CN209304489U - A kind of ring of cylinder head disassembling fixture - Google Patents

Abstract

The utility model discloses a kind of ring of cylinder head disassembling fixtures, and including the pulling block that can extend into the seat ring, the pulling block is equipped with arc convex edge, are equipped with screw hole at the rotation center of the pulling block；It further include the limiting bracket being adapted with the top surface of cylinder head, the limiting bracket is equipped with bolt compatible with the screw hole of the pulling block；The limiting bracket includes supporting plate, and the lower section of the supporting plate, which is equipped with, increases block with what the top surface of cylinder head was adapted, and the supporting plate is equipped with and through-hole, and protrusion is equipped with multiple equally distributed supporting ribs around the supporting plate, and the block that increases is connect with the supporting rib.The ring of cylinder head disassembling fixture of the utility model will not cause damage, dismounting speed fast to cylinder head, will not cause damage, dismounting speed fast to cylinder head, it is easy to operate, entire tool structure design rationally, convenient for quickly completing to assemble by tooling, improves dismounting speed.

Description

A kind of ring of cylinder head disassembling fixture

Technical field

The utility model relates to engine maintenance technical fields, more specifically, it relates to which a kind of ring of cylinder head is dismantled Tooling.

Background technique

The seat ring installed in engine cylinder cap is occurring that figure is not achieved using abrasion, change in design and processing dimension When paper requires, needing replacing after the assembly is completed.Since seat ring and seat ring mounting hole are interference fit, and due to seat ring Material and air cylinder head structure limitation, cause seat ring being difficult to split out again after the assembly is completed.Simultaneously in the mistake of replacement seat ring Cheng Zhong carries out beaing disassembly, it is easy to make seat ring mounting hole using the direct counter race of the tools such as traditional iron hammer, hawkbill, chisel It wears or cracks, to influence the installation of new seat ring, even result in cylinder head and scrap.

Existing technology directly carries out ring of cylinder head using tools such as iron hammer, hawkbill, chisels to beat disassembly, there is following lack Point: it carries out beaing disassembly, material and cylinder of the method due to seat ring using the direct counter race of the tools such as iron hammer, hawkbill, chisel The limitation of lid structure, it is easy to damage seat ring mounting hole, to influence the installation of new seat ring, result even in cylinder head and scrap. In addition, whole dismounting process is time-consuming and laborious, and inefficiency.

Utility model content

The technical problems to be solved in the utility model is the above-mentioned deficiency for the prior art, and the purpose of this utility model is A kind of ring of cylinder head disassembling fixture that will not cause damage, dismounting speed fast to cylinder head is provided.

To achieve the above object, the utility model provides a kind of ring of cylinder head disassembling fixture, including can extend into institute The pulling block in seat ring is stated, the pulling block is equipped with arc convex edge, is equipped with screw hole at the rotation center of the pulling block；Further include and gas The adaptable limiting bracket in the top surface of cylinder cap, the limiting bracket are equipped with bolt compatible with the screw hole of the pulling block；Institute Stating limiting bracket includes supporting plate, and the lower section of the supporting plate, which is equipped with, increases block with what the top surface of cylinder head was adapted, on the supporting plate It is equipped with and through-hole, protrusion is equipped with multiple equally distributed supporting ribs around the supporting plate, described to increase block and the supporting rib Connection.

Further, the pulling block is flat bit architecture, and the top of the arc convex edge is equipped with chamfering structure.

Further, the long washer mutually limited with the head of the bolt is equipped with above the supporting plate.

Further, the top of the long washer is equipped with the first positioning surface, and the head lower end of the bolt is equipped with and institute State the second adaptable positioning surface of the first positioning surface.

Beneficial effect

Compared with prior art, the ring of cylinder head disassembling fixture of the utility model has the beneficial effect that: this cylinder head Seat ring disassembling fixture will not cause damage, dismounting speed fast to cylinder head, and disassembling fixture structure is simple, easy to operate；Entire work Assembling structure design rationally, convenient for quickly completing to assemble by tooling, greatly improves work efficiency；The pulling block of different size is replaced, Various sizes of seat ring can be dismantled.

Detailed description of the invention

Fig. 1 is the operation schematic diagram of the ring of cylinder head disassembling fixture of the utility model；

Fig. 2 is the structural schematic diagram of supporting plate in the utility model；

Fig. 3 is the structural front view of pulling block in the utility model；

Fig. 4 is the structure top view of pulling block in the utility model；

Fig. 5 is the structural schematic diagram of seat ring in the utility model.

