CN213165002U - Piston connecting rod assembly installation direction protection assists utensil - Google Patents
Piston connecting rod assembly installation direction protection assists utensil Download PDFInfo
- Publication number
- CN213165002U CN213165002U CN202021840947.0U CN202021840947U CN213165002U CN 213165002 U CN213165002 U CN 213165002U CN 202021840947 U CN202021840947 U CN 202021840947U CN 213165002 U CN213165002 U CN 213165002U
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- mounting hole
- steel pipe
- mandrel
- rod assembly
- dabber
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Abstract
The utility model provides an utensil is assisted in piston connecting rod assembly installation direction protection, includes dabber, steel pipe and protective sheath, the dabber clamps in the steel pipe, and the dabber can follow the axial motion of steel pipe, and the dabber is located the one end cover outside the steel pipe and is equipped with the silica gel cap, two steel ball mounting holes have been seted up to the symmetry on the outer wall of steel pipe, are provided with the marble steel ball in the steel ball mounting hole, and the marble steel ball stretches out the steel pipe or in the steel pipe of withdrawal along with the motion of dabber, the protective sheath suit is on the outer wall of steel pipe, be provided with the nylon cover between the outer wall of steel pipe and the inner wall of protective. The design has the advantages of good guiding and protecting effects, convenient use and high reliability.
Description
Technical Field
The utility model relates to an engine assembly frock technical field especially relates to a utensil is assisted in piston connecting rod assembly installation direction protection.
Background
The piston connecting rod assembly is installed to be used as an engine counterweight protection operation, and the protection in the assembling process is particularly important. At present, the connecting rods of the engine have two types: one is flat cut type, the tile cover has smooth and neat cutting surface but sharp edge; one is of an expansion-breaking type, the cutting surface of the tile cover is uneven, and the edge is meandered and staggered. When the existing piston connecting rod assembly enters a cylinder, the connecting rod orientation and the freedom degree of the big end of the connecting rod are high, the piston connecting rod assembly is free of limitation and protection, interference risks exist in the installation process, scratch of a cylinder hole and a crankshaft connecting rod neck and collision of a piston cooling nozzle are easily caused, and after the piston connecting rod assembly is installed, the cylinder hole and the crankshaft connecting rod neck cannot be confirmed to be free of damage, the repair operation cost is high, and the strength is high.
Disclosure of Invention
The utility model aims at overcoming the direction that exists among the prior art and the poor defect and the problem of protecting effect, provide a direction and the good piston rod assembly installation direction protection of protecting effect and assist the utensil.
In order to achieve the above purpose, the technical solution of the utility model is that: the utility model provides an utensil is assisted in piston connecting rod assembly installation direction protection, includes dabber, steel pipe and protective sheath, the dabber clamps in the steel pipe, and the dabber can follow the axial motion of steel pipe, two steel ball mounting holes have been seted up to the symmetry on the outer wall of steel pipe, are provided with the marble steel ball in the steel ball mounting hole, and the marble steel ball stretches out of the steel pipe or in the steel pipe that retracts along with the motion of dabber, the protective sheath suit is on the outer wall of steel pipe.
A first mounting hole, a second mounting hole and a third mounting hole are sequentially formed in the steel pipe from one end face to the other end face of the steel pipe, and the diameter of the second mounting hole is smaller than that of the first mounting hole and that of the third mounting hole;
the dabber includes dabber and No. two dabbers, a dabber cartridge is in the mounting hole No. one, and the one end of dabber is seted up threaded hole, and the other end of dabber extends to outside the mounting hole No. one, No. two dabbers include dabber body and boss, the dabber body is located the mounting hole No. three, set up on the outer wall of dabber body with marble steel ball assorted ring channel, the boss is located the mounting hole No. two, and the one end of boss is connected with the threaded hole, and the other end of boss is provided with the ring flange that is located the mounting hole No. three, and the ring flange contacts with the bottom of mounting hole No. three, the marble steel ball contacts with the outer wall of dabber body.
A silica gel cap is sleeved at one end, located outside the first mounting hole, of the first mandrel.
The fit clearance between the first mandrel and the first mounting hole, between the boss and the second mounting hole, and between the mandrel body and the third mounting hole are all smaller than 0.2 mm.
