CN210232901U - Disassembling tool for fastening bolt of engine cylinder cover - Google Patents
Disassembling tool for fastening bolt of engine cylinder cover Download PDFInfo
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- CN210232901U CN210232901U CN201921086591.3U CN201921086591U CN210232901U CN 210232901 U CN210232901 U CN 210232901U CN 201921086591 U CN201921086591 U CN 201921086591U CN 210232901 U CN210232901 U CN 210232901U
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- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010720 hydraulic oil Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a dismounting tool for fastening bolts of an engine cylinder cover, which comprises a hydraulic stretcher, a bracket and a connecting rod, wherein the bracket comprises a horizontal plate and a hollow sleeve, and the sleeve is arranged at four corners of the horizontal plate; the hydraulic drawing device comprises a sleeve, a hydraulic stretcher, a cylinder cover bolt seat, a hydraulic stretcher, a hydraulic tensioner, a cylinder cover bolt seat, a sleeve, a hydraulic oil cylinder, a hydraulic; the connecting rod alternates in the sleeve pipe, and the one end of connecting rod is provided with the external screw thread and passes the minor diameter section and be connected with the hydraulic pressure elongator, and the other end of connecting rod is provided with the internal thread hole and is connected with cylinder cap fastening bolt. The utility model discloses a realize when the fastening nut and the too narrow and small dismantlement of fastening bolt of the distance at bolt seat edge, not produce any damage to the cylinder cap moreover, also improved production efficiency.
Description
Technical Field
The utility model relates to an engine assembly fixture field, concretely relates to engine cylinder lid fastening bolt's extracting tool.
Background
The engine head is mounted on the cylinder block, and seals the cylinder from the upper part to form a combustion chamber. It is often in contact with high temperature and pressure combustion gases and is therefore subjected to significant thermal and mechanical loads. The cylinder cover of the engine is fixed on the cylinder body through the cylinder cover bolt, the cylinder cover bolt is one of important bolts in the engine, and the cylinder cover bolt is screwed to generate uniform and proper pressing force on a cylinder cushion of the cylinder cover so as to seal high-temperature and high-pressure gas in the cylinder and simultaneously seal lubricating oil of cooling water. If the bolt pretightening force is insufficient, the air leakage and the insufficient power of the engine can be caused, and the cylinder gasket can be cracked when the engine is serious; if the pretightening force is too large, the deformation of a cylinder cover and a cylinder gasket can be excessive, and the sealing is also not facilitated.
In actual operation, every cylinder head bolt hole department all is provided with convex bolt seat, because the cylinder cap structure, the design of cylinder head bolt hole position, make the nut screw up back on cylinder head bolt, the distance at nut and bolt seat edge is too narrow and small, if directly use hydraulic stretcher to dismantle cylinder head bolt, the nut can be covered to the support ring of hydraulic stretcher bottom, and can use constrictive bolt seat edge to support when stretching bolt, make bolt seat edge bear great pressure, because the thickness of support ring is far greater than the distance at nut and bolt seat edge, lead to bolt seat edge to collapse and engine cylinder lid impaired, perhaps the bolt fracture, influence the dismouting of engine cylinder lid, work efficiency has been reduced.
Disclosure of Invention
The utility model aims to solve is that the distance at fastening nut and bolt seat edge is too narrow and small and can't use hydraulic stretcher to dismantle fastening bolt's technical problem on the engine cylinder lid, and aim at provides one kind and guarantees not to damage the cylinder cap and dismantle fastening bolt, improves work efficiency's engine cylinder lid fastening bolt's extracting tool.
The utility model discloses a following technical scheme realizes: a dismounting tool for an engine cylinder cover fastening bolt comprises a hydraulic stretcher, a support and a connecting rod, wherein the support comprises a horizontal plate and a hollow sleeve, the horizontal plate is square, and the sleeve is arranged at four corners of the horizontal plate;
the hydraulic drawing device comprises a sleeve, a hydraulic stretcher, a sleeve, a cylinder cover bolt seat, a hydraulic stretcher, a hydraulic tensioner, a cylinder cover bolt seat, a sleeve, a hydraulic cylinder cover bolt seat and a hydraulic drawing device, wherein the top of the sleeve is integrally provided with a small-diameter section coaxial with the axis of the sleeve, the hydraulic stretcher is sleeved on the small-diameter section, the diameter of the small-diameter section is smaller than that of the sleeve, a Z-shaped ladder is;
the connecting rod alternates in the sleeve pipe, and the one end of connecting rod is provided with the external screw thread and passes the minor diameter section and be connected with the hydraulic pressure elongator, and the other end of connecting rod is provided with the internal thread hole and is connected with cylinder cap fastening bolt.