In figure: 1, bolt；11, the second positioning surface；2, long washer；21, the first positioning surface；22, third positioning surface；3, it props up Plate；31, supporting rib；32, through-hole；4, increase block；5, pulling block；51, arc convex edge；52, screw hole；53, chamfering structure；6, seat ring； 61, annular groove；7, cylinder head.

Specific embodiment

With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical Novel protection scope is not limited by the specific implementation.

Specific embodiment of the present utility model is such that as shown in Figs. 1-5, a kind of ring of cylinder head method for dismounting, The following steps are included: firstly, processing an annular groove 61 on 6 hole wall of seat ring in cylinder head 7；Then, setting can on seat ring 6 The pulling block 5 that fastens of annular groove 61, and screw hole 52 is set at the rotation center of pulling block 5；Finally, being set in the top of seat ring 6 Set a limiting bracket, the bolt 1 that the screw hole 52 of setting and pulling block 5 cooperates on limiting bracket, torsion bolt 1 can by pulling block 5 and Seat ring 6 is pulled upwardly；In this method for dismounting, pulling block 5 engages with annular groove 61, after bolt 1 is passed through limiting bracket, then by bolt 1 It is pre- to twist a bit of screw hole 52 into pulling block 5, continue to twist bolt 1, since the head of bolt 1 is mutually limited with limiting bracket, rotation When turning bolt 1, limiting bracket is close to cylinder head, and pulling block 5 will be by the upward pulling force of screw thread application on bolt 1, can be by seat Circle 6 is split out from cylinder head 7, and the disassembling fixture structure is simple, and can quickly will in the case where guaranteeing not damaging cylinder head 7 Seat ring 6 is split out；The pulling block 5 for replacing different size, can dismantle various sizes of seat ring 6.

In the present embodiment, pulling block 5 is flat bit architecture, pulling block 5 two at be arranged and can be adapted with annular groove 61 on flat position Arc convex edge 51, due to arc convex edge 51 diameter be greater than seat ring 6 aperture, set flat bit architecture for pulling block 5, convenient for draw Block 5 protrudes into seat ring 6, cooperates convenient for arc convex edge 51 and annular groove 61；By the annular groove 61 of the arc convex edge 51 of pulling block 5 and seat ring 6 When engaging, annular groove 61 is first inserted into the arc convex edge 51 of side by the inclination of pulling block 5, then the arc convex edge 51 of the other side is squeezed into separately The annular groove 61 of side, it is easy for installation, complicated turnning and milling process is carried out without counter race 6.

In the present embodiment, flat position is sector structure at two on pulling block 5, i.e., pulling block 5 is to process on cylindrical structure The surface of revolution of the flat bit architecture that two flat positions obtain, pulling block 5 is adapted with the hole wall of seat ring 6, is play the guiding role, and pulling block 5 is made to exist When work will not run-off the straight, effectively prevent the active force run-off the straight due to 5 counter race 6 of pulling block and cylinder head caused to scrape Wound.

In the present embodiment, the diameter of arc convex edge 51 is less than the diameter of annular groove 61, and the diameter of annular groove 61 is than on pulling block 5 Arc convex edge 51 is bigger, is inserted into annular groove 61 convenient for arc convex edge 51 at the two of pulling block 5, entire tool structure design rationally, just In quickly completing to assemble by tooling, dismounting speed is improved.

In the present embodiment, the top of arc convex edge 51 is equipped with chamfering structure 53, and chamfering structure 53 is smooth flat, is convenient for Arc convex edge 51 is interior in a limited space to be smoothly inserted into annular groove 61, prevent from causing to interfere, reduce the diameter of annular groove 61 Design size and the diameter dimension for increasing arc convex edge 51 as far as possible, guarantee the forced area between arc convex edge 51 and annular groove 61 It is sufficiently large, meet force request.

In the present embodiment, limiting bracket includes supporting plate 3, and the lower section of supporting plate 3, which is equipped with, to be adapted with the top surface of cylinder head 7 Increase block 4, when preventing from upwards pulling out seat ring 6, seat ring 6 is interfered with supporting plate 3, and supporting plate 3 is supported bolt 1, supporting plate 3 Middle part be equipped with through-hole 32, through-hole 32 have guiding role, bolt 1 is supported；The head with bolt 1 is equipped with above supporting plate 3 The long washer 2 that portion mutually limits applies moderate lubrication oil in the pressure-bearing surface 11 of bolt 1 and the first contact surface 21 of long washer 2 respectively, subtracts Few friction guarantees that bolt 1 can smoothly rotate.

