CN116214445A - Brake return spring dismounting tool and use method thereof - Google Patents

Brake return spring dismounting tool and use method thereof Download PDF

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Publication number
CN116214445A
CN116214445A CN202211590904.5A CN202211590904A CN116214445A CN 116214445 A CN116214445 A CN 116214445A CN 202211590904 A CN202211590904 A CN 202211590904A CN 116214445 A CN116214445 A CN 116214445A
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CN
China
Prior art keywords
hole
spring
lever
nail
tool
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Pending
Application number
CN202211590904.5A
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Chinese (zh)
Inventor
董哲
董志明
宋黎明
杨哲
兰天辉
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Inner Mongolia North Hauler JSCL
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Inner Mongolia North Hauler JSCL
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Publication date
Application filed by Inner Mongolia North Hauler JSCL filed Critical Inner Mongolia North Hauler JSCL
Priority to CN202211590904.5A priority Critical patent/CN116214445A/en
Publication of CN116214445A publication Critical patent/CN116214445A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
    • B25B27/302—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs coil springs other than torsion coil springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
    • B25B27/302—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs coil springs other than torsion coil springs
    • B25B27/304—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs coil springs other than torsion coil springs by compressing coil springs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

The invention discloses a brake return spring dismounting tool, which comprises: lever mechanism, tool screw, connecting bolt, lever mechanism includes: the device comprises a base, a force application lever and a nail puller, wherein the top of the base is provided with a hinge lug which is provided with a hinge through hole; the front end of the force application lever is provided with a first lever through hole and a second lever through hole; the nail puller is connected to the front part of the base, the upper part is provided with a nail puller through hole, and the lower part is provided with a nail puller groove; the connecting bolt passes through the second lever through hole and the hinged through hole and is fixed by a nut, and the connecting bolt passes through the first lever through hole and the nail puller through hole and is fixed by a nut; the lower part of the tool screw is provided with external threads, the top is provided with an end cap, the tool screw is positioned in the nail-lifting groove, and the end cap is positioned on the upper part of the nail-lifting groove. The invention also discloses a using method of the brake return spring dismounting tool. The invention has good spring dismounting or mounting effect, can bear larger spring force, and has high spring dismounting or mounting efficiency.