In order to solve because of the nut too narrow and small technical problem who can't use the hydraulic stretcher to dismantle fastening bolt with the distance at bolt seat edge, the utility model discloses a hollow sleeve pipe covers in the outside of nut, and the thickness of the relative hydraulic stretcher support ring of sheathed tube wall thickness is a lot of little, and when dismantling the bolt, the sleeve pipe just is fit for nut and the narrow and small distance at bolt seat edge, consequently, the sleeve pipe replaces hydraulic stretcher support ring to act on the bolt seat, avoids the bolt seat edge to bear great pressure and collapses, plays the effect of protection cylinder cap.
After the hydraulic stretcher stretches the fastening bolt, in order to rotate the detachable nut, the bottom of the sleeve is provided with a semicircular section, the semicircular section is formed by cutting off half of the bottom of the sleeve along the diameter, a notch is formed at the bottom of the sleeve, and the length of the semicircular section is determined according to the thickness of the nut and the length of the fastening bolt, so that the nut can be completely exposed and can also be completely exposed after moving up a distance along the axis of the sleeve.
Because the sleeve pipe is the pipe that has certain length, and hydraulic pressure elongator, fastening bolt are located sheathed tube both ends respectively, realize the purpose of hydraulic pressure elongator to fastening bolt's effect in order to connect hydraulic pressure elongator and fastening bolt, the utility model discloses a connection function is realized to the connecting rod, and the one end of connecting rod sets up the internal thread hole and is connected with fastening bolt, and the other end of connecting rod sets up the external screw thread and is connected with hydraulic pressure elongator. When the bolt is disassembled, the hydraulic stretcher takes the sleeve as an acting point and hydraulic drive as power to lift the connecting rod, and then the fastening bolt is stretched through the connecting rod.
In order to install the hydraulic stretcher on the sleeve pipe and provide the impetus for the hydraulic stretcher, set up the path section at the sheathed tube top, path section and sleeve pipe integrated into one piece, the axis collineation of the two, path section and sheathed tube junction form the Z word ladder, when dismantling the bolt, the support ring cover of hydraulic stretcher is in path section periphery and with support and lean on the Z word ladder, when the hydraulic stretcher carries and draws the connecting rod, the Z word ladder provides the impetus for the hydraulic stretcher.
Because the semicircle section is only half of the sheathed tube, be one section semicircle pipe, in order to make the stable stand of sleeve pipe ability on the bolt seat and guarantee that every bolt atress is the same, the utility model discloses a horizontal plate connecting sleeve, with the sleeve pipe setting on four angles of horizontal plate, form the support through four sleeve pipes and horizontal plate, realize that the sleeve pipe is stable to be placed on the bolt seat, the fastening bolt's of being convenient for dismantlement makes the hydraulic stretcher on every sleeve pipe can both exert the pulling force of same direction to every bolt moreover, under the prerequisite that the pulling force was set for, guarantees that every bolt all receives along bolt axis and tensile force that the size equals, avoids the bolt to receive the pulling force of slope and bolt fracture or damage cylinder cap.
Furthermore, the inner diameter of the sleeve is 1-2 mm larger than the maximum outer diameter of a nut on a cylinder cover fastening bolt.
In order to enable the nut to rotate in the sleeve to achieve the purpose of disassembling the fastening bolt, the inner diameter of the sleeve is 1-2 mm larger than the maximum outer diameter of the nut on the cylinder cover fastening bolt, and after the hydraulic stretcher stretches the fastening bolt, an operator can rotate the nut through the deflector rod to disassemble the fastening bolt.
Further, the diameter of the connecting rod is larger than that of the cylinder cover fastening bolt and smaller than the inner diameter of the small-diameter section.
In order to secure that one end of the connecting rod can be connected with the fastening bolt through the internal thread, the diameter of the connecting rod needs to be larger than that of the fastening bolt, but at the same time, in order that the connecting rod can smoothly pass through the small-diameter section and freely move, the diameter of the connecting rod needs to be smaller than the inner diameter of the small-diameter section.
Further, the distance between two adjacent sleeves in the length direction of the horizontal plate is equal to the distance between two adjacent fastening bolts in the length direction of the cylinder cover, and the distance between two adjacent sleeves in the width direction of the horizontal plate is equal to the distance between two adjacent fastening bolts in the width direction of the cylinder cover.