A kind of ring of cylinder head disassembling fixture, including the pulling block 5 that can extend into seat ring 6, pulling block 5 is equipped with and annular groove 61 Compatible arc convex edge 51 is equipped with screw hole 52 at the rotation center of pulling block 5；It further include being adapted with the top surface of cylinder head 7 Limiting bracket, limiting bracket are equipped with bolt 1 compatible with the screw hole 52 of pulling block 5.

In the present embodiment, pulling block 5 is flat bit architecture, and arc convex edge 51 is set at the two of pulling block 5 arc convex edge on flat position 51 diameter is less than the diameter of annular groove 61, and the top of arc convex edge 51 is equipped with chamfering structure 53, convenient for arc convex edge 51 limited Space in can smoothly be inserted into annular groove 61, prevent from causing to interfere, reduce the diameter design size and as far as possible of annular groove 61 The diameter dimension of arc convex edge 51 is increased, guarantees that the forced area between arc convex edge 51 and annular groove 61 is sufficiently large, meets stress It is required that.

In the present embodiment, limiting bracket includes supporting plate 3, and the lower section of supporting plate 3, which is equipped with, to be adapted with the top surface of cylinder head 7 Increase block 4, supporting plate 3 is supported bolt 1, and the middle part of supporting plate 3 is equipped with through-hole 32, and through-hole 32 has guiding role；On supporting plate 3 Side is equipped with the long washer 2 mutually limited with the head of bolt 1；And increase block 4 and be respectively placed under the supporting rib 31 of supporting plate 3, it reduces Supporting plate 3 uses material, save the cost, furthermore, it is possible to convenient for the disassembled configuration of the gap observation seat ring 6 between two supporting ribs 31 Condition.

In the present embodiment, protrusion is equipped with multiple equally distributed supporting ribs 31 around supporting plate 3, increases block 4 and bearing Muscle 31 connects；The top of long washer 2 is equipped with the first positioning surface 21, and the head lower end of bolt 1 is equipped with suitable with 21 phase of the first positioning surface The bottom end of the second positioning surface 11 answered, long washer 2 is equipped with the third positioning surface 22 adaptable with the surface of supporting plate 3, guarantees long pad 2 perpendicular positionings are enclosed, are fitted closely between bolt 1, supporting plate 3, bolt 1 is reliably oriented to and is supported, keep bolt 1 Vertically.

Above are merely preferred embodiments of the utility model, it should be pointed out that for those skilled in the art, Under the premise of not departing from the utility model structure, several modifications and improvements can also be made, it is practical new that these all will not influence this The effect and patent practicability that type is implemented.

Claims (4)

1. a kind of ring of cylinder head disassembling fixture, which is characterized in that including the pulling block (5) that can extend into the seat ring (6), institute It states pulling block (5) and is equipped with arc convex edge (51), be equipped with screw hole (52) at the rotation center of the pulling block (5)；Further include and cylinder The adaptable limiting bracket in the top surface of (7) is covered, the limiting bracket is equipped with compatible with the screw hole (52) of the pulling block (5) Bolt (1)；The limiting bracket includes supporting plate (3), and the lower section of the supporting plate (3) is equipped with to be adapted with the top surface of cylinder head (7) Increase block (4), the supporting plate (3) be equipped with through-hole (32), protrusion is equipped with multiple be uniformly distributed around the supporting plate (3) Supporting rib (31), the block (4) that increases connect with the supporting rib (31).

2. a kind of ring of cylinder head disassembling fixture according to claim 1, which is characterized in that the pulling block (5) is flat position The top of structure, the arc convex edge (51) is equipped with chamfering structure (53).

3. a kind of ring of cylinder head disassembling fixture according to claim 2, which is characterized in that set above the supporting plate (3) There is the long washer (2) mutually limited with the head of the bolt (1).

4. a kind of ring of cylinder head disassembling fixture according to claim 3, which is characterized in that the top of the long washer (2) End is equipped with the first positioning surface (21), and the head lower end of the bolt (1) is equipped with the be adapted with first positioning surface (21) Two positioning surfaces (11).