CN201955278U

CN201955278U - Fixed tool for friction test of piston ring

Info

Publication number: CN201955278U
Application number: CN2010206896068U
Authority: CN
Inventors: 成效先; 朱晓洁; 赵海存
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2010-12-30
Filing date: 2010-12-30
Publication date: 2011-08-31
Anticipated expiration: 2020-12-30

Abstract

The utility model discloses a fixed tool for the friction test of a piston ring. The fixed tool comprises a piston ring clamp plate, wherein the external surface of the piston ring clamp plate is provided with a sink slot corresponding to the piston ring in shape and a pressing sheet screwed with a fixed piston ring, and the piston ring clamp plate is also provided with a mounting hole; the piston ring clamp plate comprises an upper clamp plate, a piston ring mounting plate and a lower clamp plate which are screwed together, a fixed block is fixedly connected on the upper clamp plate or the lower clamp plate, the mounting hole is arranged on the fixed block, and the sink slot is arranged on the external surface of the piston ring mounting plate. The fixed tool provided by the utility model can ensure the linear contact between the piston ring and a cylinder liner assembly, has a simple structure, can be used for quickly clamping the piston ring on a testing machine, ensures the consistency of test results, and is beneficial to the analysis of the test results and the judgment of the wear condition of the piston ring and the cylinder liner.

Description

Piston ring friction test fixing tool

Technical field

The utility model relates to a kind of piston ring friction test fixing tool.

Background technology

Utilizing the SRV4 frictional testing machine that piston ring-cylinder sleeve is carried out in the friction test process, need to use the piston ring fixing tool that piston ring is fixed, the existing fixed frock comprises, following strap, when testing, the part piston ring is placed in the middle of two clamping plate, clamping plate are fixed on this testing machine, this frock is difficult to guarantee that the piston ring radius does not change, can not guarantee that piston ring and cylinder sleeve assembly linearity contacts, thereby there is a friction test shortcoming of consistance difference as a result, cause the inaccurate phenomenon of test result analysis, be difficult to accurately judge piston ring-barrel wear state.

The utility model content

The technical problems to be solved in the utility model provides a kind of piston ring friction test fixing tool that can guarantee that piston ring and cylinder sleeve assembly linearity contact.

For solving the problems of the technologies described above, piston ring friction test with following design feature fixing tool is provided: it comprises the piston ring clamping plate, the outside surface of piston ring clamping plate is provided with the deep gouge corresponding with the piston ring shape and is bolted with the compressing tablet of fixed piston ring, also is provided with mounting hole on the piston ring clamping plate.

Described piston ring clamping plate comprise train wheel bridge, piston ring installing plate and the lower plate that is screwed onto together, be connected with fixed block on train wheel bridge or the lower plate, described mounting hole is arranged on the fixed block, described deep gouge is arranged on the outside surface of piston ring installing plate, and the upper/lower terminal of described compressing tablet is screwed onto respectively on the upper and lower clamping plate.

After adopting said structure, piston ring is placed in the deep gouge, by mounting hole these piston ring clamping plate are installed on the testing machine, because deep gouge is corresponding with the piston ring shape, and compressing tablet has guaranteed that piston ring can play, thereby the radius of piston ring no longer changes, and guaranteed that piston ring contacts with the linearity of cylinder sleeve assembly.The utility model is simple in structure, can finish the clamping of piston ring on testing machine fast, has guaranteed the consistance of test findings, helps the state of wear of analytical test result and judgement piston ring-cylinder sleeve.

When testing for the piston ring of different model, the piston ring installing plate that only needs to change different model gets final product, thereby makes the utility model be applicable to the piston ring of different model size; Upper and lower clamping plate can play the effect of clamping to the piston ring installing plate.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is a structural representation of the present utility model;

The sectional view of Fig. 2 for analysing and observe along the A-A line among Fig. 1;

The sectional view of Fig. 3 for analysing and observe along the B-B line among Fig. 1;

The sectional view of Fig. 4 for analysing and observe along the C-C line among Fig. 1;

Fig. 5 is the synoptic diagram of the utility model user mode.

Embodiment

Piston ring friction test fixing tool as shown in Figure 1, it comprises and is semiorbicular piston ring clamping plate 1, piston ring clamping plate 1 comprise the train wheel bridge 11 that is screwed onto together, piston ring installing plate 12 and lower plate 13, be connected with fixed block 14 on train wheel bridge 11 or the lower plate 13, in conjunction with Fig. 1 and shown in Figure 3, fixed block 14 fixes as one with lower plate 13 in the present embodiment, fixed block 14 be provided with can be equipped with the testing machine worktable mounting hole 6, in conjunction with Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, the outside surface of piston ring installing plate 12 is provided with the deep gouge corresponding with the piston ring shape 2, on, be bolted with the compressing tablet 3 of fixed piston ring on the lower plate, the two ends up and down that are compressing tablet 3 are screwed onto respectively on the lower plate, and compressing tablet 3 can be symmetrical arranged two.

As shown in Figure 5, be inserted in the deep gouge 2 cutting out good part piston ring 7, train wheel bridge 11, piston ring 7 installing plates 12 and lower plate 13 are linked together by bolt 8, again compressing tablet 3 is screwed onto on the upper and lower clamping plate, piston ring 7 can be by firm being fixed on this fixing tool, to fixed block 14 imposed load F, the outside surface of piston ring 7 can contact with cylinder sleeve assembly 9 linearities on the testing machine, thereby tests.

Claims

1. piston ring friction test fixing tool, it is characterized in that comprising piston ring clamping plate (1), the outside surface of piston ring clamping plate (1) is provided with the deep gouge corresponding with the piston ring shape (2) and is bolted with the compressing tablet (3) of fixed piston ring, also is provided with mounting hole (6) on the piston ring clamping plate (1).

2. piston ring friction test fixing tool according to claim 1, it is characterized in that: described piston ring clamping plate (1) comprise train wheel bridge (11), piston ring installing plate (12) and the lower plate (13) that is screwed onto together, be connected with fixed block (14) on train wheel bridge (11) or the lower plate (13), described mounting hole (6) is arranged on the fixed block (14), described deep gouge (2) is arranged on the outside surface of piston ring installing plate (12), and the upper/lower terminal of described compressing tablet (3) is screwed onto respectively on the upper and lower clamping plate.