In order to enable the sleeves to correspond to the fastening bolts on the cylinder cover one by one, the distance between two adjacent sleeves in the length direction of the horizontal plate is equal to the distance between two adjacent fastening bolts in the length direction of the cylinder cover, and the distance between two adjacent sleeves in the width direction of the horizontal plate is equal to the distance between two adjacent fastening bolts in the width direction of the cylinder cover.
Furthermore, the wall thickness of the sleeve is 10-15 mm.
In order to ensure that the sleeve has enough strength to bear the pressure of the hydraulic stretcher on the sleeve, the wall thickness of the sleeve is 10-15 mm, and the sleeve is prevented from being fractured due to insufficient strength when the hydraulic stretcher stretches the fastening bolt.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model discloses a sleeve pipe replaces hydraulic stretching ware, avoid hydraulic stretching ware direct action on the bolt seat and fracturing the bolt seat, play the effect of protection cylinder cap, adopt the horizontal plate to link together four sleeve pipes simultaneously, realize that the sleeve pipe is stably placed on the bolt seat, be convenient for fastening bolt's dismantlement, and make the hydraulic stretching ware on every sleeve pipe can all apply the pulling force of same direction to every bolt, under the prerequisite of pulling force settlement, guarantee that every bolt all receives along the bolt axis and the pulling force that the size is equal, avoid the bolt to receive the pulling force of slope and the bolt fracture or damage cylinder cap; the utility model adopts the semi-circle section to ensure that the nut can be completely exposed and can be completely exposed after moving up a distance along the axis of the sleeve, thereby facilitating the rotation of the nut by an operator and realizing the purpose of disassembling the fastening bolt; the utility model adopts the connecting rod to realize the connection between the hydraulic stretcher and the fastening bolt and the transmission of the tension, which is convenient for the hydraulic stretcher to stretch the fastening bolt; the utility model discloses set up the path section and sheathed tube junction forms the Z word ladder at the sleeve pipe top, provides the impetus for the hydraulic pressure elongator.
The utility model discloses a sleeve pipe, horizontal plate, connecting rod and hydraulic pressure elongator have realized fastening bolt's dismantlement when the distance at fastening nut and bolt seat edge is too narrow and small, do not produce any damage to the cylinder cap moreover, have also improved production efficiency.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a schematic view of a bushing and connecting rod;
FIG. 4 is a schematic exterior view of the sleeve;
FIG. 5 is a schematic structural view of a connecting rod;
reference numbers and corresponding part names in the drawings:
the hydraulic stretching machine comprises a hydraulic stretcher, a sleeve pipe, a horizontal plate, a connecting rod, a bolt seat, a small-diameter section, a semicircular section, an external thread and an internal thread hole, wherein the hydraulic stretcher comprises 1 hydraulic stretcher, 2 sleeve pipes, 3 horizontal plates, 4 connecting rods, 5 bolt seats, 6 small-diameter sections, 7 semicircular sections, 8 external threads and 9 internal thread holes.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1
As shown in fig. 1 to 5, the tool for detaching the fastening bolt of the engine cylinder head comprises a hydraulic stretcher 1, a support and a connecting rod 4, wherein the support comprises a horizontal plate 3 and a hollow sleeve 2, the horizontal plate 3 is square, and the sleeve 2 is arranged at four corners of the horizontal plate 3;
the hydraulic drawing device is characterized in that a small-diameter section 6 coaxial with the axis of the sleeve 2 is integrally formed at the top of the sleeve 2, the hydraulic drawing device 1 is sleeved on the small-diameter section 6, the diameter of the small-diameter section 6 is smaller than that of the sleeve 2, a Z-shaped ladder is formed at the joint of the small-diameter section 6 and the sleeve 2, a semicircular section 7 is arranged at the bottom of the sleeve 2, the cross section of the semicircular section 7 is half of that of the sleeve 2, and the end face of the semicircular section 7 is attached to the upper surface of a cylinder cover bolt seat;
the connecting rod 4 is inserted in the sleeve 2, one end of the connecting rod 4 is provided with an external thread 8 and penetrates the small-diameter section 6 to be connected with the hydraulic stretcher 1, and the other end of the connecting rod 4 is provided with an internal thread hole 9 and is connected with a cylinder cover fastening bolt.
