CN110202522B - Disassembling and assembling tool and method for detachable interference fit anti-side-rolling torsion bar - Google Patents
Disassembling and assembling tool and method for detachable interference fit anti-side-rolling torsion bar Download PDFInfo
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- CN110202522B CN110202522B CN201910459913.2A CN201910459913A CN110202522B CN 110202522 B CN110202522 B CN 110202522B CN 201910459913 A CN201910459913 A CN 201910459913A CN 110202522 B CN110202522 B CN 110202522B
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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
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven
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Abstract
The invention discloses a disassembly and assembly tool and a disassembly and assembly method for a detachable interference fit anti-side rolling torsion bar, wherein the disassembly and assembly tool comprises a support and a bottom plate arranged on the support; the disassembly and assembly tool further comprises a pressure output assembly, a supporting seat assembly, a baffle plate assembly, a torsion bar shaft pressure head assembly and a torsion arm pressure head assembly; the pressure output assembly is arranged at the left end part of the upper surface of the bottom plate, the supporting seat assembly is arranged at the middle part of the upper surface of the bottom plate, and the baffle plate assembly is arranged at the right end part of the upper surface of the bottom plate. Fixing or placing a torsion bar shaft by adopting a supporting seat assembly; the ultra-high pressure power supply device is used for providing hydraulic pressure and transmitting the hydraulic pressure to the inner hole of the torsion arm through the high pressure oil pipe, and meanwhile, the pressure output assembly is used for applying axial pressure to the torsion arm or the torsion bar shaft, so that the torsion arm and the torsion bar shaft are assembled or disassembled. The invention does not need to fasten fastening fittings, does not need to carry out thermal assembly or cooling treatment, does not need to heat the torsion arm by an oven, does not need to carry out cooling treatment after assembly, and improves the assembly efficiency.
Description
Technical Field
The invention relates to the technical field of disassembly and assembly of an anti-side-rolling torsion bar.
Background
At present, the most used assembly method for the conical interference fit anti-rolling torsion bar is mainly a hot assembly method. The thermal assembly scheme tool mainly comprises an oven, an assembly platform, a positioning device and a circumferential positioning block. The oven is used for heating the torsion arm, and the positioning device is used for positioning the torsion arm in the assembling process. The assembling process comprises the following steps: putting the torsion arm into an oven for heating treatment, and fixing the position of the torsion bar shaft; after the torsion arms are heated to the required temperature, the torsion arms are taken out, the torsion arms are assembled on the torsion rod shaft, and the central distance between the torsion arms and the height difference of the torsion arms are ensured under the action of the positioning device and the circumferential positioning blocks; and after the assembly is finished, the torsion arm is cooled in air.
The above assembly solution has the following disadvantages: need heat the torsion arm, the assembly back torsion arm needs cooling treatment certain time, and can't dismantle after the assembly, and the accessory is changed inconveniently, and the torsion arm is relatively poor with the regional size detectability of torsion bar axle cooperation, the maintenance of the follow-up anti side roll torsion bar of not being convenient for.
In the prior art, the patent application with application number CN201711052700.5 discloses an automatic positioning and assembling device and method for an anti-rolling torsion bar assembly. The automatic positioning and assembling equipment for the anti-rolling torsion bar assembly comprises a rack, a table board displacement mechanism, an automatic clamping device, an automatic centering device, a control system, an assembly limiting device, a circumferential positioning block and a manipulator installed on the rack. Transferring a torsion bar shaft to a preset position by using a manipulator; arranging an automatic centering device to automatically center the torsion bar shaft; arranging an automatic clamping device to automatically clamp and position the torsion bar shaft; an assembly limiting device is arranged to automatically position the torsion arm assembly limiting stop so as to assemble the torsion arm to the torsion bar shaft. The utility model with the application number of CN201320317835.0 discloses a subway anti-rolling torsion bar connecting rod hot-fitting tool, which comprises a workbench, wherein a left panel and a right panel which are used for supporting a first torsion arm and a second torsion arm, a supporting block which is used for supporting a torsion bar and a driving device which is used for pushing the torsion arm to be assembled into the torsion bar are correspondingly arranged on the workbench; the supporting block is of a concave structure; a herringbone pressing plate for fixing the torsion bar is correspondingly arranged above the supporting block; the supporting block and the two ends of the pressing plate are fastened through bolts; the driving device is a cylinder, the free end of a piston rod of the cylinder is provided with a positioning push block matched with the hole position of the torsion arm and the end part of the torsion bar, and the piston rod of the cylinder and the hole position of the torsion arm and the torsion bar are arranged in a straight line.
Disclosure of Invention
The invention provides a disassembling and assembling tool and a disassembling and assembling method for a detachable interference fit anti-side-rolling torsion bar.
The technical scheme of the invention is as follows: a disassembly and assembly tool for a detachable interference fit anti-side-rolling torsion bar comprises a torsion bar shaft and a torsion arm; the disassembly and assembly tool for the detachable interference fit anti-side rolling torsion bar comprises a support and a bottom plate arranged on the support; the disassembly and assembly tool for the detachable interference fit anti-rolling torsion bar further comprises a pressure output assembly, a supporting seat assembly, a baffle plate assembly, a torsion bar shaft pressure head assembly and a torsion arm pressure head assembly; the pressure output assembly is arranged at the left end part of the upper surface of the bottom plate, the supporting seat assembly is arranged in the middle of the upper surface of the bottom plate, and the baffle plate assembly is arranged at the right end part of the upper surface of the bottom plate; the pressure output assembly comprises a torsion arm baffle plate capable of blocking a torsion arm, and the baffle plate assembly comprises a torsion rod shaft top block capable of blocking a torsion rod shaft and capable of being detached;
when the assembly is used for a detachable interference fit anti-side rolling torsion bar, the torsion bar shaft is fixed on the support seat assembly, the baffle plate assembly is blocked on the right end surface of the torsion bar shaft, and the torsion arm pressure head assembly is connected between the pressure output assembly and the torsion arm;
when the detachable interference fit anti-side-rolling torsion bar is detached, the lower torsion bar shaft jacking block is detached, the torsion bar shaft is placed on the support seat assembly and can axially move, the torsion arm adjacent to the pressure output assembly is located on the left side of the torsion arm baffle, and the torsion bar shaft pressure head assembly is connected between the pressure output assembly and the torsion bar shaft.
