Mounting device for mounting copper bush of oil sprayer

Abstract

The utility model provides a mounting device for mounting a copper bush of an oil sprayer, which comprises a guide-in tool, a guide-in device, a guide-in device and a guide-out device, the guide-in device comprises a shaping section and a stress section, the shaping section and the stress section are integrally formed or fixedly connected, and a guide-in groove is formed in the guide-in device along the length direction of the guide-in device; the push rod is detachably arranged in the lead-in groove, the first end of the push rod penetrates out of the lead-in groove, and the first end of the push rod is further provided with a pressure part used for shaping the copper sleeve; the technical scheme provided by the utility model at least has the beneficial effects that the large-head section of the copper sleeve is extruded and shaped through the shaping section, so that the copper sleeve is more attached to a bottom hole of the copper sleeve of the oil injector of the cylinder cover, and the copper sleeve is not damaged under the acting force of the actuator and the push rod. In addition, the first end of the push rod is further provided with the pressure part to extrude and shape the small end section of the copper sleeve, so that the small end section of the copper sleeve is further attached to an oil nozzle bottom hole part of the small end section of the oil sprayer copper sleeve of the air cylinder cover, and the product quality is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of cylinder fuel injectors, and in particular to an installation device for installing a copper sleeve of a fuel injector. Background Art

[0002] The main function of the injector copper sleeve of the engine cylinder head is to carry the injector and seal the water cavity inside the cylinder head. The quality of the copper sleeve press-fitting will directly affect the sealing of the cylinder head, thereby affecting the combustion performance of the diesel engine. The failure mode is mainly due to the loose sealing of the seal ring at the large end of the copper sleeve, the expansion and pressure of the small end of the copper sleeve and the cylinder head, and the small end face of the copper sleeve and the small end plane of the nozzle hole. As a result, the copper sleeve loosens and falls off during use, causing sealing failure and water leakage.

[0003] The existing press-fitting method only ensures that the injector copper sleeve is pressed into the cylinder head, but cannot effectively ensure that it is pressed into place. There are risks such as the sealing ring at the big end of the copper sleeve is not sealed tightly, the small end of the copper sleeve is not tightly fitted to the cylinder head due to expansion and pressure, and the small end face of the copper sleeve is not tightly fitted to the small end plane of the nozzle hole. As a result, the copper sleeve may loosen or fall off during use, causing seal failure and water leakage, affecting the sealing of the cylinder head and thus affecting the combustion performance of the diesel engine. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a mounting device for installing a copper sleeve of a fuel injector, which is used to solve the problem that the existing press-fitting method in the prior art only ensures that the copper sleeve of the fuel injector is pressed into the cylinder head, but cannot effectively ensure that it is pressed into place.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a mounting device for installing a copper sleeve of a fuel injector, comprising:

[0006] An introduction tool, the introduction tool comprising a shaping section and a force-bearing section, the shaping section and the force-bearing section are integrally formed or fixedly connected, and an introduction groove is arranged inside the introduction tool along its length direction;

[0007] A push rod, the push rod is detachably arranged in the introduction groove, the first end of the push rod is arranged to pass through the introduction groove, and the first end of the push rod is also provided with a pressure part for shaping the copper sleeve;

[0008] An actuator is in contact with the second end of the push rod for applying power.

[0009] Optionally, a force-bearing portion is provided at the second end of the push rod, the force-bearing portion is in contact with the actuator for receiving power applied by the actuator, and the diameter of the force-bearing portion is greater than the diameter of the force-bearing section.

[0010] Optionally, a reinforcement portion is further provided on the push rod, and the reinforcement portion is arranged close to the force-bearing portion.

[0011] Optionally, a limiting groove is provided at one end of the introduction groove away from the pressure portion, and the reinforcement portion is located inside the limiting groove.

[0012] Optionally, a first step for pushing the copper sleeve is provided on one side of the shaping section close to the force-bearing section.

[0013] Optionally, a side of the first step away from the force-bearing section has a rounded corner.

[0014] Optionally, a second step for shaping the copper sleeve is provided at one end of the shaping section away from the force-bearing section.

[0015] Optionally, one end of the second step close to the pressure portion has a rounded corner.

[0016] Optionally, a hand holding groove is provided on one side of the force bearing section close to the shaping section.

[0017] Optionally, the pressure portion is a spherical structure, and a diameter of the pressure portion is smaller than a diameter of the introduction groove.

