Diesel engine fuel injection pump governor control handle structure

Abstract

The utility model discloses a diesel engine fuel injection pump speed regulator control handle structure, which relates to the field of diesel engine speed regulation structures, and comprises a control handle body arranged between a control shaft and a pull rod, the control handle body comprises a connecting part, the top of the connecting part is connected with the pull rod, a U-shaped regulating part is arranged at the bottom of the connecting part, and a control handle folding edge is arranged on the regulating part. The control handle folding edge and the bottom of the connecting part are arranged in parallel, a connecting groove is formed among the bottom of the connecting part, the adjusting part and the control handle folding edge, a spline is arranged in the connecting groove and fixedly connected with the control shaft, and an adjusting part is arranged on the adjusting part; according to the diesel engine fuel injection pump speed regulator control handle structure, when the contact portion of the opening and the spline is abraded, the size of the connecting groove can be adjusted through the adjusting piece, so that the control handle body is fixedly connected with the spline, connection failure caused by abrasion of the contact portion of the opening and the spline is avoided, and the adjusting effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of diesel engine speed regulating structures, in particular to a diesel engine fuel injection pump speed regulating device operating handle structure. Background Art

[0002] In the control system of the diesel engine fuel injection pump governor, the joystick, as a key component connecting the joystick shaft and the pull rod, plays a vital role. Through the joystick, the operator can effectively transfer the force of the pull rod to the joystick, thereby achieving precise control of the diesel engine fuel injection pump governor.

[0003] The existing connection between the joystick and the joystick shaft mainly adopts a spline connection. An opening is provided at the bottom of the joystick. The size of the opening is adjusted by adjusting the nut to adjust the connection strength between the joystick and the spline. However, since the joystick is usually provided with an opening at the bottom of a solid body, the overall connectivity of the joystick is relatively strong, and the adjusting nut has limited effect on the opening. During long-term use, the contact part between the opening and the spline is prone to wear, resulting in connection failure, which in turn affects the adjustment effect of the speed regulator. Utility Model Content

[0004] The utility model aims to provide a diesel engine fuel injection pump governor control handle structure. When the connecting groove and the spline contact part are worn, the size of the connecting groove can be adjusted by an adjusting member, thereby achieving a fixed connection between the control handle body and the spline, avoiding connection failure caused by wear of the connecting groove and the spline contact part, and ensuring the adjustment effect.

[0005] The above-mentioned optimized structure of the utility model is realized through the following technical scheme: a diesel engine fuel injection pump governor control handle structure, including a control handle body, which is arranged between the control shaft and the pull rod, the control handle body includes a connecting part, the top of the connecting part is connected to the pull rod, the bottom of the connecting part is provided with a U-shaped adjustment part, the adjustment part is provided with a control handle folding edge, the control handle folding edge is arranged parallel to the bottom of the connecting part, a connecting groove is provided between the bottom of the connecting part, the adjustment part and the control handle folding edge, a spline is provided in the connecting groove, the spline is fixedly connected to the control shaft, and an adjustment piece is provided on the adjustment part.

[0006] In some embodiments, the connecting groove includes two circular holes, which are respectively arranged at the bottom of the connecting part and on the folded edge of the operating handle, the spline is arranged between the two circular holes, and an opening with a U-shaped cross-section is arranged in the middle of the adjustment part, and the opening is connected between the two circular holes.

[0007] In some embodiments, the adjusting member includes a bolt, the bolt passes through the adjusting portion, a locking nut is provided on the bolt, and the bolt and the locking nut are respectively fitted with two end surfaces of the adjusting portion.

[0008] In some embodiments, a limiting hole is provided at one end of the adjustment portion away from the locking nut, and the bolt is a semi-circular head tenon bolt.

[0009] In some embodiments, the locking nut is a hexagonal flange-bearing nut with teeth.

[0010] In some embodiments, the joystick body is integrally stamped.

[0011] In some embodiments, a mounting hole is provided on the top of the connecting portion, and the pull rod passes through the mounting hole.