In order to solve because of the nut too narrow and small technical problem who can't use hydraulic stretcher 1 to dismantle fastening bolt with the distance at bolt seat edge, the utility model discloses a hollow sleeve pipe 2 covers in the outside of nut, and the thickness of the relative hydraulic stretcher support ring of sleeve pipe 2's wall thickness is a lot less, and when dismantling the bolt, sleeve pipe 2 just is fit for nut and the narrow and small distance in 5 edges of bolt seat, consequently, sleeve pipe 2 replaces hydraulic stretcher support ring to act on the bolt seat, avoids the bolt seat edge to bear great pressure and collapses, plays the effect of protection cylinder cap.
After the hydraulic stretcher 1 stretches the fastening bolt, in order to rotate and dismantle the nut, set up semicircle section 7 bottom sleeve 2, semicircle section 7 is cut off half along the diameter by sleeve 2 bottom and is formed, forms a breach bottom sleeve 2, and the length of semicircle section 7 is confirmed according to the thickness of nut and fastening bolt's length moreover, guarantees that the nut can completely expose and also can completely expose after moving up a distance along sleeve 2 axis.
Because sleeve pipe 2 is the pipe that has certain length, and hydraulic stretching ware 1, fastening bolt are located sleeve pipe 2's both ends respectively, realize the purpose of hydraulic stretching ware 1 to fastening bolt's effect in order to connect hydraulic stretching ware 1 and fastening bolt, the utility model discloses a connecting rod 4 realizes connection function, and the one end of connecting rod 4 sets up internal thread hole 9 and is connected with fastening bolt, and the other end of connecting rod sets up external screw thread 8 and is connected with hydraulic stretching ware 1. When the bolt is disassembled, the hydraulic stretcher 1 uses the sleeve 2 as an acting point and hydraulic drive as power to lift the connecting rod 4, and then the fastening bolt is stretched through the connecting rod 4.
In order to install hydraulic stretcher 1 on sleeve pipe 2 and for hydraulic stretcher 1 provides the impetus, set up path section 6 at the top of sleeve pipe 2, path section 6 and sleeve pipe 2 integrated into one piece, the axis collineation of the two, path section 6 forms the Z style of calligraphy ladder with the junction of sleeve pipe 2, when dismantling the bolt, hydraulic stretcher 1's support ring cover is at path section 6 periphery and with support and lean on the Z style of calligraphy ladder, when hydraulic stretcher 1 carries and draws connecting rod 4, the Z style of calligraphy ladder provides the impetus for hydraulic stretcher 1.
Because semicircle section 7 only has sleeve pipe 2 half, is one section semicircle pipe, stand on the bolt seat in order to make sleeve pipe 2 can be stable, the utility model discloses a 3 adapter sleeve 2 of horizontal plate, set up sleeve pipe 2 on four angles of horizontal plate 2, form the support through four sleeve pipes 2 and horizontal plate 3, realize that sleeve pipe 2 stably places on the bolt seat, the fastening bolt's of being convenient for dismantlement, make hydraulic stretcher 1 on every sleeve pipe 2 can both exert the pulling force of same direction to every bolt moreover, under the prerequisite that the pulling force was set for, guarantee that every bolt all receives along the pulling force that bolt axis and size equal, avoid the bolt to receive the pulling force of slope and bolt fracture or damage cylinder cap.
Example 2
The present embodiment is further described with reference to embodiment 1.
Further, the inner diameter of the sleeve 2 is 1-2 mm larger than the maximum outer diameter of a nut on a cylinder cover fastening bolt.
In order to enable the nut to rotate in the sleeve 2 to achieve the purpose of disassembling the fastening bolt, the inner diameter of the sleeve 2 is 1-2 mm larger than the maximum outer circle diameter of the nut on the cylinder cover fastening bolt, and after the hydraulic stretcher 1 stretches the fastening bolt, an operator can rotate the nut through the deflector rod to disassemble the fastening bolt.
Further, the diameter of the connecting rod 4 is larger than that of the head fastening bolt and smaller than the inner diameter of the small diameter section 6.
In order to connect one end of the connecting rod 4 with the fastening bolt through the internal thread, the diameter of the connecting rod 4 should be larger than that of the fastening bolt, but at the same time, in order for the connecting rod 4 to smoothly pass through the small diameter section 6 and move freely, the diameter of the connecting rod 4 should be smaller than the inner diameter of the small diameter section 6.
