Hydraulic throttle valve of high-pressure common-rail oil injector

Abstract

The utility model relates to a hydraulic throttle valve of a high-pressure common-rail oil injector, which belongs to the technical field of hydraulic throttle valves and comprises a hydraulic throttle valve body and a mounting frame, and an adjusting and maintaining component is arranged on the inner side of the mounting frame. The adjusting and maintaining assembly comprises a sliding rod fixedly connected to the inner side of the mounting frame, a mounting platform is slidably connected to the outer surface of the sliding rod, a positioning plate is fixedly connected to the outer surface of the hydraulic throttle valve body, a buckle is hinged to the top of the mounting platform, and a fixing block is fixedly mounted at the top of the positioning plate. Mounting holes are formed in the periphery of the top of the mounting frame. According to the hydraulic throttle valve of the high-pressure common-rail oil injector, the adjusting and maintaining assembly is arranged, so that the functions of position adjusting and dismounting and maintaining of the hydraulic throttle valve body are achieved, the hydraulic throttle valve is suitable for engines with different requirements, the applicability of the hydraulic throttle valve is good, meanwhile, dismounting and dismounting are convenient, the hydraulic throttle valve can be taken down for regular maintenance, and convenience is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic throttle valve technical field, concretely is a kind of hydraulic throttle valve of high-pressure common rail oil atomizer. BACKGROUND

[0002] High-pressure common rail oil atomizer is the key component in high-pressure common rail system, and is widely used in various diesel engines, including car, light commercial vehicle, heavy truck, locomotive and marine engine, etc. Hydraulic throttle valve is a valve that controls fluid flow by changing the throttle section or length. It is usually connected in parallel with a one-way valve to form a one-way throttle valve, or cooperates with an overflow valve in a quantitative pump hydraulic system to form three throttle speed regulation systems, namely oil inlet throttle speed regulation system, oil return throttle speed regulation system and bypass throttle speed regulation system.

[0003] In high-pressure common rail oil atomizer, hydraulic throttle valve is needed to control fluid flow. Although the existing hydraulic throttle valve has good stability.

[0004] However, the existing hydraulic throttle valve cannot be adjusted in position, and is not convenient to disassemble and maintain, which makes it difficult to adjust the oil injection direction of high-pressure common rail oil atomizer to adapt to different requirements of engines, resulting in poor applicability and inability to meet the use requirements. Therefore, a hydraulic throttle valve for high-pressure common rail oil atomizer is proposed to solve the above problems. SUMMARY

[0005] In view of the shortcomings of the prior art, the utility model provides a hydraulic throttle valve for high-pressure common rail oil atomizer, which solves the problem that the existing hydraulic throttle valve cannot be adjusted in position and is not convenient to disassemble and maintain, which makes it difficult to adjust the oil injection direction of high-pressure common rail oil atomizer to adapt to different requirements of engines, resulting in poor applicability and inability to meet the use requirements.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a hydraulic throttle valve for high-pressure common rail oil atomizer, comprising a hydraulic throttle valve body and a mounting frame, the inner side of the mounting frame is provided with an adjusting and maintaining assembly;

[0007] The adjusting and maintaining assembly comprises a sliding rod fixedly connected to the inner side of the mounting frame, the outer surface of the sliding rod is slidingly connected with a mounting platform, the top of the mounting platform is provided with a positioning opening, the outer surface of the hydraulic throttle valve body is fixedly connected with a positioning plate, the top of the mounting platform is hingedly installed with a buckle, the top of the positioning plate is fixedly installed with a fixed block, and the mounting frame top is provided with mounting holes around.

[0008] Further, the positioning opening is circular in shape, and the bottom end of the hydraulic throttle valve body penetrates the positioning opening and extends to the outside.

[0009] Further, the number of buckles and fixed blocks is four, and both are distributed around the hydraulic throttle valve body.

[0010] Further, the size of the buckle and the fixed block is matched, and the buckle and the fixed block are connected.

[0011] Further, the hydraulic throttle valve body top is inserted with a positioning pin for strengthening the overall structural stability.

[0012] Further, the outer surface of the hydraulic throttle valve body is bonded with a graphite heat conduction gasket for heat conduction.