The disassembly and assembly tool for the detachable interference fit anti-side rolling torsion bar further comprises a height positioning block for circumferentially positioning the torsion arm, and the height positioning block is arranged on the bottom plate;
the upper surface of the bottom plate is provided with a groove for positioning and adjusting the positions of the pressure output assembly, the supporting seat assembly and the baffle plate assembly; more than three T-shaped grooves are formed in the upper surface of the bottom plate;
the disassembly and assembly tool for the detachable interference fit anti-rolling torsion bar further comprises a hydraulic manual pump or a hydraulic station for providing axial pressure, and the hydraulic manual pump or the hydraulic station is connected with the pressure output assembly.
The disassembly and assembly tool for the detachable interference fit anti-rolling torsion bar further comprises a positioning pin for positioning the baffle plate assembly and the pressure output assembly, and a T-shaped bolt group for fixing the pressure output assembly, the support seat assembly and the height positioning block on the bottom plate; the torsion arm comprises a first torsion arm and a second torsion arm which are respectively positioned at two ends of the torsion bar shaft, the number of the height positioning blocks is two, and the two height positioning blocks are respectively used for circumferentially positioning the first torsion arm and the second torsion arm.
The pressure output assembly is fixed on the bottom plate through a T-shaped bolt group; the pressure output assembly also comprises a first reinforcing rib plate, a first ejector rod guide plate, an ejector rod, a first cylindrical pin, a first baffle plate, a first hydraulic jack cushion block, a first sliding plate and a first hydraulic jack with a pressure sensor; the torsion arm baffle is arranged near the right end of the first sliding plate, and a first reinforcing rib plate is arranged between the right side surface of the torsion arm baffle and the first sliding plate; the hydraulic jack is installed at the left part of the first sliding plate through a hydraulic jack cushion block; the left end of the ejector rod is connected with a hydraulic jack, and the ejector rod is installed on the first sliding plate through an ejector rod guide plate; a first baffle is arranged on the left side of the hydraulic jack; the torsion arm baffle, the baffle I and the ejector rod guide plate are arranged on the sliding plate I through a cylindrical pin I; the right end of the ejector rod is connected with a torsion arm pressure head assembly, and the first sliding plate is fixed on the bottom plate through a T-shaped bolt group.
The disassembly and assembly tool for the detachable interference fit anti-side-rolling torsion bar further comprises an ultrahigh pressure power supply facility, a high pressure oil pipe and a high pressure oil pump quick joint, wherein the ultrahigh pressure power supply facility is an ultrahigh pressure manual pump or a hydraulic station; the torsion arm is provided with a high-pressure oil injection port, and the ultrahigh-pressure power supply facility is connected with the high-pressure oil injection port of the torsion arm through a high-pressure oil pipe and a high-pressure oil pump quick joint.
The torsion bar shaft pressure head assembly comprises a torsion bar shaft pressure head and a first bushing; when the detachable interference fit anti-side rolling torsion bar is disassembled, the torsion bar shaft pressure head assembly is arranged at the end part of the torsion bar shaft;
the torsion arm pressure head assembly comprises a torsion arm pressure head and a bushing II; one end of the torsion arm pressure head is provided with a hole, and the end surface in the hole is used for positioning the press-mounting position of the torsion arm; the torsion arm pressure head is cylindrical, and an observation hole is formed in the outer circumferential surface.
The supporting seat assembly comprises a supporting seat, a first bolt, an upper cover plate, a nylon block, a screw, a washer, a locking bolt, a locking nut and a second bolt; the support seat is arranged on the bottom plate through a T-shaped bolt group; one end of the upper cover plate is hinged on the supporting seat through a first bolt; after the torsion bar shaft is placed on the supporting seat, the upper cover plate can be locked on the supporting seat through the locking bolt and the locking nut, so that the torsion bar shaft is fixed;
nylon blocks are arranged between the torsion bar shaft and the supporting seat and between the torsion bar shaft and the upper cover plate, the nylon blocks comprise an upper nylon block and a lower nylon block, the upper nylon block is connected with the upper cover plate through a screw and a gasket, and the lower nylon block is connected with the supporting seat through a screw and a gasket; the nylon block is in a fan shape with an angle less than 180 degrees; the bolt II is connected with the locking bolt and the supporting seat; the number of the supporting seat assemblies is more than two.
The baffle plate assembly comprises a sliding plate II, a reinforcing rib plate II, a torsion bar shaft top block, a baffle plate II and a cylindrical pin II; the baffle II is connected to the left end of the upper surface of the sliding plate II through a cylindrical pin II; the upper part of the baffle II is provided with a through hole; the torsion bar shaft top block is in a horizontal cylindrical shape, the diameter of the left part of the torsion bar shaft top block is larger than that of the right part of the torsion bar shaft top block, and the right part of the torsion bar shaft top block is detachably connected to the through hole of the baffle; when the detachable interference fit anti-side rolling torsion bar is assembled, the torsion bar shaft top block is blocked at the right end of the torsion bar shaft; the second sliding plate is fixedly connected with the bottom plate through a T-shaped bolt group.
A dismounting method for a detachable interference fit anti-side rolling torsion bar adopts a support seat component to fix or place a torsion bar shaft; the ultra-high pressure power supply device is used for providing hydraulic pressure and transmitting the hydraulic pressure to the inner hole of the torsion arm through the high-pressure oil pipe, the inner diameter of the inner hole of the torsion arm is expanded, meanwhile, the pressure output assembly is used for applying axial pressure to the torsion arm or the torsion bar shaft to push the torsion arm or the torsion bar shaft to move axially, and therefore the torsion arm and the torsion bar shaft are assembled or disassembled.