[0012] In some embodiments, the connecting portion is Z-shaped.

[0013] In summary, the utility model has the following beneficial effects:

[0014] The diesel engine fuel injection pump governor control handle structure configures the control handle body as a connecting portion, an adjusting portion and a control handle folding edge, and an adjusting piece is provided on the adjusting portion to realize the adjustment of the size of the connecting groove. When the contact portion between the control handle body and the spline is worn, a fixed connection between the control handle body and the spline can be realized, thereby avoiding connection failure caused by wear of the contact portion between the control handle body and the spline and ensuring the adjustment effect. The control handle body is integrally stamped and formed, which simplifies the manufacturing process and improves production efficiency. At the same time, it also enhances the overall strength and stability of the mechanism and can effectively extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the front view of the utility model connected with the operating shaft and the pull rod;

[0016] Figure 2 It is a side view of the utility model connected with the operating shaft and the pull rod.

[0017] In the figure: 1. operating handle body; 11. connecting part; 12. adjusting part; 13. folding edge of operating handle; 2. operating shaft; 3. pull rod; 4. spline; 5. adjusting piece; 51. bolt; 52. locking nut; 6. connecting groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] refer to Figure 1-2 A diesel engine fuel injection pump governor control handle structure includes a control handle body 1, which is arranged between a control shaft 2 and a pull rod 3 and is used to connect the control shaft 2 and the pull rod 3.

[0020] The control handle body 1 includes a connecting portion 11, an adjusting portion 12 and a control handle folded edge 13, which can reduce the occupied space, improve compactness, reduce the overall connection strength at the opening, improve adjustability, avoid connection failure caused by wear of the contact part between the control handle body 1 and the spline 4, and ensure the adjustment effect of the speed regulator.

[0021] A mounting hole is provided at the top of the connecting part 11, and the pull rod 3 passes through the mounting hole to realize the connection between the connecting part 11 and the pull rod 3; a U-shaped adjusting part 12 is provided at the bottom of the connecting part 11, and a control handle folded edge 13 is provided on the adjusting part 12, and the control handle folded edge 13 is arranged parallel to the bottom of the connecting part 11.

[0022] A connecting groove 6 is provided between the bottom of the connecting portion 11, the adjusting portion 12 and the folded edge 13 of the operating handle. The connecting groove 6 includes two circular holes, which are respectively provided at the bottom of the connecting portion 11 and on the folded edge 13 of the operating handle. A spline 4 is provided between the two circular holes. The spline 4 is fixedly connected to the operating shaft 2. The spline 4 is clamped and fixed by the connecting portion 11 and the folded edge 13 of the operating handle, thereby realizing a fixed connection between the operating handle body 1 and the spline 4, and further realizing the connection between the pull rod 3 and the operating shaft 2.

[0023] An opening with a U-shaped cross section is provided in the middle of the adjustment part 12, and an opening is connected between the two circular holes. An adjustment member 5 is provided on the adjustment part 12, and the adjustment member 5 includes a bolt 51 and a locking nut 52. The bolt 51 and the locking nut 52 are threadedly matched. The bolt 51 passes through the adjustment part 12, and the two end surfaces of the adjustment part 12 are respectively fitted with the bolt 51 and the locking nut 52. Through the threaded match of the bolt 51 and the locking nut 52, the two end surfaces of the adjustment part 12 are pressed, thereby adjusting the size of the connection groove, adjusting the clamping force of the connection part 11 and the operating handle fold 13 on the spline 4, and then adjusting the connection strength between the spline 4 and the operating handle body 1, avoiding the connection failure caused by the wear of the contact part between the operating handle body 1 and the spline 4, and ensuring the adjustment effect.

[0024] In some embodiments, a limiting hole is provided at one end of the adjusting portion 12 away from the locking nut 52. The bolt 51 may be a semi-circular head tenon bolt, which can be inserted into the limiting hole through the tenon of the bolt 51 to enhance the connection strength between the adjusting member 5 and the adjusting portion 12. The locking nut 52 may be a hexagonal flange-faced toothed nut, which can increase the contact area between the locking nut 52 and the adjusting portion 12, further enhance the connection strength between the adjusting member 5 and the adjusting portion 12, and effectively prevent the bolt 51 from loosening or falling off.

