Quick change mechanism for model change of engine cylinder cover

Abstract

The utility model belongs to the technical field of engines, and particularly discloses a quick change mechanism for model change of an engine cylinder cover. The quick-change mechanism mainly comprises a base, a rotating seat and a positioning shaft, a first limiting body is arranged at the top end of the base, and a first groove and a spring plunger limiting groove are formed in the first limiting body; a jackscrew pin shaft and a spring plunger are arranged on the rotating seat; a second limiting body is arranged at the bottom end of the positioning shaft, a second groove is formed in the second limiting body, and a limiting pin shaft is arranged on the second limiting body. According to the quick-change mechanism, the positioning shaft and the base are quickly fixed and disassembled by rotating the rotating seat; when the rotating base is rotated clockwise, the spring plunger is clamped into the spring plunger limiting groove, the jackscrew pin shaft sequentially penetrates through the first groove and the second groove, the positioning shaft can be fixed in the base, when the rotating base is rotated anticlockwise to the initial assembling position, the positioning shaft can be smoothly pulled out of the base, and the fixing and disassembling efficiency of the positioning shaft is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to a quick-changing mechanism for changing the type of an engine cylinder cover. Background Art

[0002] The cylinder head, a crucial component of the engine, determines its proper function. During the manufacturing process, the cylinder head requires assembly and positioning using locating shafts. However, due to varying cylinder head specifications, the locating shafts must be moved and adjusted when changing cylinder heads. This time-consuming removal and installation of these shafts compromises cylinder head changeover efficiency and does not meet modern industrial production requirements.

[0003] Therefore, the utility model proposes a quick-change mechanism for changing the type of an engine cylinder head. Utility Model Content

[0004] The purpose of the utility model is to provide a quick-change mechanism for changing the type of an engine cylinder head, wherein the quick-change mechanism can improve the efficiency of changing the type of the engine cylinder head.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] A quick-change mechanism for changing the type of an engine cylinder head comprises a base, a rotating seat and a positioning shaft;

[0007] A first limiting body with a hollow cylindrical outer contour is provided at the top of the base, and a first groove and a spring plunger limiting groove are provided on the side wall of the first limiting body;

[0008] The outer contour of the rotating seat is annular, and a top screw pin and a spring plunger are provided on the rotating seat; the rotating seat is arranged on the top of the base, and the first limiting body is located at the central opening of the rotating seat;

[0009] The positioning shaft is arranged vertically, and a second limiting body is provided at the bottom end of the positioning shaft. A second groove is opened on the side wall of the second limiting body. A limiting pin is provided on the second limiting body, and the second limiting body is arranged at the central opening of the first limiting body.

[0010] Preferably, a retaining spring is provided on the top of the rotating seat, and the retaining spring is located between the rotating seat and the positioning shaft.

[0011] Preferably, the first groove and the second groove are both L-shaped.

[0012] Preferably, longitudinally arranged stripes are provided on the circumference of the rotating seat.

[0013] Preferably, the inner diameter of the first limiting body is greater than the outer diameter of the second limiting body.

[0014] Preferably, the top screw pin, spring plunger and limit pin are all arranged horizontally.

[0015] Preferably, the bottom of the base is connected to the tray, and the top of the positioning shaft is connected to the cylinder cover.

[0016] Preferably, a base and a rotating seat are provided on both sides of the top of the tray.

[0017] The beneficial effects of the utility model are as follows:

[0018] The utility model proposes a quick-change mechanism for changing the shape of an engine cylinder head. The quick-change mechanism realizes rapid fixation and disassembly between a positioning shaft and a base by rotating a rotating seat. When the rotating seat is rotated clockwise, a spring plunger is engaged with a spring plunger limiting groove, and a push pin shaft passes through a first groove of a first limiting body and a second groove of a second limiting body in sequence, so that the positioning shaft can be fixed in the base. When the rotating seat is rotated counterclockwise, the push pin shaft moves to an initial assembly position, and the positioning shaft can be smoothly pulled out of the base, thereby improving the efficiency of fixing and disassembling the positioning shaft, facilitating position adjustment of the positioning shaft, and further improving the efficiency of changing the shape of the cylinder head. The quick-change mechanism of the utility model has a simple structure and a compact shape, which is convenient for later maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of the quick-change mechanism of the present utility model;