Assembling and disassembling by adopting the assembling and disassembling tool for the detachable interference fit anti-side rolling torsion bar; the disassembly and assembly method for the detachable interference fit anti-rolling torsion bar comprises an assembly method and a disassembly method;
the assembling method comprises the following steps:
the first step is as follows: fixing the baffle plate assembly, the support seat assembly and the height positioning block on the bottom plate, horizontally placing the torsion bar shaft on a dismounting tool, and adjusting and fixing the pressure output assembly;
the second step is that: taking down the torsion bar shaft, sleeving the torsion arm on the torsion bar shaft, lightly knocking one end face of the torsion arm by using a copper bar to pre-assemble one end of the torsion bar shaft and the first torsion arm, hoisting the torsion bar shaft and the first torsion arm to a disassembling and assembling tool to be horizontally placed, and enabling the other end of the torsion bar shaft to prop against a torsion bar shaft jacking block of the baffle plate assembly;
the third step: placing a torsion arm pressure head assembly at the end part of the torsion bar shaft, adjusting an observation hole in the torsion arm pressure head assembly to a position convenient for observation, and circumferentially positioning the first torsion arm through a height positioning block;
the fourth step: covering the upper cover plate, and screwing the locking nut to fix the torsion bar shaft;
the fifth step: installing a high-pressure oil pump quick connector on a high-pressure oil injection port of the first torsion arm, fastening and connecting a high-pressure oil pipe;
and a sixth step: starting the hydraulic manual pump, starting a hydraulic jack with a pressure sensor to work, and enabling the ejector rod to axially press the torsion arm pressure head assembly to provide axial pressure; the ultrahigh pressure manual pump works to gradually increase the hydraulic pressure to a preset value; whether the torsion arm is pressed in place or not is visually observed through an observation hole of the torsion arm pressure head assembly, and when the end face of the inner hole of the torsion arm pressure head is pressed to the end face of the torsion bar shaft, the first torsion arm is pressed in place;
the seventh step: after the first torsion arm is pressed in place, the ultrahigh pressure manual pump releases pressure, and the axial pressure is kept for a preset time;
eighth step: after the axial pressure maintaining time reaches the preset time, releasing the pressure by axial pressure, and disassembling the high-pressure oil pipe and the high-pressure oil pump quick connector;
the ninth step: turning around the torsion bar shaft, assembling a second torsion arm at the other end of the torsion bar shaft according to the same method, and circumferentially positioning the first torsion arm and the second torsion arm by utilizing positioning blocks with the heights at the two ends;
the tenth step: and (5) finishing assembly.
The disassembling method comprises the following steps:
the first step is as follows: disassembling a top block of the torsion bar shaft, arranging an anti-side-rolling torsion bar on a disassembling tool, arranging a torsion bar shaft pressure head assembly at the end part of one end of the torsion bar shaft, tightly attaching the inner side of a torsion arm I at one end of the anti-side-rolling torsion bar to a torsion arm baffle and arranging the torsion arm I on a height positioning block;
the second step is that: covering an upper cover plate, screwing a locking nut, placing an anti-side-rolling torsion bar well, and paying attention to enable the torsion bar shaft to move axially;
the third step: installing a high-pressure oil pump quick connector on a high-pressure oil injection port of the first torsion arm, fastening and connecting a high-pressure oil pipe;
the fourth step: contacting the ejector rod with the end surface of the torsion bar shaft pressure head assembly, starting a hydraulic manual pump, starting a hydraulic jack with a pressure sensor to work, and applying axial pressure to the torsion bar shaft;
the fifth step: the ultrahigh pressure manual pump starts to work, the pressure is increased to a required value and is kept, and if the first torsion arm is not automatically loosened, the pressure is continuously increased until the first torsion arm can be loosened from the torsion bar shaft;
and a sixth step: after the torsion arm is loosened, the high-pressure oil pump quick connector and the high-pressure oil pipe are disassembled;
the seventh step: turning around the torsion bar shaft, and disassembling a second torsion arm at the other end according to the same method;
eighth step: and (5) completing the disassembly.
According to the invention, high-precision assembly and disassembly between the torsion arm and the torsion bar shaft are realized by adopting the action of high-pressure oil, the fastening of fastening accessories is not needed, the thermal assembly or cooling treatment is not needed, the torsion arm is not needed to be heated by an oven, the cooling treatment is not needed after assembly, and the assembly efficiency is improved; repeated and reliable assembling and disassembling of the torsion bar shaft and the torsion arm can be realized, the probability of damaging a joint surface is low, and the joint surface of the torsion bar shaft and the torsion arm is not influenced; the interference magnitude can be accurately adjusted by controlling the displacement; the size detection and the magnetic powder inspection of the matching area can be realized aiming at the follow-up maintenance of the torsion bar system, the size detectability of the matching area is better, and the later-stage product repairability is better; meanwhile, the center distance and the height difference of the torsion bar assembly (anti-side rolling torsion bar) can be controlled with high precision, and the quality of the torsion bar is ensured.
Drawings
FIG. 1 is a schematic structural view of a side-rolling torsion bar with interference fit of conical surfaces;
FIG. 2 is a schematic view of the oil pressure assembly;
FIG. 3 is a schematic structural diagram of a disassembling and assembling tool for a detachable interference fit anti-rolling torsion bar;
FIG. 4-1 is a schematic view of a pressure output assembly;
FIG. 4-2 is a schematic sectional view taken along line A-A in FIG. 4-1;
FIG. 5 is a schematic view of a torsion arm ram assembly;
FIG. 6 is a cross-sectional view of the torsion arm ram assembly;
FIG. 7 is a partial cross-sectional view of the support base assembly;
FIG. 8 is a cross-sectional view of a nylon block;
FIG. 9-1 is a schematic view of a baffle assembly construction;
FIG. 9-2 is a schematic sectional view taken along line B-B in FIG. 9-1;
FIG. 10 is a schematic view of a torsion bar shaft head assembly configuration;
description of reference numerals:
a first torsion arm 21, a torsion bar shaft 22, a second torsion arm 23 and a high-pressure oil injection port 24;
the device comprises a support 110, a height positioning block 120, a bottom plate 130, a hydraulic manual pump 140, a pressure output assembly 150, an ultrahigh pressure manual pump 160, a torsion bar shaft pressure head assembly 170, a torsion arm pressure head assembly 180, a high-pressure oil pipe 190, a high-pressure oil pump quick joint 200, a support seat assembly 210, a baffle plate assembly 220, a positioning pin 230 and a T-shaped bolt set 240;
the device comprises a first reinforcing rib plate 151, a torsion arm baffle 152, a push rod guide plate 153, a push rod 154, a first cylindrical pin 155, a hydraulic jack 156 with a pressure sensor, a first baffle 157, a hydraulic jack cushion block 158 and a first sliding plate 159;
an ultra-high pressure manual pump 160;
a torsion bar shaft ram 171, a bushing one 172;
a torsion arm ram 181 and a bushing II 182;
the support base 211, a first bolt 212, an upper cover plate 213, a nylon block 214, a screw 215, a washer 216, a locking bolt 217, a locking nut 218 and a second bolt 219;
the second sliding plate 222, the second reinforcing rib plate 221, the torsion bar shaft top block 223, the second baffle plate 224 and the second cylindrical pin 225.