The diameter of the first mandrel is larger than that of the second mounting hole.
The diameter of the flange plate is larger than that of the second mounting hole.
The protective sleeve comprises a cylindrical section and a conical section, and the large-diameter end of the conical section is connected with the end part of the cylindrical section into a whole.
And a nylon sleeve is arranged between the outer wall of the steel pipe and the inner wall of the cylindrical section.
The protective sleeve is made of polyurethane nylon.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model relates to an in utensil is assisted in piston rod assembly installation direction protection, press the dabber earlier, the axial motion of dabber along the steel pipe, in the marble steel ball withdrawed from the steel pipe along with the motion of dabber, stretch out after inserting the connecting rod screw hole with the steel pipe again, then loosen the dabber, the marble steel ball stretches out outside the steel pipe, so that the utensil chucking is assisted in the direction protection on piston rod, the piston rod that will install the direction protection again and assist the utensil penetrates the jar hole from the cylinder body top surface, then take off the direction protection and assist the utensil, installation connecting rod tile lid. Therefore, the utility model discloses direction and protecting effect are good, convenient to use.
2. The utility model relates to a piston connecting rod assembly installation direction protection assistive device, firstly insert the dabber of the number one, No. two dabbers respectively in the steel pipe, and then through the boss of the dabber of the number two and spindle threaded connection, then pack the marble steel ball into the steel ball mounting hole, above-mentioned design not only makes installation and dismantlement simple and convenient, and when pressing the dabber, the dabber moves, the marble steel ball falls into the ring channel, so that the marble steel ball retracts in the steel pipe; a silica gel cap is sleeved at one end of the first mandrel, which is located outside the first mounting hole, so that the pressing area of operators is increased, and the mandrel is prevented from colliding with the cylinder hole, the crankshaft connecting rod neck and the piston cooling nozzle. Therefore, the utility model discloses the installation is simple and convenient, the reliability is high, convenient to use with the dismantlement.
3. In the installation guide protection auxiliary tool for the piston connecting rod assembly, the protective sleeve comprises a cylindrical section and a conical table section, and the large-diameter end of the conical table section is connected with the end part of the cylindrical section into a whole, so that the installation guide protection auxiliary tool has the functions of guiding and protecting the piston connecting rod expansion section and is convenient for operators to take; a nylon sleeve is arranged between the outer wall of the steel pipe and the inner wall of the cylindrical section, so that the protective sleeve is prevented from rotating, dislocating and moving back and forth. Therefore, the utility model discloses the reliability is high, convenient to use.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the mounting structure of the present invention.
Fig. 3 is a side view of the mounting structure of the present invention.
Fig. 4 is an enlarged view of a in fig. 3.
Figure 5 is a schematic drawing of the marble ball retracted into the steel tube.
In the figure: the mandrel comprises a mandrel 1, a first mandrel 11, a threaded hole 111, a mandrel body 12, an annular groove 121, a boss 13, a flange plate 131, a steel pipe 2, a steel ball mounting hole 21, a first mounting hole 22, a third mounting hole 23, a protective sleeve 3, a cylindrical section 31, a conical table section 32, a marble steel ball 4, a silica gel cap 5, a nylon sleeve 6 and a piston connecting rod assembly 7.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 5, an auxiliary tool for mounting, guiding and protecting a piston connecting rod assembly comprises a mandrel 1, a steel pipe 2 and a protective sleeve 3, wherein the mandrel 1 is clamped in the steel pipe 2, the mandrel 1 can move along the axial direction of the steel pipe 2, two steel ball mounting holes 21 are symmetrically formed in the outer wall of the steel pipe 2, marble steel balls 4 are arranged in the steel ball mounting holes 21, the marble steel balls 4 extend out of the steel pipe 2 or retract into the steel pipe 2 along with the movement of the mandrel 1, and the protective sleeve 3 is sleeved on the outer wall of the steel pipe 2.
