CN115476301A - Jib type axle box auxiliary positioning device - Google Patents
Jib type axle box auxiliary positioning device Download PDFInfo
- Publication number
- CN115476301A CN115476301A CN202211353597.9A CN202211353597A CN115476301A CN 115476301 A CN115476301 A CN 115476301A CN 202211353597 A CN202211353597 A CN 202211353597A CN 115476301 A CN115476301 A CN 115476301A
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- double
- screw rod
- nut
- axle box
- cross beam
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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
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/14—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top
- B25H1/16—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top in height
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Jib axle box auxiliary positioning device belongs to city railway train jib axle box assembly auxiliary device field, and the device includes base, four connecting rods, hand lead screw, unthreaded hole sleeve double-hinged seat, screw double-hinged seat, crossbeam, two vertical bracing pieces, door font clamp plate mechanism and positioning platform. The invention can accurately position a vertical shock absorber mounting seat at any given horizontal height, and prevent the jib type axle box from tilting, deflecting and shaking or rotating from the axle when subsequently fastening bolts, thereby avoiding torque moment when a torque wrench correctly measures the bolts, avoiding false sound and false alarm, further improving the operation precision of the bolt assembly process, reducing errors and rework rate, and ensuring the operation quality and the workpiece safety. When the auxiliary positioning device for the rotating arm type axle box positions the rotating arm type axle box and performs assembly operation, only one operator is needed to easily and independently complete all operations, so that the production efficiency can be improved, the manpower resource is saved, and the production cost can be effectively reduced.
Description
Technical Field
The invention belongs to the field of auxiliary devices for assembling a swing arm type axle box of an urban railway train, and particularly relates to an auxiliary positioning device for a swing arm type axle box.
Background
As shown in figure 1, in a rotating arm type axle box 1 for a certain type of urban railway train bogie, rotating arms 1-5 and a series of vertical shock absorber mounting seats 1-4 are respectively and symmetrically fixedly connected to two sides of an axle box shell 1-1 in the radial direction, and an axle box rear end cover 1-2 needs to be fastened at the axial rear end of the axle box shell 1-by three bolts 1-3. In order to prevent impurities from entering the interior of the axle box cylinder or scratches from occurring, the axle box housing 1-1 is not allowed to be placed on a horizontal ground in a lying-down posture, and thus, is only installed in an axially horizontal posture of the axle box cylinder.
The existing installation method of the rear end cover 1-2 of the axle box needs two operators to cooperate, one operator fixes the axle box by hands to prevent the axle box from shaking and overturning so as to protect a workpiece from overturning and colliding injuries and avoid the injury of personnel, and the other operator needs to respectively fasten the three bolts 1-3 by using an intelligent torque wrench. However, since the axle box housing 1-1 is similar to a lantern shape or a cylinder shape, and the contact surface between the bottom of the axle box housing 1-1 and the horizontal ground is very small, the axle box housing 1-1 which is arranged in the axial horizontal posture of the axle box cylinder and the ground is easy to rotate or deflect and shake from the axis when bolt tightening torque is applied, so that the tightening torque of the bolt 1-3 has errors, only a torque wrench can easily generate false alarm and false alarm, and further, the potential safety hazard that the bolt tightening force is insufficient and is easy to fall off is induced, and the predetermined requirement of quality control cannot be met.
Disclosure of Invention
The problem that when a torque wrench is used for installing an axle box rear end cover bolt into a lateral opening of an axle box shell, the axle box shell with a small contact area with the ground is easy to rotate or deflect and shake from an axle, so that the torque wrench is easy to generate false sound and misinformation, the tightening torque of the bolt is easy to generate an error phenomenon, and further the potential safety hazard that the tightening force of the bolt is insufficient and the bolt is easy to fall off is induced, the preset requirement of quality control cannot be met, and the installation operation quality and the operation safety cannot be guaranteed; the invention also provides an operation method for the cooperation of two operators, which has the technical problems of high labor intensity, low production efficiency, waste of human resources and inconvenience for reducing the production cost.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a rotary arm type axle box auxiliary positioning device comprises a base, four connecting rods, a hand-operated lead screw, a unthreaded hole sleeve double-hinged support, a nut double-hinged support, a cross beam, two vertical supporting rods, a door-shaped pressure plate mechanism and a positioning platform, wherein the four connecting rods, the hand-operated lead screw, the unthreaded hole sleeve double-hinged support and the nut double-hinged support jointly form a rhombic scissor type lifting mechanism; the center of the base is provided with a base double-axle seat, the lower end of the middle section of the cross beam is provided with a cross beam double-axle seat, and two ends of the cross beam are bilaterally symmetrically provided with vertical threaded through holes; the base double-shaft seat and the beam double-shaft seat are respectively and rotatably connected with the top end and the bottom of the scissor-fork type lifting mechanism; the positioning platform and the door-shaped pressing plate mechanism are fixedly connected to the upper end face of the middle section of the cross beam; the two vertical support rods are respectively in threaded connection with the vertical threaded through holes in one-to-one correspondence.