[0018] As described above, the beneficial effects brought about by the technical solution in the utility model include at least: the large head section of the copper sleeve is extruded and shaped by the shaping section, so that the copper sleeve can better fit the bottom hole of the copper sleeve of the cylinder head injector; under the action of the actuator and the push rod, the shaping section is forced to extrude and deform the copper sleeve, and a pressure portion is also provided at the first end of the push rod to extrude and shape the small head section of the copper sleeve, so that the small head section of the copper sleeve can also better fit the bottom hole of the nozzle of the small head section of the copper sleeve of the cylinder head injector, thereby avoiding problems of poor sealing and water leakage, ensuring product quality, reducing quality problems and cumbersome process rework caused by poor sealing of the copper sleeve of the injector, and its stability and reliability will greatly improve the production efficiency of the production line and the level of product quality control. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A cross-sectional view of a mounting device showing an exemplary embodiment of the present invention;

[0020] Figure 2 A cross-sectional view of an introducer of an exemplary embodiment of the present invention is shown;

[0021] Figure 3 Shown is a schematic diagram of a push rod structure of an exemplary embodiment of the present utility model.

[0022] Part Number Description

[0023] 1. Introduction tool; 101. Shaping section; 102. Force-bearing section; 103. First step; 104. Second step; 105. Hand-holding slot; 2. Introduction slot; 3. Push rod; 4. Pressure section; 5. Actuator; 6. Force-bearing section; 7. Reinforcement section; 8. Limiting slot. DETAILED DESCRIPTION

[0024] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0025] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0026] It should be noted that, in this embodiment, the first end is designated as the front end, and the second end is designated as the back end.

[0027] See also Figure 1 and Figure 3 The utility model provides an installation device for installing a copper sleeve of a fuel injector, comprising: an introduction tool 1, the introduction tool 1 comprising a shaping section 101 and a force-bearing section 102, the shaping section 101 and the force-bearing section 102 are integrally formed or fixedly connected, and an introduction groove 2 is arranged inside the introduction tool 1 along its length direction; a push rod 3, the push rod 3 is detachably arranged in the introduction groove 2, the first end of the push rod 3 is arranged to pass through the introduction groove 2, and the first end of the push rod 3 is also provided with a pressure part 4 for shaping the copper sleeve; an actuator 5, the actuator 5 is in contact with the second end of the push rod 3 for applying power.

[0028] In one embodiment of the present application, specifically, the device includes an introduction tool 1 and a push rod 3. The introduction tool 1 is an irregular cylindrical structure. An introduction groove 2 is arranged inside the introduction tool 1. The two ends of the introduction groove 2 penetrate the two ends of the introduction tool 1 respectively. The introduction tool 1 includes a shaping section 101 and a force section 102. The shaping section extends into the copper sleeve to press the copper sleeve down to a specified position and shape the bottom hole of the copper sleeve of the cylinder head injector. The push rod 3 is detachably arranged in the introduction groove 2. When the introduction tool 1 is inserted into the copper sleeve of the injector, the push rod 3 is inserted into the introduction groove 2. A pressure part 4 is arranged at the front end of the push rod 3. The front end of the push rod 3 and the pressure part 4 extend from the introduction groove 2 to contact the copper sleeve. The pressure part 4 extrude and shape the copper sleeve. An actuator 5 is also arranged at the rear end of the push rod 3. The actuator 5 applies a force to the rear end of the push rod 3, so that the pressure part 4 is forced to shape the bottom hole part of the nozzle of the small head section of the copper sleeve of the cylinder head injector.

[0029] Optionally, the actuator 5 may select a hammer to strike, or select a cylinder to apply force to the push rod 3 .

[0030] The second end of the push rod 3 is provided with a force-bearing portion 6 , which is in contact with the actuator 5 for receiving the power applied by the actuator 5 . The diameter of the force-bearing portion 6 is greater than the diameter of the force-bearing section 102 .

[0031] In one embodiment of the present application, specifically, a force-bearing part 6 is also connected to the rear end of the push rod 3, and the force-bearing part 6 is a cylindrical structure. The diameter of the force-bearing part 6 is larger than the diameter of the force-bearing section 102. When the push rod 3 is extended into the introduction groove 2, the front end of the force-bearing part 6 and the rear end of the force-bearing section 102 are connected, and the force received by the force-bearing part 6 is transmitted to the force-bearing section 102.

[0032] See also Figure 2 The push rod 3 is also provided with a reinforcing portion 7 , and the reinforcing portion 7 is arranged close to the force-bearing portion 6 .