[0020] Figure 2 It is a longitudinal sectional view of the quick-change mechanism of the present utility model;

[0021] Figure 3 The structure explosion of the quick change mechanism of the utility model Figure 1 ;

[0022] Figure 4 The structure explosion of the quick change mechanism of the utility model Figure 2 ;

[0023] Figure 5 The structure explosion of the quick change mechanism of the utility model Figure 3 ;

[0024] Figure 6 It is a horizontal cross-sectional view of the quick-change mechanism of the present utility model;

[0025] Figure 7 for Figure 6 A magnified view of point A;

[0026] Figure 8 Schematic diagram of the assembly of the quick-change mechanism, tray and cylinder cover of the utility model Figure 1 ;

[0027] Figure 9 Schematic diagram of the assembly of the quick-change mechanism, tray and cylinder cover of the utility model Figure 2 ;

[0028] Among them, a-tray, b-cylinder cover, c-quick change mechanism;

[0029] 1-base, 11-first limiting body, 111-first groove, 12-spring plunger limiting groove;

[0030] 2-rotating seat, 21-spring plunger, 22-jackscrew pin;

[0031] 3-positioning shaft, 31-second limiting body, 311-second groove, 32-limiting pin;

[0032] 4-Circlip. DETAILED DESCRIPTION

[0033] 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 described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0035] Combine Figures 1 to 9 As shown, the utility model proposes a quick-change mechanism for changing the engine cylinder head. By adding the quick-change mechanism, the changing efficiency of the engine cylinder head can be improved. The quick-change mechanism mainly includes structural components such as a base 1, a rotating seat 2 and a positioning shaft 3.

[0036] Combine Figure 8 and Figure 9 As shown, the base 1 is set on the tray a, and the bottom end of the base 1 is connected to the top of the tray a. Figures 3 to 5 As shown, the top of the base 1 is provided with a first limiting body 11 with a hollow cylindrical outer contour, and the side wall of the first limiting body 11 is provided with a first groove 111, and the contour structure of the first groove 111 is L-shaped. Figure 6 and Figure 7 As shown, a spring plunger limiting groove 12 is further formed on the side wall of the first limiting body 11 , and the spring plunger limiting groove 12 is used to limit the spring plunger 21 .

[0037] Combine Figures 3 to 5 As shown, the outer contour of the rotating seat 2 is annular, and the rotating seat 2 is provided with a horizontally arranged spring plunger 21 and a push pin 22, which are used for limiting and fixing. The rotating seat 2 is set on the top of the base 1. When assembling, the first limiting body 11 is located at the central opening of the rotating seat 2. Figure 1 As shown, longitudinal stripes are provided on the circumference of the rotating seat 2 to increase the friction between the rotating seat 2 and the rotating seat 2, making it easier for the staff to rotate.

[0038] Combine Figures 3 to 5 As shown, the positioning shaft 3 is vertically arranged, and the top end of the positioning shaft 3 is connected to the cylinder head b. The bottom end of the positioning shaft 3 is provided with a second limiting body 31, and the side wall of the second limiting body 31 is provided with a second groove 311, and the outline shape of the second groove 311 is L-shaped. A limiting pin 32 is provided on the second limiting body 31, and the limiting pin 32 is horizontally arranged. The limiting pin 32 can be used to limit the position where the positioning shaft 3 is inserted. The second limiting body 31 is set at the center opening of the first limiting body 11, combined with Figure 4 and Figure 5 As shown, the inner diameter of the first limiting body 11 is larger than the outer diameter of the second limiting body 31 , which facilitates the insertion of the positioning shaft 3 into the base 1 .

[0039] Combine Figure 3 As shown, a retaining spring 4 is provided on the top of the rotating seat 2, and the retaining spring 4 is located between the rotating seat 2 and the positioning shaft 3. The retaining spring 4 is used to limit the rotating seat 2 to prevent the rotating seat 2 from axial movement.

[0040] Combine Figure 8 and Figure 9 As shown, a base 1 and a rotating base 2 are provided on both sides of the top of the tray a, wherein two bases 1 and two rotating bases 2 are provided on each side. When the engine cylinder head b is replaced, the positioning shaft 3 is inserted into different bases 1 to flexibly adapt to cylinder heads b of different specifications and models.