A first mounting hole 22, a second mounting hole and a third mounting hole 23 are sequentially formed in the steel pipe 2 from one end face to the other end face, and the diameter of the second mounting hole is smaller than that of the first mounting hole 22 and that of the third mounting hole 23;
the mandrel 1 comprises a first mandrel 11 and a second mandrel, the first mandrel 11 is inserted into a first mounting hole 22, a threaded hole 111 is formed in one end of the first mandrel 11, the other end of the first mandrel 11 extends out of the first mounting hole 22, the second mandrel comprises a mandrel body 12 and a boss 13, the mandrel body 12 is located in a third mounting hole 23, an annular groove 121 matched with a marble steel ball 4 is formed in the outer wall of the mandrel body 12, the boss 13 is located in the second mounting hole, one end of the boss 13 is connected with the threaded hole 111, a flange 131 located in the third mounting hole 23 is arranged at the other end of the boss 13, the flange 131 is in contact with the bottom of the third mounting hole 23, and the marble steel ball 4 is in contact with the outer wall of the mandrel body 12.
A silica gel cap 5 is sleeved at one end, located outside the first mounting hole 22, of the first mandrel 11.
The fit clearance between the first mandrel 11 and the first mounting hole 22, between the boss 13 and the second mounting hole, and between the mandrel body 12 and the third mounting hole 23 are all smaller than 0.2 mm.
The diameter of the first mandrel 11 is larger than that of the second mounting hole.
The diameter of the flange 131 is larger than that of the second mounting hole.
The protective sleeve 3 comprises a cylindrical section 31 and a frustum section 32, and the large-diameter end of the frustum section 32 is connected with the end part of the cylindrical section 31 into a whole.
And a nylon sleeve 6 is arranged between the outer wall of the steel pipe 2 and the inner wall of the cylindrical section 31.
The protective sleeve 3 is made of polyurethane nylon.
The principle of the utility model is explained as follows:
the design consists of a metal body limiting part and a non-metal outer layer protection part; the metal body limiting part is composed of a stainless steel pipe and a stainless steel core shaft, and the requirement on matching precision is high; the nonmetal outer layer protection part comprises silica gel cap, polyurethane nylon protective sheath and nylon cap, and its structural dimension and overall dimension can carry out the design of flexibilization according to the product characteristic.
The components are described as follows:
1. the silica gel cap is fixed at the tail part of the stainless steel core shaft, wraps the stainless steel core shaft, increases the pressing area of an operator, and prevents the stainless steel core shaft from colliding with a cylinder hole, a crankshaft connecting rod neck and a piston cooling nozzle;
2. the stainless steel core shaft is cylindrical and is connected and clamped in the stainless steel pipe through a middle boss, the fit clearance of each part of the stainless steel core shaft is less than 0.2mm, the rear end of the stainless steel core shaft protrudes out of the stainless steel pipe, and the front end of the stainless steel core shaft is arranged in the stainless steel pipe in a pressing and loosening state (the front end of the stainless steel core shaft is arranged in the stainless steel pipe in the loosening state and has a certain distance D1 from the end surface of the stainless steel pipe, the pressing stroke of the stainless steel core shaft is D2, and D1 is larger than D2 during design, so that the front end of the stainless steel core shaft can be always arranged in the stainless; when in a pressing state, the front-end marble steel ball can be retracted into the steel pipe, and the stainless steel pipe can be inserted into the threaded hole of the big end of the connecting rod; when in a relaxed state, the marble steel ball at the front end extends out and protrudes out of the surface of the stainless steel pipe, so that the guide protection auxiliary tool is clamped on the connecting rod;
3. the stainless steel tube is cylindrical, has high strength and is not easy to deform, the mandrel and the marble steel ball are mainly clamped and fixed, and the position of the marble steel ball is designed according to the length of the thread of the big end of the connecting rod; the length of the steel pipe is designed according to the stroke of the piston and the position of the piston cooling nozzle, so that the connecting rod, the crankshaft and the piston cooling nozzle are protected, and the convenience in guiding the piston connecting rod and assembling and disassembling operations are realized;
4. the front end of the polyurethane nylon protective sleeve is consistent with the connecting rod fracture surface, and the rear end of the polyurethane nylon protective sleeve is conical, so that the polyurethane nylon protective sleeve has the functions of guiding and protecting the connecting rod fracture surface, and is convenient for operators to take;
5. the nylon sleeve is fixed at the front end of the stainless steel pipe and mainly prevents the protective sleeve from rotating and dislocating and moving back and forth.