Detailed Description
Referring to fig. 1 to 10, a disassembling and assembling tool for a detachable interference fit anti-side-rolling torsion bar is used for realizing high-precision assembling and disassembling of a torsion arm and a torsion bar shaft of a conical interference fit anti-side-rolling torsion bar device, and can realize reliable assembling and disassembling repeatedly. The hydraulic high-pressure oil pump quick connector comprises a support 110, a height positioning block 120, a bottom plate 130, a hydraulic manual pump 140, a pressure output assembly 150, an ultrahigh-pressure manual pump 160, a torsion bar shaft pressure head assembly 170, a torsion arm pressure head assembly 180, a high-pressure oil pipe 190, a high-pressure oil pump quick connector 200, a support seat assembly 210, a baffle plate assembly 220, a positioning pin 230 and a T-shaped bolt set 240. The anti-rolling torsion bar (namely, the anti-rolling torsion bar used for the detachable interference fit) comprises a torsion arm and a torsion bar shaft 22, wherein the torsion arm comprises a first torsion arm 21 and a second torsion arm 23, and a high-pressure oil injection port 24 is arranged on the torsion arm.
And the bracket 110 is used for supporting the whole set of disassembling and assembling tool.
And a height positioning block 120 for circumferentially positioning the first torsion arm 21 and the second torsion arm 23. The number of the height positioning blocks can be 2, and the height positioning blocks are respectively used for circumferentially positioning the first torsion arm 21 and the second torsion arm 23.
And the bottom plate 130 is arranged on the bracket 110 and used as a working platform for disassembling and assembling the anti-rolling torsion bar. The upper surface of the bottom plate has grooves for positioning and adjusting the positions of the pressure output assembly 150, the support assembly 210 and the baffle assembly 220. The upper surface of the bottom plate is provided with T-shaped grooves, and the number of the T-shaped grooves can be 3 or more than 3.
A hydraulic manual pump 140 for providing a power source, providing an axial pressure, and pushing the torsion arm ram assembly 180 to move axially; the hydraulic hand pump 140 may also be a hydraulic station.
The pressure output assembly 150 mainly comprises a first reinforcing rib plate 151, a torsion arm baffle 152, a push rod guide plate 153, a push rod 154, a first cylindrical pin 155, a hydraulic jack 156 with a pressure sensor, a first baffle 157, a hydraulic jack cushion block 158 and a first sliding plate 159. The pressure output assembly is used for outputting axial pressure and positioning the torsion arm when the torsion arm is disassembled.
The pressure output assembly 150 is integrally fixed to the base plate 130 by a T-bolt assembly 240, and serves primarily to convert the pressure of the hydraulic manual pump 140 into axial pressure that is transmitted to the torque arm ram assembly 180. The torsion arm baffle 152 is used for limiting the first torsion arm 21 and ensuring the center distance between the first torsion arm 21 and the second torsion arm 23; the jack guide plate 153 serves to guide the jack 154; the ram 154 is connected to a hydraulic jack 156 having a pressure sensor, and the pressure of the hydraulic manual pump 140 is applied to the end of the torsion arm ram assembly 180 in the axial direction by being guided by a ram guide plate 153. The first cylindrical pin 155 is used for fixing and positioning the torsion arm baffle plate 152, the baffle plate 157 and the mandril guide plate 153 with the first sliding plate 159 respectively, and the number of the first cylindrical pins 155 can be 6 or more than 6. Hydraulic jacks 156 with pressure sensors are used to provide pressure and record the pressure level. The first baffle 157 is used for positioning the hydraulic jack 156 with the pressure sensor; slide plate one 159 is used to secure torque arm retainer plate 152, retainer plate one 157, and ram guide plate 153. The first reinforcement plate 151 is used for reinforcing the fixation of the first torsion arm baffle plate 152, the first baffle plate 157 and the first ram guide plate 153 with the first slide plate 159.
The ultrahigh pressure manual pump 160 supplies oil pressure to the first torsion arm 21 of the anti-rolling torsion bar through the high pressure oil pipe 190 and the high pressure oil pump quick joint 200, and expands the inner diameter of the first torsion arm 21.
The torsion bar shaft ram assembly 170, which includes a torsion bar shaft ram 171 and a bushing one 172, is used to transfer axial pressure when the torsion arm is removed. When disassembled, is mounted on the end of the torque shaft 22. The torsion bar shaft pressure head 171 transmits the axial pressure output by the pressure output assembly 150 to the torsion bar shaft, and pushes the torsion bar shaft 22 to generate axial displacement, so as to disassemble the anti-roll torsion bar. The first bushing 172 is made of a material with a lubricating effect and mainly plays a role in lubricating; the material used for the bushing 172 may be copper, or other materials with lubricating effect.
A torsion arm ram assembly 180, including a torsion arm ram 181 and a bushing 182, assembled to an end of the torsion shaft 22; the torque arm ram assembly is used to transfer axial pressure. The torsion arm ram 181 transmits the axial pressure output from the pressure output unit 150 to the assembled first torsion arm 21 or second torsion arm 23, and then the assembly is performed. One end of the torsion arm pressing head 181 is provided with a hole, and the end surface of the inner hole is used for positioning the press-fitting positions of the first torsion arm 21 and the second torsion arm 23. The round surface of the torsion arm pressing head 181 is provided with 1 or more observation holes for observing whether the press fitting is in place. The second bushing 182 is made of a material having a lubricating effect, and mainly plays a role in lubrication. The material of the second bushing 182 may be copper, or may be other materials with lubricating effect.