Further, the distance between two adjacent sleeves 2 in the length direction of the horizontal plate 3 is equal to the distance between two adjacent fastening bolts in the length direction of the cylinder cover, and the distance between two adjacent sleeves 2 in the width direction of the horizontal plate 3 is equal to the distance between two adjacent fastening bolts in the width direction of the cylinder cover.
In order to enable the sleeves 2 to correspond to the fastening bolts on the cylinder cover one by one, the distance between two adjacent sleeves 2 in the length direction of the horizontal plate 3 is equal to the distance between two adjacent fastening bolts in the length direction of the cylinder cover, and the distance between two adjacent sleeves 2 in the width direction of the horizontal plate 3 is equal to the distance between two adjacent fastening bolts in the width direction of the cylinder cover.
Furthermore, the wall thickness of the sleeve 2 is 10-15 mm.
In order to ensure that the sleeve 2 has enough strength to bear the pressure of the hydraulic stretcher 1 on the sleeve 2, the wall thickness of the sleeve 2 is 10-15 mm, and the sleeve 2 is prevented from being fractured due to insufficient strength when the hydraulic stretcher 1 stretches fastening bolts.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides an engine cylinder lid fastening bolt's extracting tool, includes hydraulic pressure elongator (1), its characterized in that: the support comprises a horizontal plate (3) and hollow sleeves (2), the horizontal plate (3) is square, and the sleeves (2) are arranged at four corners of the horizontal plate (3);
the hydraulic drawing device is characterized in that a small-diameter section (6) coaxial with the axis of the sleeve (2) is integrally formed at the top of the sleeve (2), the hydraulic drawing device (1) is sleeved on the small-diameter section (6), the diameter of the small-diameter section (6) is smaller than that of the sleeve (2), a Z-shaped ladder is formed at the joint of the small-diameter section (6) and the sleeve (2), a semicircular section (7) is arranged at the bottom of the sleeve (2), the cross section of the semicircular section (7) is half of that of the sleeve (2), and the end face of the semicircular section (7) is attached to the upper surface of a cylinder cover bolt seat;
connecting rod (4) alternate in sleeve pipe (2), and the one end of connecting rod (4) is provided with external screw thread (8) and passes path section (6) and be connected with hydraulic pressure elongator (1), and the other end of connecting rod (4) is provided with internal thread hole (9) and is connected with cylinder cap fastening bolt.
2. The tool for removing the fastening bolt of the engine head as set forth in claim 1, wherein: the inner diameter of the sleeve (2) is 1-2 mm larger than the maximum outer diameter of a nut on a cylinder cover fastening bolt.
3. The tool for removing the fastening bolt of the engine head as set forth in claim 1, wherein: the diameter of the connecting rod (4) is larger than that of the cylinder cover fastening bolt and smaller than the inner diameter of the small-diameter section (6).
4. The tool for removing the fastening bolt of the engine head as set forth in claim 1, wherein: the distance between two adjacent sleeves (2) in the length direction of the horizontal plate (3) is equal to the distance between two adjacent fastening bolts in the length direction of the cylinder cover, and the distance between two adjacent sleeves (2) in the width direction of the horizontal plate (3) is equal to the distance between two adjacent fastening bolts in the width direction of the cylinder cover.
5. The tool for removing the fastening bolt of the engine head as set forth in claim 1, wherein: the wall thickness of the sleeve (2) is 10-15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921086591.3U CN210232901U (en) | 2019-07-11 | 2019-07-11 | Disassembling tool for fastening bolt of engine cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921086591.3U CN210232901U (en) | 2019-07-11 | 2019-07-11 | Disassembling tool for fastening bolt of engine cylinder cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210232901U true CN210232901U (en) | 2020-04-03 |
Family
ID=69990766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921086591.3U Active CN210232901U (en) | 2019-07-11 | 2019-07-11 | Disassembling tool for fastening bolt of engine cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210232901U (en) |
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2019
- 2019-07-11 CN CN201921086591.3U patent/CN210232901U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231227 Address after: Room 1401, 14th Floor, Unit 1, Building 1, No. 467 Xinyu Road, High tech Zone, Chengdu City, Sichuan Province, 610000 Patentee after: Sichuan Huaqi Weir Automation Technology Co.,Ltd. Address before: 620010 No.7, Section 2, Tengfei Avenue, Shigao Economic Development Zone, Renshou County, Meishan City, Sichuan Province Patentee before: Sichuan Huayuan Aerodynamic Power Co.,Ltd. |
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| TR01 | Transfer of patent right |