Guiding protection auxiliary tool use instruction: pinching a piston skirt part, picking up a split-packaged piston connecting rod assembly, putting the piston connecting rod assembly into a piston ring binding device, enabling a piston connecting rod to be in a vertical posture, pressing a stainless steel core shaft, enabling a marble steel ball to freely contract into the stainless steel pipe, inserting the stainless steel pipe into a connecting rod threaded hole until a protective sleeve is attached to a connecting rod expansion section, loosening the stainless steel core shaft, enabling the marble steel ball to extend out, clamping a guide protection auxiliary tool on the connecting rod, moving the piston connecting rod assembly with the guide protection auxiliary tool installed to the position above a corresponding cylinder hole of a cylinder body, enabling the cylinder body posture to be in a top surface mode, slowly putting the tail part of the guide protection auxiliary tool into the cylinder body until the piston skirt part is in contact with the cylinder hole surface, enabling the piston skirt part not to rotate and swing the connecting rod when putting the piston connecting rod assembly into the cylinder hole, pressing the piston into the cylinder hole by using a piston poking rod after the, And (3) no clamping stagnation is generated, then the piston is completely installed in the cylinder hole according to the process, the cylinder body is turned over, the bottom surface of the cylinder body faces an operator, the axis of the cylinder hole is horizontal, the stainless steel core shaft is pressed, the marble steel ball retracts, the guide protection auxiliary tool is taken out, and the connecting rod tile cover is installed.
The design is suitable for assembling the piston and connecting rod assembly of the engine, has good protection effect on the cylinder hole, the connecting rod, the crankshaft and the piston cooling nozzle, is easy to install and disassemble, is safe and reliable, and is convenient to use and maintain; similar assembly safeguards can be used to reference this scheme.
Example 1:
referring to fig. 1 to 5, an auxiliary guide and protection tool for mounting a piston connecting rod assembly comprises a mandrel 1, a steel pipe 2 and a protective sleeve 3, wherein the mandrel 1 is clamped in the steel pipe 2, the mandrel 1 can move along the axial direction of the steel pipe 2, two steel ball mounting holes 21 are symmetrically formed in the outer wall of the steel pipe 2, marble steel balls 4 are arranged in the steel ball mounting holes 21, the marble steel balls 4 extend out of the steel pipe 2 or retract into the steel pipe 2 along with the movement of the mandrel 1, and the protective sleeve 3 is sleeved on the outer wall of the steel pipe 2; a first mounting hole 22, a second mounting hole and a third mounting hole 23 are sequentially formed in the steel pipe 2 from one end face to the other end face, and the diameter of the second mounting hole is smaller than that of the first mounting hole 22 and that of the third mounting hole 23; the mandrel 1 comprises a first mandrel 11 and a second mandrel, the first mandrel 11 is inserted into a first mounting hole 22, a threaded hole 111 is formed in one end of the first mandrel 11, the other end of the first mandrel 11 extends out of the first mounting hole 22, the second mandrel comprises a mandrel body 12 and a boss 13, the mandrel body 12 is located in a third mounting hole 23, an annular groove 121 matched with a marble steel ball 4 is formed in the outer wall of the mandrel body 12, the boss 13 is located in the second mounting hole, one end of the boss 13 is connected with the threaded hole 111, a flange 131 located in the third mounting hole 23 is arranged at the other end of the boss 13, the flange 131 is in contact with the bottom of the third mounting hole 23, and the marble steel ball 4 is in contact with the outer wall of the mandrel body 12; the fit clearance between the first mandrel 11 and the first mounting hole 22, between the boss 13 and the second mounting hole, and between the mandrel body 12 and the third mounting hole 23 are all less than 0.2 mm; the diameter of the first mandrel 11 is larger than that of the second mounting hole; the diameter of the flange 131 is larger than that of the second mounting hole.
Example 2:
the basic contents are the same as example 1, except that:
referring to fig. 1 to 3, a silica gel cap 5 is sleeved on one end of the first mandrel 11, which is located outside the first mounting hole 22.