And a high-pressure oil pipe 190 for connecting the ultrahigh-pressure manual pump 160 and the torsion arm to transmit oil pressure.
The high-pressure oil pump quick connector 200 is connected with the ultrahigh-pressure manual pump 160 and the torsion arm through the high-pressure oil pipe 190, so that the pressure provided by the ultrahigh-pressure manual pump 160 can be smoothly transmitted to the torsion arm.
The support base assembly 210, including the support base 211, the first latch 212, the upper cover plate 213, the nylon block 214, the screw 215, the washer 216, the lock bolt 217, the lock nut 218, and the second latch 219, is used to fix or mount the torsion bar shaft 22. The support base 211 is fixed to the base plate 130 by a T-bolt set 240 to support the torsion bar shaft 22. The first pin 212 is used to connect the supporting base 211 and the upper cover plate 213. After the torsion bar shaft is placed, the upper cover plate 213 and the support base 211 are locked by the locking bolt 217 and the locking nut 218, and the torsion bar shaft 22 is fixed. The nylon block 214 is connected to the upper cover plate 213 and the support base 211 by a screw 215 and a washer 216, respectively, for protecting the torsion bar shaft 22 and preventing the torsion bar shaft 22 from surface damage. The nylon blocks 214 comprise an upper nylon block and a lower nylon block, and the fan angle of the nylon blocks 214 can be 110 degrees, as shown in fig. 8; the locking of the upper cover plate 213 and the support base 211 may be set to any value less than 180 °. The number of the screws 215 and the washers 216 can be 2 or more than two, and the nylon block 214 is fixed by the screws 215 and the washers 216. The locking bolt 217 and the locking nut 218 are used together to lock the upper cover plate 213 and the supporting base 211. The second pin 219 is used to connect the locking bolt 217 and the supporting seat 211. The number of the supporting seat assemblies 210 may be 2 or more. The first pin 212 and the upper cover plate 213 and the first pin 212 and the support seat 211 are in clearance fit, and after the first pin 212, the upper cover plate 213 and the support seat 211 are assembled, the upper cover plate 213 can rotate freely in the circumferential direction. The second bolt 219 is in clearance fit with the locking bolt 217 and the second bolt 219 is in clearance fit with the support seat 211, and after the second bolt 219, the locking bolt 217 and the support seat 211 are assembled, the locking bolt 217 can freely rotate in the circumferential direction.
The damper assembly 220 is used for positioning the end portion of the torsion bar shaft 22, and the damper assembly 220 comprises a second slide plate 222, a second reinforcing rib plate 221, a torsion bar shaft top block 223, a second damper 224 and a second cylindrical pin 225. The second sliding plate 222 is fixed to the bottom plate 130 by a plurality of T-bolt sets 240 for carrying the top block 223 and the second baffle plate 224 of the torsion bar shaft. The second reinforcing rib plate 221 is used for connecting the second baffle plate 224 and the second sliding plate 222, and plays a role in reinforcing and fixing. The torsion bar shaft top block 223 is used for positioning the torsion bar shaft 22 in the axial direction and limiting the axial displacement of the torsion bar shaft; the end of the torsion bar shaft top block 223 with small diameter is connected with the second baffle plate 224 through hole in a clearance fit mode, and the torsion bar shaft top block 223 can be freely detached. The second baffle plate 224 is used for limiting the torsion bar shaft top block 223; the size of the through hole of the second baffle 224 can be 65mm, and other sizes can also be adopted. The second cylindrical pin 225 is used for positioning and fixing the second baffle plate 224 and the second sliding plate 222; the number of the second cylindrical pins 225 can be 2, and can also be more than one.
Positioning pins 230 for positioning the flapper assembly 220 and the pressure output assembly 150 for securing the position of the torsion bar shaft 22 during assembly and disassembly; the number of the positioning pins 230 may be two or more.
The T-bolt sets 240 are provided in a plurality of numbers for fixing the pressure output assembly 150, the support base assembly 210, the height positioning block 120 and the baffle assembly 220 to the bottom plate 130. The number of the T-bolt sets 240 may be 8, or may be 8 or more.
A method for assembling and disassembling a detachable interference fit anti-rolling torsion bar comprises the steps that 2 or more support seat assemblies 210 are used for fixing or placing a torsion bar shaft 22, one end of the torsion bar shaft is positioned through a baffle plate assembly 220, an ultrahigh pressure manual pump 160 is used for providing hydraulic pressure and transmitting the hydraulic pressure to a first torsion arm 21 or a second torsion arm 23 through a high-pressure oil pipe 190, the inner diameter of an inner hole of the first torsion arm 21 or 23 is expanded, meanwhile, the hydraulic manual pump 140 provides oil pressure and provides axial pressure through the action of a pressure output assembly 150, and the first torsion arm 21 or the second torsion arm 23 and the torsion bar shaft 22 are assembled or disassembled. The assembling and disassembling method for the detachable interference fit anti-rolling torsion bar comprises an assembling method and a disassembling method.
The assembling method comprises the following steps:
the first step is as follows: the baffle plate assembly 220, the supporting seat assembly 210 and the height positioning block 120 are fixed on the bottom plate 130, the torsion bar shaft 22 is horizontally arranged on the dismounting tool, and the pressure output assembly 150 is adjusted and fixed according to the size of the anti-rolling torsion bar.
The second step is that: the torsion bar shaft is taken down from the dismounting tool, the processed first torsion arm 21 is sleeved on the torsion bar shaft 22, the end face of the first torsion arm 21 is slightly knocked by a copper rod, so that the pre-assembly of one end of the torsion bar shaft 22 and the first torsion arm 21 is realized, the whole torsion bar shaft is lifted to the assembly position on the dismounting tool and is horizontally placed, and the other end of the torsion bar shaft 22 abuts against a torsion bar shaft jacking block 223 of the baffle plate assembly 220.
The third step: the torsion arm pressing head assembly 180 is placed at the end part of the torsion bar shaft 22, an observation hole in the torsion arm pressing head assembly 180 is adjusted to be convenient for observation, and the first torsion arm 21 is circumferentially positioned through the height positioning block 120.
