diesel engine valve guide remover and assembler according to claim 3, characterized in that: The diameter of the first circular tube segment is greater than the diameter of the second circular tube segment.

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