Example 3:
the basic contents are the same as example 1, except that:
referring to fig. 1 to 4, the protective sleeve 3 includes a cylindrical section 31 and a frustum section 32, and a large diameter end of the frustum section 32 is connected with an end of the cylindrical section 31; a nylon sleeve 6 is arranged between the outer wall of the steel pipe 2 and the inner wall of the cylindrical section 31; the protective sleeve 3 is made of polyurethane nylon.
Claims (9)
1. The utility model provides an utensil is assisted in piston connecting rod assembly installation direction protection, its characterized in that, includes dabber (1), steel pipe (2) and protective sheath (3), dabber (1) clamps in steel pipe (2), and dabber (1) can follow the axial motion of steel pipe (2), two steel ball mounting holes (21) have been seted up to the symmetry on the outer wall of steel pipe (2), are provided with marble steel ball (4) in steel ball mounting hole (21), and marble steel ball (4) stretch out outside steel pipe (2) or in withdrawal steel pipe (2) along with the motion of dabber (1), protective sheath (3) suit is on the outer wall of steel pipe (2).
2. The piston rod assembly installation guide protection aid of claim 1, wherein:
a first mounting hole (22), a second mounting hole and a third mounting hole (23) are sequentially formed in the steel pipe (2) from one end face to the other end face, and the diameter of the second mounting hole is smaller than that of the first mounting hole (22) and that of the third mounting hole (23);
the mandrel (1) comprises a first mandrel (11) and a second mandrel, the first mandrel (11) is inserted into the first mounting hole (22), one end of the first mandrel (11) is provided with a threaded hole (111), the other end of the first mandrel (11) extends out of the first mounting hole (22), the second mandrel comprises a mandrel body (12) and a boss (13), the mandrel body (12) is positioned in the third mounting hole (23), the outer wall of the mandrel body (12) is provided with an annular groove (121) matched with the marble steel ball (4), the boss (13) is positioned in the second mounting hole, one end of the boss (13) is connected with the threaded hole (111), the other end of the boss (13) is provided with a flange plate (131) positioned in the third mounting hole (23), the flange plate (131) is contacted with the bottom of the third mounting hole (23), the marble steel ball (4) is in contact with the outer wall of the mandrel body (12).
3. A piston rod assembly installation guide protection aid as claimed in claim 2, wherein: a silica gel cap (5) is sleeved at one end, located outside the first mounting hole (22), of the first mandrel (11).
4. A piston rod assembly installation guide protection aid as claimed in claim 2, wherein: the fit clearance between the first mandrel (11) and the first mounting hole (22), between the boss (13) and the second mounting hole, and between the mandrel body (12) and the third mounting hole (23) is less than 0.2 mm.
5. A piston rod assembly installation guide protection aid as claimed in claim 2, wherein: the diameter of the first mandrel (11) is larger than that of the second mounting hole.
6. A piston rod assembly installation guide protection aid as claimed in claim 2, wherein: the diameter of the flange plate (131) is larger than that of the second mounting hole.
7. The piston rod assembly installation guide protection aid of claim 1, wherein: the protective sleeve (3) comprises a cylindrical section (31) and a conical section (32), and the large-diameter end of the conical section (32) is connected with the end part of the cylindrical section (31) into a whole.
8. The piston rod assembly installation guide protection aid of claim 7, wherein: a nylon sleeve (6) is arranged between the outer wall of the steel pipe (2) and the inner wall of the cylindrical section (31).
9. The piston rod assembly installation guide protection aid of claim 1, wherein: the protective sleeve (3) is made of polyurethane nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021840947.0U CN213165002U (en) | 2020-08-28 | 2020-08-28 | Piston connecting rod assembly installation direction protection assists utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021840947.0U CN213165002U (en) | 2020-08-28 | 2020-08-28 | Piston connecting rod assembly installation direction protection assists utensil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213165002U true CN213165002U (en) | 2021-05-11 |
Family
ID=75768403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021840947.0U Active CN213165002U (en) | 2020-08-28 | 2020-08-28 | Piston connecting rod assembly installation direction protection assists utensil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213165002U (en) |
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2020
- 2020-08-28 CN CN202021840947.0U patent/CN213165002U/en active Active
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