The fourth step: the upper cover plate 213 is closed and the lock nut 218 is tightened to secure the torque shaft 22.
The fifth step: and (3) installing the high-pressure oil pump quick connector 200 on the first torsion arm 21 oil injection threaded hole (high-pressure oil injection port), fastening and connecting the high-pressure oil pipe 230.
And a sixth step: starting the hydraulic manual pump 140, starting the hydraulic jack 156 with the pressure sensor to work, and enabling the ejector rod 154 to axially press the torsion arm pressure head assembly 180 to provide axial pressure; the ultrahigh pressure manual pump 160 works to gradually increase the hydraulic pressure to a certain required value, when the pressure is difficult to maintain, the axial pressure slowly increases (when the pressure relief provided by the ultrahigh pressure manual pump 160 is relatively fast, the axial pressure increasing speed can be properly accelerated), and whether the torsion arm is pressed in place or not is visually observed through the observation hole of the torsion arm pressing head assembly 180 (when the end face of the inner hole of the torsion arm pressing head 181 presses the end face of the torsion bar shaft 22, the first torsion arm 21 is pressed in place).
The seventh step: after the first torsion arm 21 is pressed in place, the ultrahigh pressure manual pump 160 slowly releases pressure, and the axial force is kept for a certain time.
Eighth step: after the axial pressure maintaining time is over, the axial force is slowly released, and the high-pressure oil pipe 190 and the high-pressure oil pump quick connector 200 are disassembled.
The ninth step: turning around the torsion bar shaft 22, assembling the second torsion arm 23 at the other end according to the same method, and circumferentially positioning the first torsion arm 21 and the second torsion arm 23 by using the height positioning blocks 180 at the two ends to ensure the height difference between the first torsion arm 21 and the second torsion arm 23.
The tenth step: and (5) finishing assembly.
The disassembling method comprises the following steps:
the first step is as follows: the torsion bar shaft top block 223 is disassembled (the whole baffle plate assembly can be disassembled or moved rightwards when needed), the anti-rolling torsion bar is arranged on the disassembling and assembling tool, the torsion bar shaft pressure head assembly 170 is arranged at the end part of one end of the torsion bar shaft 22, the inner side (right side surface) of the torsion arm I21 at one end of the anti-rolling torsion bar is tightly attached to the torsion arm baffle plate 152, and the torsion arm I is arranged on the height positioning block 120.
The second step is that: the upper cover plate 213 is closed and the lock nut 218 is tightened to position the anti-roll torsion bar, taking care to allow the axial movement of the torsion bar shaft.
The third step: and (3) installing the high-pressure oil pump quick connector 200 on the first torsion arm 21 oil injection threaded hole (high-pressure oil injection port), fastening and connecting the high-pressure oil pipe 190.
The fourth step: the ram 154 is brought into contact with the end face of the torsion bar shaft pressure head assembly 170, the hydraulic manual pump 140 is started, and the hydraulic jack 156 with the pressure sensor starts to operate, applying axial pressure to the torsion bar shaft.
The fifth step: the ultrahigh pressure manual pump 160 starts to work, slowly raises the pressure and maintains the pressure at the maximum of 250MPa, and if the first torsion arm 21 is not automatically released, the circumferential pressure is slowly raised (the maximum does not exceed 100 kN) until the first torsion arm 21 is released from the torsion bar shaft 22.
And a sixth step: and after the first torsion arm 21 is loosened, the high-pressure oil pump quick connector 200 and the high-pressure oil pipe 190 are disassembled.
The seventh step: and turning the anti-rolling torsion bar around, and disassembling a second torsion arm 23 at the other end according to the same method.
Eighth step: after the disassembly is finished, the torsion bar shaft 22, the first torsion arm 21 and the second torsion arm 23 are wiped, foreign matters such as grease, dust and the like in the conical surfaces and the chamfer areas at the two ends are matched, and anti-rust oil is coated on the foreign matters.
Part of the contents in the above scheme may adopt the following alternative ways:
1. the disassembly and assembly tool (namely, the disassembly and assembly tool for the detachable interference fit anti-side rolling torsion bar) adopts an ultrahigh pressure manual pump 160 to provide a hydraulic expansion torsion arm, and can also replace a hydraulic station to provide expansion force;
2. the disassembly and assembly tool can be replaced by a hydraulic station in a mode that the hydraulic manual pump 140 provides axial pressure, and can also provide the axial pressure in a mode that a torque wrench screws a bolt;
3. the connection between the support base 211 and the upper cover plate 213 in the support base assembly 210 adopts a bolt manner, and can also be replaced by a bolt fastening manner;
4. the first bushing 172 and the second bushing 182 are made of materials which can be replaced by other materials with lubricating effect;
5. the nylon block 214 may be replaced by other softer material to ensure that the surface of the torque shaft 22 is not damaged.