[0025] In some embodiments, the operating handle body 1 is stamped in one piece, with a compact structure and high strength, which can meet the needs of the diesel engine under various working conditions. At the same time, it simplifies the manufacturing process, improves production efficiency, enhances the overall strength and stability of the mechanism, can effectively extend the service life, and avoid the problems of high energy consumption and environmental pollution caused by the use of casting technology.

[0026] In some embodiments, the connection portion 11 may be Z-shaped, which can improve the stability of the control handle body 1 when subjected to force and enhance durability.

[0027] The specific working principle is as follows:

[0028] The diesel engine fuel injection pump governor control handle structure of the utility model realizes the control of the fuel injection pump governor when working through the connection between the pull rod 3 and the control shaft 2. When the contact part between the control handle body 1 and the spline 4 is worn and the control handle body 1 and the spline 4 are loosened, it is only necessary to rotate the locking nut 52 to make the locking nut 52 close to the bolt 51 to reduce the size of the opening. The reduction of the opening will drive the circular hole to shrink, so that the connection part 11 and the control handle fold 13 are closer to the spline 4, and the clamping force of the connection part 11 and the control handle fold 13 on the spline 4 is enhanced, thereby eliminating the wear of the contact part between the control handle body 1 and the spline 4 during long-term use and the looseness between the control handle body 1 and the spline 4, thereby ensuring the adjustment effect of the governor.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A diesel engine fuel injection pump governor control handle structure, comprising a control handle body (1), arranged between a control shaft (2) and a pull rod (3), characterized in that: The control handle body (1) comprises a connecting portion (11), the top of the connecting portion (11) is connected to the pull rod (3), the bottom of the connecting portion (11) is provided with a U-shaped adjusting portion (12), the adjusting portion (12) is provided with a control handle folding edge (13), the control handle folding edge (13) is arranged parallel to the bottom of the connecting portion (11), a connecting groove (6) is provided between the bottom of the connecting portion (11), the adjusting portion (12) and the control handle folding edge (13), a spline (4) is provided in the connecting groove (6), the spline (4) is fixedly connected to the control shaft (2), and an adjusting member (5) is provided on the adjusting portion (12).

2. A diesel engine fuel injection pump speed governor control handle structure according to claim 1, characterized in that: The connecting groove (6) comprises two circular holes, the two circular holes are respectively arranged at the bottom of the connecting portion (11) and on the folded edge (13) of the operating handle, the spline (4) is arranged between the two circular holes, the middle part of the adjusting portion (12) is provided with an opening with a U-shaped cross section, and the opening is connected between the two circular holes.

3. A diesel engine fuel injection pump speed governor control handle structure according to claim 1, characterized in that: The adjusting member (5) comprises a bolt (51), the bolt (51) passing through the adjusting portion (12), a locking nut (52) being provided on the bolt (51), and the bolt (51) and the locking nut (52) respectively fitting against two end surfaces of the adjusting portion (12).

4. A diesel engine fuel injection pump speed governor control handle structure according to claim 3, characterized in that: A limiting hole is provided at one end of the adjusting portion (12) away from the locking nut (52), and the bolt (51) is a semicircular head bolt with a tenon.

5. A diesel engine fuel injection pump governor control handle structure according to claim 3, characterized in that: The locking nut (52) is a hexagonal flange-face bearing nut with teeth.

6. A diesel engine fuel injection pump governor control handle structure according to claim 1, characterized in that: The operating handle body (1) is integrally stamped.

7. A diesel engine fuel injection pump governor control handle structure according to claim 1, characterized in that: A mounting hole is provided on the top of the connecting portion (11), and the pull rod (3) passes through the mounting hole.

8. The diesel engine fuel injection pump speed governor control handle structure according to claim 1, characterized in that: The connecting portion (11) is Z-shaped.

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