[0013] Further, the outer side of the hydraulic throttle valve body is fixedly installed with a small wind cover, and the inside of the small wind cover is fixedly connected with a cooling fan and a cooling fin.

[0014] Compared with the prior art, the hydraulic throttle valve of the high-pressure common rail oil injector has the following beneficial effects:

[0015] The hydraulic throttle valve of the high-pressure common rail oil injector, by setting the adjusting and maintaining assembly, realizes the position adjustment and disassembly and maintenance functions of the hydraulic throttle valve body, can slide the hydraulic throttle valve body to the inside of the mounting frame, so that the staff can indirectly adjust the oil injection direction of the high-pressure common rail oil injector by sliding, to be suitable for different requirements of the engine, so that the applicability is better, and at the same time, the staff can remove the buckle for limiting the hydraulic throttle valve body from the outer surface of the fixed block, so as to release the limitation of the hydraulic throttle valve body, and then facilitate disassembly and assembly for regular maintenance, which is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a sectional view of the utility model structure;

[0017] Figure 2 It is the utility model Figure 1 The enlarged structure schematic view of A shown in the figure;

[0018] Figure 3 It is a structure plan view of the utility model;

[0019] Figure 4 It is a three-dimensional view of the mounting frame of the utility model structure.

[0020] In the figure: 1 hydraulic throttle valve body, 2 mounting frame, 3 sliding rod, 4 mounting platform, 5 positioning port, 6 positioning plate, 7 buckle, 8 fixed block, 9 mounting hole, 10 positioning pin, 11 graphite heat conduction gasket, 12 small wind cover, 13 cooling fan, 14 cooling fin. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Embodiment one:

[0023] Please refer to Figure 1 , Figure 3 and Figure 4 , the hydraulic throttle valve of a high-pressure common rail fuel injector in the embodiment comprises a hydraulic throttle valve body 1 and a mounting frame 2, and the inner side of the mounting frame 2 is provided with an adjusting and maintaining assembly;

[0024] The adjusting and maintaining assembly comprises a sliding rod 3 fixedly connected to the inner side of the mounting frame 2, the outer surface of the sliding rod 3 is slidably connected with a mounting platform 4, the top of the mounting platform 4 is provided with a positioning opening 5, the outer surface of the hydraulic throttle valve body 1 is fixedly connected with a positioning plate 6, the top of the mounting platform 4 is hingedly installed with buckles 7, the top of the positioning plate 6 is fixedly installed with fixing blocks 8, and mounting holes 9 are formed around the top of the mounting frame 2. In use, the staff first needs to cooperate the mounting holes 9 and threaded nuts to fix and install the mounting frame 2 to the engine equipment, then, the hydraulic throttle valve body 1 is placed into the mounting platform 4, so that the bottom end of the hydraulic throttle valve body 1 penetrates through the positioning opening 5 and extends to the outside thereof, the mounting platform 4 lifts the positioning plate 6, that is, the hydraulic throttle valve body 1 can be simply limited, then, the four buckles 7 are clamped on the four fixing blocks 8, that is, the hydraulic throttle valve body 1 can be completely limited to the top of the mounting platform 4 by clamping and fixing, at this time, since the sliding rod 3 is slidably connected with the mounting platform 4, the staff can indirectly adjust the oil injection direction of the high-pressure common rail fuel injector by sliding, so as to be suitable for different requirements of the engine, and the applicability is better.

[0025] Meanwhile, the staff can remove the buckles 7 for limiting the hydraulic throttle valve body 1 from the outer surface of the fixing block 8, so that the limitation of the hydraulic throttle valve body 1 can be released, and then the disassembly and assembly are facilitated, so that the periodical maintenance can be carried out, which is more convenient.

[0026] It should be noted that the shape of the positioning opening 5 is circular, and the bottom end of the hydraulic throttle valve body 1 penetrates through the positioning opening 5 and extends to the outside thereof.

[0027] It should be understood that the number of the buckles 7 and the fixing blocks 8 is four, and both of them are oppositely distributed around the hydraulic throttle valve body 1, the size of the buckle 7 is matched with that of the fixing block 8, and the buckle 7 is clamped with the fixing block 8.