[0041] The assembly process of the utility model quick change mechanism is as follows:

[0042] First, insert the limiting pin 32 into the positioning shaft 3, and at the same time insert the spring plunger 21 and the top screw pin 22 into the rotating seat 2; align the top screw pin 22 provided on the rotating seat 2 with the first groove 111 of the first limiting body 11, and assemble the rotating seat 2 to the top of the base 1, so that the first limiting body 11 of the base 1 is located in the center of the rotating seat 2; place the retaining ring 4 on the top of the rotating seat 2 to limit the rotating seat 2; vertically insert the positioning shaft 3 into the center of the base 1, align the limiting pin 32 with the first groove 111 on the first limiting body 11, and the opening on the second limiting body 31 The second groove 311 is aligned with the top screw pin 22, and the second limiting body 31 is finally inserted into the center of the first limiting body 11; the rotating seat 2 is rotated clockwise, and the top screw pin 22 moves along the inner wall of the first groove 111 and the second groove 311 until the spring plunger 21 enters the spring plunger limiting groove 12. At this time, the base 1, the rotating seat 2 and the positioning shaft 3 are assembled and fixed; when the rotating seat 2 is rotated counterclockwise so that the top screw pin 22 moves to the initial position, the positioning shaft 3 can be smoothly pulled out and disassembled, and the positioning shaft 3 is inserted into another base to adapt to cylinder heads b of different specifications and models.

[0043] Combine Figures 1 to 9 As shown, the utility model proposes a quick-change mechanism for changing the engine cylinder head. The quick-change mechanism realizes the rapid fixation and removal between the positioning shaft 3 and the base 1 by rotating the rotating seat 2. When the rotating seat 2 is rotated clockwise, the spring plunger 21 engages with the spring plunger limiting groove 12, and the push pin 22 passes through the first groove 111 of the first limiting body 11 and the second groove 311 of the second limiting body 31 in sequence, which can fix the positioning shaft 3 in the base 1. When the rotating seat 2 is rotated counterclockwise, the push pin 22 moves to the initial assembly position, and the positioning shaft 3 can be smoothly pulled out from the base 1, thereby improving the efficiency of fixing and removing the positioning shaft 3, facilitating the movement of the positioning shaft 3, and also improving the efficiency of changing the cylinder head b. The utility model quick-change mechanism has a simple structure and a compact shape, which is convenient for later maintenance and replacement.

[0044] Of course, the above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention and should be protected by the present invention.

Claims

1. A quick-change mechanism for changing the type of engine cylinder head, characterized in that: Including a base, a rotating seat and a positioning shaft; A first limiting body with a hollow cylindrical outer contour is provided at the top of the base, and a first groove and a spring plunger limiting groove are provided on the side wall of the first limiting body; The outer contour of the rotating seat is annular, and a top screw pin and a spring plunger are provided on the rotating seat; the rotating seat is arranged on the top of the base, and the first limiting body is located at the central opening of the rotating seat; The positioning shaft is arranged vertically, and a second limiting body is provided at the bottom end of the positioning shaft. A second groove is opened on the side wall of the second limiting body. A limiting pin is provided on the second limiting body, and the second limiting body is arranged at the central opening of the first limiting body.

2. The quick-change mechanism for changing the engine cylinder head according to claim 1, characterized in that: A clamping spring is provided on the top of the rotating seat, and the clamping spring is located between the rotating seat and the positioning shaft.

3. The quick-change mechanism for changing the engine cylinder head according to claim 1, characterized in that: The first groove and the second groove are both L-shaped.

4. The quick-change mechanism for changing the engine cylinder head according to claim 1, characterized in that: The circumference of the rotating seat is provided with longitudinally arranged stripes.

5. The quick-change mechanism for changing the engine cylinder head according to claim 1, characterized in that: The inner diameter of the first limiting body is greater than the outer diameter of the second limiting body.

6. The quick-change mechanism for changing the engine cylinder head according to claim 1, characterized in that: The top screw pin shaft, the spring plunger and the limit pin shaft are all arranged horizontally.

7. The quick-change mechanism for changing the engine cylinder head according to claim 1, characterized in that: The bottom of the base is connected to the tray, and the top of the positioning shaft is connected to the cylinder cover.

8. The quick-change mechanism for changing the engine cylinder head according to claim 7, characterized in that: A base and a rotating seat are provided on both sides of the top of the tray.

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