Compared with a hot assembly method, the invention has the following advantages: a. the torsion arm is not required to be heated by an oven, and cooling treatment is not required after assembly, so that the assembly efficiency is improved; b. compared with the non-detachable way of a hot assembly method, the invention can realize high-precision assembly and repeated assembly and disassembly of the torsion arm; c. the assembly scheme provided by the invention can be repeatedly disassembled for many times, does not influence the joint surface of the torsion bar shaft and the torsion arm, has good size detectability of the matching area, and has good product repairability in the later period.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (6)
1. A disassembly and assembly tool for a detachable interference fit anti-side rolling torsion bar comprises a support and a bottom plate arranged on the support; the assembly and disassembly tool is characterized by further comprising a pressure output assembly, a supporting seat assembly, a baffle plate assembly, a torsion bar shaft pressure head assembly and a torsion arm pressure head assembly; the pressure output assembly is arranged at the left end part of the upper surface of the bottom plate, the supporting seat assembly is arranged in the middle of the upper surface of the bottom plate, and the baffle plate assembly is arranged at the right end part of the upper surface of the bottom plate; the pressure output assembly comprises a torsion arm baffle plate capable of blocking a torsion arm, and the baffle plate assembly comprises a torsion rod shaft top block capable of blocking a torsion rod shaft and capable of being detached;
the disassembly and assembly tool further comprises a height positioning block for circumferentially positioning the torsion arm, and the height positioning block is arranged on the bottom plate;
the upper surface of the bottom plate is provided with a groove for positioning and adjusting the positions of the pressure output assembly, the supporting seat assembly and the baffle plate assembly; more than three T-shaped grooves are formed in the upper surface of the bottom plate;
the disassembly and assembly tool further comprises a hydraulic manual pump or a hydraulic station for providing axial pressure, and the hydraulic manual pump or the hydraulic station is connected with the pressure output assembly;
the disassembling and assembling tool further comprises a positioning pin for positioning the baffle assembly and the pressure output assembly, and a T-shaped bolt group for fixing the pressure output assembly, the support seat assembly and the height positioning block on the bottom plate; the torsion arm comprises a first torsion arm and a second torsion arm which are respectively positioned at two ends of the torsion bar shaft, the number of the height positioning blocks is two, and the two height positioning blocks are respectively used for circumferentially positioning the first torsion arm and the second torsion arm;
the supporting seat assembly comprises a supporting seat, a first plug pin, an upper cover plate, a nylon block, a screw, a washer, a locking bolt, a locking nut and a second plug pin; the support seat is arranged on the bottom plate through a T-shaped bolt group; one end of the upper cover plate is hinged on the supporting seat through a first bolt; after the torsion bar shaft is placed on the supporting seat, the upper cover plate can be locked on the supporting seat through the locking bolt and the locking nut, so that the torsion bar shaft is fixed;
nylon blocks are arranged between the torsion bar shaft and the supporting seat and between the torsion bar shaft and the upper cover plate, the nylon blocks comprise an upper nylon block and a lower nylon block, the upper nylon block is connected with the upper cover plate through a screw and a gasket, and the lower nylon block is connected with the supporting seat through a screw and a gasket; the nylon block is in a fan shape with an angle less than 180 degrees; the bolt II is connected with the locking bolt and the supporting seat; the number of the supporting seat assemblies is more than two;
the baffle plate assembly comprises a sliding plate II, a reinforcing rib plate II, a torsion bar shaft top block, a baffle plate II and a cylindrical pin II; the baffle II is connected to the left end of the upper surface of the sliding plate II through a cylindrical pin II; the upper part of the baffle II is provided with a through hole; the torsion bar shaft top block is in a horizontal cylindrical shape, the diameter of the left part of the torsion bar shaft top block is larger than that of the right part of the torsion bar shaft top block, and the right part of the torsion bar shaft top block is detachably connected to the through hole of the baffle; when the detachable interference fit anti-side rolling torsion bar is assembled, the torsion bar shaft top block is blocked at the right end of the torsion bar shaft; the second sliding plate is fixedly connected with the bottom plate through a T-shaped bolt group.
2. The disassembly and assembly tool for the detachable interference fit anti-rolling torsion bar according to claim 1, wherein the pressure output assembly is fixed on the bottom plate through a T-shaped bolt group; the pressure output assembly also comprises a first reinforcing rib plate, a first ejector rod guide plate, an ejector rod, a first cylindrical pin, a first baffle plate, a first hydraulic jack cushion block, a first sliding plate and a first hydraulic jack with a pressure sensor; the torsion arm baffle is arranged near the right end of the first sliding plate, and a first reinforcing rib plate is arranged between the right side surface of the torsion arm baffle and the first sliding plate; the hydraulic jack is installed at the left part of the first sliding plate through a hydraulic jack cushion block; the left end of the ejector rod is connected with a hydraulic jack, and the ejector rod is installed on the first sliding plate through an ejector rod guide plate; a first baffle is arranged on the left side of the hydraulic jack; the torsion arm baffle, the baffle I and the ejector rod guide plate are arranged on the sliding plate I through a cylindrical pin I; the right end of the ejector rod is connected with a torsion arm pressure head assembly, and the first sliding plate is fixed on the bottom plate through a T-shaped bolt group.
3. The disassembly and assembly tool for the detachable interference fit anti-rolling torsion bar according to claim 1, further comprising an ultrahigh pressure power supply facility, a high pressure oil pipe, a high pressure oil pump quick coupling, wherein the ultrahigh pressure power supply facility is an ultrahigh pressure manual pump or a hydraulic station; the torsion arm is provided with a high-pressure oil injection port, and the ultrahigh-pressure power supply facility is connected with the high-pressure oil injection port of the torsion arm through a high-pressure oil pipe and a high-pressure oil pump quick joint.
4. The tool for disassembling and assembling the detachable interference fit anti-rolling torsion bar according to claim 1, wherein the torsion bar shaft pressure head assembly comprises a torsion bar shaft pressure head and a first bushing; when the detachable interference fit anti-side rolling torsion bar is disassembled, the torsion bar shaft pressure head assembly is arranged at the end part of the torsion bar shaft;
the torsion arm pressure head assembly comprises a torsion arm pressure head and a bushing II; one end of the torsion arm pressure head is provided with a hole, and the end surface in the hole is used for positioning the press-mounting position of the torsion arm; the torsion arm pressure head is cylindrical, and an observation hole is formed in the outer circumferential surface.