Description

Brake return spring dismounting tool and use method thereof
Technical Field
The invention belongs to maintenance tools of mining vehicles, and particularly relates to a brake return spring dismounting tool and a using method thereof.
Background
The braking principle of the off-highway mining dump truck brake is generally divided into two types, namely hydraulic implementation, spring release, spring implementation and hydraulic release. In either braking type, a return spring is provided for applying the brakes when the mining vehicle is parked or releasing the brakes as needed when the mining vehicle is traveling normally.
The spring of the brake is mostly installed in the piston housing of the piston, and a special pin is penetrated in the spring body of the spring for realizing the installation and fixation of the spring. The special pin is tensioned and locked in the groove of the piston shell under the action of the pre-tightening force of the spring. Because the elasticity of the spring is stronger, the pretightening force of the spring is larger, and the spring is very difficult to assemble and disassemble from the groove of the piston shell.
Disclosure of Invention
The invention aims to provide a brake return spring dismounting tool and a using method thereof, which have good spring dismounting or mounting effect, can bear larger spring force and have high spring dismounting or mounting efficiency.
In order to achieve the above purpose, the technical solution adopted by the invention is as follows:
brake return spring assembly and disassembly tools includes: lever mechanism, tool screw, connecting bolt, lever mechanism includes: the device comprises a base, a force application lever and a nail puller, wherein the top of the base is provided with a hinge lug which is provided with a hinge through hole; the front end of the force application lever is provided with a first lever through hole and a second lever through hole; the nail puller is connected to the front part of the base, the upper part is provided with a nail puller through hole, and the lower part is provided with a nail puller groove; the connecting bolt penetrates through the second lever through hole and the hinge through hole and is fixed by a nut, and the force application lever is hinged with the hinge lug; the connecting bolt penetrates through the first lever through hole and the nail puller through hole and is fixed by a nut, and the force application lever is hinged with the nail puller; the lower part of the tool screw is provided with external threads, the top is provided with an end cap, the tool screw is positioned in the nail-lifting groove, and the end cap is positioned on the upper part of the nail-lifting groove.
Further, the first lever through hole is located at the front of the second lever through hole.
Further, the bottom of base is provided with the backup pad, and articulated ear is provided with two otic placodes, and articulated through-hole sets up respectively on two otic placodes, and the second lever through-hole is located between two articulated through-holes.
Further, the nail puller includes: the bottom of two risers is connected at the top of bottom plate respectively, and two nail puller through-holes set up respectively in the upper portion of two risers, and the nail-lifting groove sets up on the bottom plate and is located between two risers, and the bottom plate is connected with the backup pad, and the nail-lifting groove is located the backup pad front portion.
Further, the first lever through hole is located between the two staple remover through holes.
Further, the opening of the nail nipping groove is positioned at the front end of the bottom plate.
Further, a hexagonal mounting counter bore is formed in the top of the end cap.
The application method of the brake return spring dismounting tool comprises the following steps:
when the spring is required to be installed in the piston shell groove of the piston, the spring is sleeved on the spring special pin, the spring special pin and the spring are inserted from the bottom opening of the piston shell groove, the top of the spring is propped against the end part of the piston step hole at the upper part of the piston shell groove, the spring special pin extends out from the step hole into the shell hole of the piston shell, and the shell step hole is arranged in the shell hole;
the tool screw is connected to a threaded blind hole at the top of the special pin for the spring, the lever mechanism is placed in the shell Kong Cebu, the tool screw is arranged in a nail-lifting groove of the nail-lifting device, and the end cap is positioned at the upper part of the nail-lifting groove; pressing down the force application lever, and pulling up the special pin of the spring by the nail puller, wherein the retaining step at the bottom of the special pin of the spring compresses the spring, and the retaining pin is arranged in the retaining pin hole when the retaining pin hole of the special pin of the spring moves to the upper part of the shell hole; the force application lever is loosened, the lever mechanism is removed, the special pin for the spring moves downwards, the stop pin is clamped at the top of the stepped hole of the shell, the tool screw is dismounted, the installation of the spring is completed, and the spring is in a pre-tightening state.
Preferably, when the spring is required to be removed from the piston housing recess of the piston, the tool screw is attached to the threaded blind hole and the lever mechanism is placed in the housing Kong Cebu with the tool screw installed in the cocking slot and the end cap positioned on top of the cocking slot; pressing down the force application lever, the nail puller pulls up the special pin of the spring upwards, the stop step compresses the spring, and the stop pin is pulled out from the stop pin hole after the stop pin moves to the upper part of the shell hole; and releasing the force application lever, taking down the special pin for the spring and the spring from the groove of the piston shell, and detaching the spring and the tool screw to complete the detachment of the spring.
Preferably, a hex wrench is used to insert into a hex mounting counterbore at the top of the end cap and a tool screw is rotated to engage the threaded blind bore.
The technical effects of the invention include:
1. the invention has simple structure, strong practicability and ingenious structure.
2. The invention has good spring dismounting effect and can bear larger spring force.
3. The invention has the advantages of convenient use, strong operability and practicability, and the like, is convenient for disassembling and assembling the piston and the spring in the piston shell, has high disassembling and assembling efficiency of the spring, and can save a great deal of manpower.