[0033] A limiting groove 8 is provided at one end of the introduction groove 2 away from the pressure portion 4 , and the reinforcement portion 7 is located inside the limiting groove 8 .

[0034] In one embodiment of the present application, specifically, a limiting groove 8 is provided at the rear end of the introduction groove 2, the diameter of the limiting groove 8 is larger than the diameter of the introduction groove 2, the limiting groove 8 is connected to the introduction groove 2 through a cylindrical slope, and a reinforcement portion 7 is provided at the rear end of the push rod 3. The reinforcement portion 7 is a cylindrical structure, and the diameter of the reinforcement portion 7 is larger than the diameters of the push rod 3 and the introduction groove 2. When the push rod 3 is extended into the introduction groove 2, the reinforcement portion 7 is stuck in the limiting groove 8.

[0035] As an optimization, a rounded corner is provided at the front end of the reinforcement portion 7, and the rounded corner and the cylindrical slope cooperate to provide buffering.

[0036] In one embodiment of the present application, specifically, a first step 103 for pushing the copper sleeve is provided on one side of the shaping section 101 close to the force-bearing section 102, and a rounded corner is provided on the side of the first step 103 away from the force-bearing section 102. The rounded corner at the front end of the first step 103 can buffer the impact on the copper sleeve, thereby preventing the copper sleeve from being damaged and creased when it is plasticized in a fixed position due to the right angle of the first step 103, which would result in a poor sealing effect.

[0037] In one embodiment of the present application, specifically, the shaping section 101 is provided with a second step 104 for shaping the copper sleeve at one end away from the force-bearing section 102 , and the second step 104 is rounded at one end close to the pressure portion 4 .

[0038] In one embodiment of the present application, specifically, a hand-holding groove 105 is provided on one side of the force-bearing section 102 close to the shaping section 101, which facilitates the pick-up and placement operation and also concentrates the force on the step surface, so that the downward force can act more on the copper sleeve.

[0039] In one embodiment of the present application, specifically, the pressure portion 4 is a spherical structure, and the diameter of the pressure portion 4 is smaller than the diameter of the introduction groove 2. The pressure ball is replaced regularly according to the effective service life of the number of knocking times to ensure the knock-in quality of the injector copper sleeve.

[0040] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. The installation device for installing the copper sleeve of the fuel injector is characterized in that: include: An introduction tool, the introduction tool comprising a shaping section and a force-bearing section, the shaping section and the force-bearing section are integrally formed or fixedly connected, and an introduction groove is arranged inside the introduction tool along its length direction; A push rod, the push rod is detachably arranged in the introduction groove, the first end of the push rod is arranged to pass through the introduction groove, and the first end of the push rod is also provided with a pressure part for shaping the copper sleeve; An actuator is in contact with the second end of the push rod for applying power.

2. The installation device for installing the copper sleeve of the fuel injector according to claim 1, characterized in that: The second end of the push rod is provided with a force-bearing portion, which is in contact with the actuator for receiving the power applied by the actuator, and the diameter of the force-bearing portion is greater than the diameter of the force-bearing section.

3. The installation device for installing the copper sleeve of the fuel injector according to claim 2, characterized in that: The push rod is also provided with a reinforcement portion, and the reinforcement portion is arranged close to the force-bearing portion.

4. The installation device for installing the copper sleeve of the fuel injector according to claim 3 is characterized in that: A limiting groove is arranged at one end of the introduction groove away from the pressure portion, and the reinforcement portion is located inside the limiting groove.

5. The installation device for installing the copper sleeve of the fuel injector according to claim 1, characterized in that: A first step for pushing the copper sleeve is arranged on one side of the shaping section close to the force-bearing section.

6. The installation device for installing the copper sleeve of the fuel injector according to claim 5, characterized in that: A side of the first step away from the force-bearing section has a rounded corner.

7. The installation device for installing the copper sleeve of the fuel injector according to claim 1, characterized in that: One end of the shaping section away from the force-bearing section is provided with a second step for shaping the copper sleeve.

8. The installation device for installing the copper sleeve of the fuel injector according to claim 7, characterized in that: One end of the second step close to the pressure portion is rounded.

9. The installation device for installing the copper sleeve of the fuel injector according to claim 1, characterized in that: A hand holding groove is arranged on one side of the force bearing section close to the shaping section.

10. The installation device for installing the copper sleeve of the fuel injector according to claim 1, characterized in that: The pressure portion is a spherical structure, and the diameter of the pressure portion is smaller than the diameter of the introduction groove.

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