[0028] Embodiment two:

[0029] Please refer to Figure 1 and Figure 2 On the basis of embodiment one, the hydraulic throttle valve body 1 is inserted with a positioning pin 10 at the top for strengthening the overall structural stability.

[0030] At the same time, the outer surface of the hydraulic throttle valve body 1 is bonded with a graphite heat conduction gasket 11 for heat conduction.

[0031] In addition, a small wind shield 12 is fixedly installed on the outer side of the hydraulic throttle valve body 1, and a cooling fan 13 and a cooling fin 14 are fixedly connected inside the small wind shield 12. Through the cooperation of the small wind shield 12, the cooling fan 13 and the cooling fin 14, the effect of air cooling and heat dissipation for the outer side of the hydraulic throttle valve body 1 is achieved.

[0032] The working principle of the above embodiment is:

[0033] In use, the staff first needs to fix and install the installation frame 2 to the engine equipment through the cooperation of the installation hole 9 and the threaded nut, then put the hydraulic throttle valve body 1 into the installation platform 4, so that the bottom end of the hydraulic throttle valve body 1 penetrates through the positioning port 5 and extends to the outside, the installation platform 4 lifts the positioning plate 6, that is, the hydraulic throttle valve body 1 is simply limited, then the four buckles 7 are buckled on the four fixed blocks 8 one by one, that is, the hydraulic throttle valve body 1 is completely limited to the top of the installation platform 4 through the clamping and fixing mode. At this time, since the sliding rod 3 is slidingly connected with the installation platform 4, the staff can indirectly adjust the oil injection direction of the high-pressure common rail oil injector through the sliding mode to adapt to different requirements of the engine, so that the applicability is better. At the same time, the staff can remove the limitation of the hydraulic throttle valve body 1 by prying off the buckle 7 for limiting the hydraulic throttle valve body 1 from the outer surface of the fixed block 8, and then facilitate disassembly and assembly for regular maintenance, which is more convenient.

[0034] It should be noted that in this text, relational terms such as first and second are used merely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0035] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic throttle valve of a high-pressure common rail fuel injector, comprising a hydraulic throttle valve body (1) and a mounting frame (2), characterized in that: The inner side of the mounting frame (2) is provided with an adjusting and maintaining assembly; The adjusting and maintaining assembly comprises a sliding rod (3) fixedly connected to the inner side of the mounting frame (2), the outer surface of the sliding rod (3) is slidably connected with a mounting platform (4), the top of the mounting platform (4) is provided with a positioning opening (5), the outer surface of the hydraulic throttle valve body (1) is fixedly connected with a positioning plate (6), the top of the mounting platform (4) is hingedly mounted with a buckle (7), the top of the positioning plate (6) is fixedly mounted with a fixing block (8), and the top of the mounting frame (2) is provided with mounting holes (9) around.

2. The hydraulic throttle valve of a high-pressure common rail fuel injector according to claim 1, characterized in that: The positioning opening (5) is circular in shape, and the bottom end of the hydraulic throttle valve body (1) penetrates through the positioning opening (5) and extends to the outside thereof.

3. The hydraulic throttle valve of a high-pressure common rail fuel injector according to claim 1, characterized in that: The number of the buckle (7) and the fixing block (8) is four, and they are oppositely distributed around the hydraulic throttle valve body (1).

4. The hydraulic throttle valve of a high-pressure common rail fuel injector according to claim 1, wherein: The size of the buckle (7) and the fixing block (8) is matched, and the buckle (7) and the fixing block (8) are connected.

5. The hydraulic throttle valve of a high-pressure common rail fuel injector according to claim 1, wherein: The top of the hydraulic throttle valve body (1) is inserted with a positioning pin (10) for strengthening the stability of the overall structure.

6. The hydraulic throttle valve of a high-pressure common rail fuel injector according to claim 1, wherein: The outer surface of the hydraulic throttle valve body (1) is bonded with a graphite heat conduction gasket (11) for heat conduction.

7. The hydraulic throttle valve of a high-pressure common rail fuel injector according to claim 1, wherein: The outer side of the hydraulic throttle valve body (1) is fixedly mounted with a small wind cover (12), the inside of the small wind cover (12) is fixedly connected with a heat dissipation fan (13) and a heat dissipation fin (14).

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