5. A method for disassembling and assembling a detachable interference fit anti-rolling torsion bar by using the disassembling and assembling tool as claimed in claim 1, which is characterized in that a support seat assembly is adopted to fix or place the torsion bar shaft; the ultra-high pressure power supply facility is used for providing hydraulic pressure and transmitting the hydraulic pressure to the inner hole of the torsion arm through the high pressure oil pipe so as to expand the inner diameter of the inner hole of the torsion arm, and meanwhile, the pressure output assembly is used for applying axial pressure to the torsion arm or the torsion bar shaft to push the torsion arm or the torsion bar shaft to move axially, so that the torsion arm and the torsion bar shaft are assembled or disassembled;
assembling and disassembling by adopting the disassembling and assembling tool of claim 1;
the assembling method comprises the following steps:
the first step is as follows: fixing the baffle plate assembly, the support seat assembly and the height positioning block on the bottom plate, horizontally placing the torsion bar shaft on a dismounting tool, and adjusting and fixing the pressure output assembly;
the second step is that: taking down the torsion bar shaft, sleeving the torsion arm on the torsion bar shaft, lightly knocking one end face of the torsion arm by using a copper bar to pre-assemble one end of the torsion bar shaft and the first torsion arm, hoisting the torsion bar shaft and the first torsion arm to a disassembling and assembling tool to be horizontally placed, and enabling the other end of the torsion bar shaft to prop against a torsion bar shaft jacking block of the baffle plate assembly;
the third step: placing a torsion arm pressure head assembly at the end part of the torsion bar shaft, adjusting an observation hole in the torsion arm pressure head assembly to a position convenient for observation, and circumferentially positioning the first torsion arm through a height positioning block;
the fourth step: covering the upper cover plate, and screwing the locking nut to fix the torsion bar shaft;
the fifth step: installing a high-pressure oil pump quick connector on a high-pressure oil injection port of the first torsion arm, fastening and connecting a high-pressure oil pipe;
and a sixth step: starting the hydraulic manual pump, starting a hydraulic jack with a pressure sensor to work, and enabling the ejector rod to axially press the torsion arm pressure head assembly to provide axial pressure; the ultrahigh pressure manual pump works to gradually increase the hydraulic pressure to a preset value; whether the torsion arm is pressed in place or not is visually observed through an observation hole of the torsion arm pressure head assembly, and when the end face of the inner hole of the torsion arm pressure head is pressed to the end face of the torsion bar shaft, the first torsion arm is pressed in place;
the seventh step: after the first torsion arm is pressed in place, the ultrahigh pressure manual pump releases pressure, and the axial pressure is kept for a preset time;
eighth step: after the axial pressure maintaining time reaches the preset time, releasing the pressure by axial pressure, and disassembling the high-pressure oil pipe and the high-pressure oil pump quick connector;
the ninth step: turning around the torsion bar shaft, assembling a second torsion arm at the other end of the torsion bar shaft according to the same method, and circumferentially positioning the first torsion arm and the second torsion arm by utilizing positioning blocks with the heights at the two ends;
the tenth step: completing the assembly;
the disassembling method comprises the following steps:
the first step is as follows: disassembling a top block of the torsion bar shaft, arranging an anti-side-rolling torsion bar on a disassembling tool, arranging a torsion bar shaft pressure head assembly at the end part of one end of the torsion bar shaft, tightly attaching the inner side of a torsion arm I at one end of the anti-side-rolling torsion bar to a torsion arm baffle and arranging the torsion arm I on a height positioning block;
the second step is that: covering an upper cover plate, screwing a locking nut, placing an anti-side-rolling torsion bar well, and paying attention to enable the torsion bar shaft to move axially;
the third step: installing a high-pressure oil pump quick connector on a high-pressure oil injection port of the first torsion arm, fastening and connecting a high-pressure oil pipe;
the fourth step: contacting the ejector rod with the end surface of the torsion bar shaft pressure head assembly, starting a hydraulic manual pump, starting a hydraulic jack with a pressure sensor to work, and applying axial pressure to the torsion bar shaft;
the fifth step: the ultrahigh pressure manual pump starts to work, the pressure is increased to a required value and is kept, and if the first torsion arm is not automatically loosened, the pressure is continuously increased until the first torsion arm can be loosened from the torsion bar shaft;
and a sixth step: after the torsion arm is loosened, the high-pressure oil pump quick connector and the high-pressure oil pipe are disassembled;
the seventh step: turning around the torsion bar shaft, and disassembling a second torsion arm at the other end according to the same method;
eighth step: and (5) completing the disassembly.
6. The method for assembling and disassembling a detachable interference fit anti-side-rolling torsion bar according to claim 5, wherein when the detachable interference fit anti-side-rolling torsion bar is assembled, the torsion bar shaft is fixed on the support seat assembly, the baffle plate assembly is blocked on the right end surface of the torsion bar shaft, and the torsion arm pressure head assembly is connected between the pressure output assembly and the torsion arm;
when the detachable interference fit anti-side-rolling torsion bar is detached, the torsion bar shaft jacking block is detached, the torsion bar shaft is placed on the support seat assembly and can axially move, the torsion arm adjacent to the pressure output assembly is located on the left side of the torsion arm baffle, and the torsion bar shaft pressure head assembly is connected between the pressure output assembly and the torsion bar shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910459913.2A CN110202522B (en) | 2019-05-30 | 2019-05-30 | Disassembling and assembling tool and method for detachable interference fit anti-side-rolling torsion bar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910459913.2A CN110202522B (en) | 2019-05-30 | 2019-05-30 | Disassembling and assembling tool and method for detachable interference fit anti-side-rolling torsion bar |
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| CN110202522A CN110202522A (en) | 2019-09-06 |
| CN110202522B true CN110202522B (en) | 2021-04-16 |
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| CN113977253A (en) * | 2021-11-29 | 2022-01-28 | 广东华电韶关热电有限公司 | Rapid turbine coupling bolt disassembling tool and using method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56114631A (en) * | 1980-02-04 | 1981-09-09 | Hitachi Ltd | Method of fitting boss by oil pressure |
| KR100613838B1 (en) * | 2006-05-04 | 2006-08-17 | 대원인물 주식회사 | Shrinkage fitted apparatus of anti-roll bar for a railroad car |
| CN201960318U (en) * | 2010-12-02 | 2011-09-07 | 广州柴油机厂股份有限公司 | Check ring for assembling coupling |
| CN203348355U (en) * | 2013-04-10 | 2013-12-18 | 中煤张家口煤矿机械有限责任公司 | Coupler keyless joint structure and high-pressure disassembly and assembly device |
| CN103341835B (en) * | 2013-07-17 | 2015-12-30 | 株洲九方装备股份有限公司 | Torque arm apparatus for assembling |
| CN206286794U (en) * | 2016-11-10 | 2017-06-30 | 武汉宇利和机电技术有限公司 | The dismounting assembling device bed of anti-side rolling torsion rod bearing |
| CN207058005U (en) * | 2017-07-17 | 2018-03-02 | 广州沧恒自动控制科技有限公司 | A kind of assembling device of anti-side rolling torsion rod and torsion bar arm |
| CN107627093B (en) * | 2017-11-01 | 2019-07-02 | 株洲时代新材料科技股份有限公司 | A kind of anti-side rolling torsion rod component automatic positioning assembling device and method |
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