Drawings
FIG. 1 is a schematic view of a brake return spring assembly and disassembly tool according to the present invention;
FIG. 2 is an enlarged view of FIG. 1 at I;
FIG. 3 is a schematic view of the structure of the spring-specific pin of the present invention;
FIG. 4 is a view of the brake return spring assembly and disassembly tool of the present invention in use;
fig. 5 is a cross-sectional view taken along A-A in fig. 4.
Detailed Description
The following description fully illustrates the specific embodiments of the invention to enable those skilled in the art to practice and reproduce it.
FIG. 1 is a schematic view of a brake return spring assembly and disassembly tool according to the present invention; as shown in fig. 2, an enlarged view at I in fig. 1; as shown in fig. 3, the spring-dedicated pin 2 according to the present invention is schematically structured.
Brake return spring assembly and disassembly tools includes: a lever mechanism 1, a tool screw 4 and a connecting bolt 5. The lever mechanism 1 includes: the device comprises a base 11, a force application lever 12 and a nail puller 13, wherein a hinge lug 112 is arranged at the top of the base 11, and a hinge through hole is formed in the hinge lug 112; the front end of the force application lever 12 is provided with a first lever through hole and a second lever through hole; the nail puller 13 is connected to the front part of the base 11, the upper part is provided with a nail puller through hole, and the lower part is provided with a nail puller groove 14; the connecting bolt 5 passes through the second lever through hole and the hinge through hole and is fixed by a nut, so that the force application lever 12 is hinged with the hinge lug 112; the connecting bolt 5 passes through the first lever through hole and the nail puller through hole and is fixed by a nut, and the force application lever 12 is hinged with the nail puller 13; the lower part of the tool screw 4 is provided with an external thread, the top part is provided with an end cap 41, the tool screw 4 is positioned in the nail-lifting groove 14, and the end cap 41 is positioned at the upper part of the nail-lifting groove 14.
The force arm of the force application lever 12 is long, and can easily bear large spring force. The staple groove 14 is used to engage the end cap 41 of the tool screw 4. The force application lever 12 has a first lever through hole located in front of a second lever through hole.
The bottom of the base 11 is provided with a support plate 111 for reducing the pressure of the lower portion of the base 11 against the support object. The top of the end cap 41 is provided with a hex mounting counterbore 42.
The hinge lug 112 is provided with two lug plates, the hinge through holes are respectively arranged on the two lug plates, and the second lever through hole is positioned between the two hinge through holes.
The nail puller 13 includes: the bottom plate, riser, the top at the bottom of bottom plate is connected respectively to the bottom of two risers, and two nail puller through-holes set up respectively in the upper portion of two risers, and nail nipping groove 14 sets up on the bottom plate and is located between two risers, and the bottom plate is connected with backup pad 111, and nail nipping groove 14 is located the backup pad 111 front portion. The first lever through hole is located between the two staple remover through holes. The openings of the staple pockets 14 are located at the front end of the bottom plate.
When the spring is attached and detached, the stopper pin 3 needs to be mounted in the stopper pin hole 23 or removed from the stopper pin hole 23. The bottom of the spring special pin 2 is provided with a stop step 22, the upper side wall is provided with a stop pin hole 23, a threaded blind hole 21 is formed in the top of the spring special pin 2 for being matched with a brake return spring dismounting tool, and the lower part of the tool screw 4 is connected to the threaded blind hole 21 in a threaded mode. The retaining step 22 is used for limiting the axial movement of the spring 5, and the retaining pin 3 is used for bearing the return pretightening force of the spring 5; the blind threaded bore 21 is used for mounting the tool screw 4 for use by the nail puller 13.
FIG. 4 is a view showing the state of use of the brake return spring removing tool of the present invention; as shown in fig. 5, is a cross-sectional view taken along the direction A-A in fig. 4.
The application method of the brake return spring dismounting tool comprises the following specific steps:
step 1: when the spring 5 is required to be installed in the piston housing groove 71 of the piston 7, the spring 5 is sleeved on the spring special pin 2, the spring special pin 2 and the spring 5 are inserted from the bottom opening of the piston housing groove 71, the top of the spring 5 is abutted against the end part of the piston step hole at the upper part of the piston housing groove 71, the spring special pin 2 extends out of the step hole into the housing hole 61 of the piston housing 6, and the housing step hole is arranged in the housing hole 61;
step 2: the tool screw 4 is connected to the threaded blind hole 21 at the top of the spring special pin 2, the lever mechanism 1 is placed in the shell Kong Cebu, the tool screw 4 is installed in the nail-lifting groove 14 of the nail-lifting device 13, and the end cap 41 is positioned at the upper part of the nail-lifting groove 14; pressing the force application lever 12, the nail puller 13 pulls up the spring special pin 2, the stop step 22 at the bottom of the spring special pin 2 compresses the spring 5, and the stop pin 3 is installed in the stop pin hole 23 when the stop pin hole 23 of the spring special pin 2 moves to the upper part of the shell hole 61; releasing the force application lever 12, removing the lever mechanism 1, moving the special spring pin 2 downwards, clamping the stop pin 3 at the top of the step hole of the shell, detaching the tool screw 4, completing the installation of the spring 5, and ensuring that the spring 5 is in a pre-tightening state;
step 3: when the spring 5 is required to be detached from the piston housing groove 71 of the piston 7, the tool screw 4 is connected to the threaded blind hole 21, the lever mechanism 1 is placed in the housing Kong Cebu, the tool screw 4 is mounted in the nail-lifting groove 14, and the end cap 41 is positioned at the upper part of the nail-lifting groove 14;
step 4: pressing the force applying lever 12, the nail puller 13 pulls up the spring special pin 2, the stop step 22 compresses the spring 5, and the stop pin 3 is pulled out from the stop pin hole 23 when the stop pin 3 moves to the upper part of the shell hole 61; releasing the force application lever 12, removing the spring-dedicated pin 2 and the spring 5 from the piston housing groove 71, and removing the spring 5 and the tool screw 4 to complete the removal of the spring 5.
The terminology used herein is for the purpose of description and illustration only and is not intended to be limiting. As the present invention may be embodied in several forms without departing from the spirit or essential attributes thereof, it should be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalences of such metes and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A brake return spring removal tool, comprising: lever mechanism, tool screw, connecting bolt, lever mechanism includes: the device comprises a base, a force application lever and a nail puller, wherein the top of the base is provided with a hinge lug which is provided with a hinge through hole; the front end of the force application lever is provided with a first lever through hole and a second lever through hole; the nail puller is connected to the front part of the base, the upper part is provided with a nail puller through hole, and the lower part is provided with a nail puller groove; the connecting bolt penetrates through the second lever through hole and the hinge through hole and is fixed by a nut, and the force application lever is hinged with the hinge lug; the connecting bolt penetrates through the first lever through hole and the nail puller through hole and is fixed by a nut, and the force application lever is hinged with the nail puller; the lower part of the tool screw is provided with external threads, the top is provided with an end cap, the tool screw is positioned in the nail-lifting groove, and the end cap is positioned on the upper part of the nail-lifting groove.
2. The brake return spring removal tool of claim 1 wherein the first lever through hole is located forward of the second lever through hole.
3. The brake return spring removing and installing tool according to claim 1, wherein the bottom of the base is provided with a support plate, the hinge lug is provided with two lug plates, the hinge through holes are respectively provided on the two lug plates, and the second lever through hole is located between the two hinge through holes.
4. A brake return spring removal tool as defined in claim 3, wherein the staple remover comprises: the bottom of two risers is connected at the top of bottom plate respectively, and two nail puller through-holes set up respectively in the upper portion of two risers, and the nail-lifting groove sets up on the bottom plate and is located between two risers, and the bottom plate is connected with the backup pad, and the nail-lifting groove is located the backup pad front portion.
5. The brake return spring assembly and disassembly tool of claim 4 wherein the first lever through hole is located between the two staple remover through holes.
6. The brake return spring assembly and disassembly tool of claim 4 wherein the opening of the nail nipping groove is located at the front end of the base plate.
7. The brake return spring removal tool of claim 1 wherein the top of the end cap is provided with a hex mounting counterbore.
8. The method of using a brake return spring removal tool as claimed in any one of claims 1 to 7, comprising:
when the spring is required to be installed in the piston shell groove of the piston, the spring is sleeved on the spring special pin, the spring special pin and the spring are inserted from the bottom opening of the piston shell groove, the top of the spring is propped against the end part of the piston step hole at the upper part of the piston shell groove, the spring special pin extends out from the step hole into the shell hole of the piston shell, and the shell step hole is arranged in the shell hole;
the tool screw is connected to a threaded blind hole at the top of the special pin for the spring, the lever mechanism is placed in the shell Kong Cebu, the tool screw is arranged in a nail-lifting groove of the nail-lifting device, and the end cap is positioned at the upper part of the nail-lifting groove; pressing down the force application lever, and pulling up the special pin of the spring by the nail puller, wherein the retaining step at the bottom of the special pin of the spring compresses the spring, and the retaining pin is arranged in the retaining pin hole when the retaining pin hole of the special pin of the spring moves to the upper part of the shell hole; the force application lever is loosened, the lever mechanism is removed, the special pin for the spring moves downwards, the stop pin is clamped at the top of the stepped hole of the shell, the tool screw is dismounted, the installation of the spring is completed, and the spring is in a pre-tightening state.
9. The method of claim 8, wherein when the spring is to be removed from the piston housing recess of the piston, the tool screw is attached to the blind threaded hole, the lever mechanism is placed in the housing Kong Cebu with the tool screw installed in the cocking slot, and the end cap is positioned above the cocking slot; pressing down the force application lever, the nail puller pulls up the special pin of the spring upwards, the stop step compresses the spring, and the stop pin is pulled out from the stop pin hole after the stop pin moves to the upper part of the shell hole; and releasing the force application lever, taking down the special pin for the spring and the spring from the groove of the piston shell, and detaching the spring and the tool screw to complete the detachment of the spring.
10. The method of claim 8, wherein a hex wrench is used to insert a hex mounting counterbore in the top of the end cap and a tool screw is rotated to engage the blind threaded hole.
CN202211590904.5A 2022-12-12 2022-12-12 Brake return spring dismounting tool and use method thereof Pending CN116214445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211590904.5A CN116214445A (en) 2022-12-12 2022-12-12 Brake return spring dismounting tool and use method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211590904.5A CN116214445A (en) 2022-12-12 2022-12-12 Brake return spring dismounting tool and use method thereof

Publications (1)

Publication Number Publication Date
CN116214445A true CN116214445A (en) 2023-06-06

Family

ID=86577512

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211590904.5A Pending CN116214445A (en) 2022-12-12 2022-12-12 Brake return spring dismounting tool and use method thereof

Country Status (1)

Country Link
CN (1) CN116214445A (en)

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