Two axially parallel base rotating shafts are arranged inside the base double-shaft seat, two axially parallel beam rotating shafts are arranged inside the beam double-shaft seat, and the base rotating shafts and the beam rotating shafts are parallel to each other; two ends of the connecting rod are respectively provided with a shaft base hole and a hinge shaft hole which are parallel to each other; the main body of the unthreaded hole sleeve double-hinged support is a sleeve with a smooth inner diameter, and two sleeve pin shafts are symmetrically arranged on the same diameter of the outer diameter side wall of the sleeve; the main body of the nut double-hinged support is an internal thread nut, and two nut pin shafts are symmetrically arranged on the same diameter of the outer diameter side wall of the nut in a left-right mode; each base rotating shaft and each beam rotating shaft are respectively in rotating connection with the shaft seat holes corresponding to one another; each sleeve pin shaft and each nut pin shaft are respectively in rotary connection with one-to-one corresponding hinged shaft holes.
The hand-operated lead screw comprises a lead screw and a rocker handle coaxially connected with one end of the lead screw; the other end of the screw rod penetrates through the unthreaded hole of the sleeve and is in threaded connection with the nut to form a screw rod mechanism.
The door-shaped pressing plate mechanism comprises two screw rod stand columns, two pressure drop nuts and a pressing plate, wherein the two screw rod stand columns are vertically and fixedly connected to the upper end surface of the cross beam and are symmetrically arranged on the left side and the right side of the positioning platform; one end of the pressing plate is provided with a pressing plate unthreaded hole, and the other end of the pressing plate is provided with a lateral opening; the distance between the unthreaded hole of the pressing plate and the lateral opening is just equal to the axle distance of the two screw upright posts; the pressing plate unthreaded hole is coaxially nested and rotationally connected with a screw upright post; each pressure drop nut is in one-to-one corresponding threaded connection with one screw rod upright post and is positioned above the pressure plate.
The four connecting rods in the scissor type lifting mechanism are enclosed together to form a square or rhombus; the length of the screw rod is greater than the sum of the lengths of the two connecting rods; the height of vertical bracing piece is the same with the length of silk pole.
The beneficial effects of the invention are: the swing arm type axle box auxiliary positioning device is fixedly connected with a door-shaped pressing plate mechanism and a positioning platform at the middle part of the upper end of a cross beam, and can clamp a series of vertical shock absorber mounting seats in an inner door-shaped pressing plate mechanism through pressing plates. The main body of a unthreaded hole sleeve double-hinged seat in the scissor-fork type lifting mechanism is a sleeve with smooth inner diameter, and two sleeve pin shafts are symmetrically arranged on the same diameter of the outer diameter side wall of the sleeve in a left-right mode; the main body of the nut double-hinged support is an internal thread nut, and two nut pin shafts are symmetrically arranged on the same diameter of the outer diameter side wall of the nut in a left-right mode; each base rotating shaft and each beam rotating shaft are respectively in rotating connection with the shaft seat holes corresponding to one another; each sleeve pin shaft and each nut pin shaft are respectively in rotary connection with one-to-one corresponding hinged shaft holes. The other end of the screw rod penetrates through the unthreaded hole of the sleeve and is in threaded connection with the nut to form a screw rod mechanism. The four connecting rods form a diamond structure in a surrounding mode, and the sleeve and the internal thread nut on the shaft connecting screw rod are located on the horizontal diagonal line of the diamond structure, so that the scissor type lifting mechanism driven by the hand-operated screw rod is formed and used for lifting the cross beam. The structure can accurately position a series of vertical shock absorber mounting seats at any given horizontal height, and prevent the rotating arm type axle box from tilting, deflecting and shaking or rotating from the axis during subsequent fastening bolts, so that torque moment when a torque wrench is used for correctly measuring the bolts for screwing is avoided, false sound and false alarm are avoided, the operation precision of the bolt assembling process is improved, the error and the rework rate are reduced, and the operation quality and the workpiece safety are guaranteed. When the auxiliary positioning device for the rotating arm type axle box positions the rotating arm type axle box and performs assembly operation, only one operator is needed to easily and independently complete all operations, so that the production efficiency can be improved, the human resources are saved, and the production cost can be effectively reduced.
In addition, the rotating arm type axle box auxiliary positioning device has the advantages of simple and practical structure, convenience in operation, low cost, convenience in popularization and the like.
Drawings
FIG. 1 is a schematic perspective view of a knuckle-type axle box for a bogie of a certain type of urban railway vehicle;
FIG. 2 is a schematic perspective view of an auxiliary positioning device for a jib type axlebox according to the present invention;
FIG. 3 is a front view of the inventive boom axle box auxiliary positioning apparatus;
FIG. 4 is a schematic view of the auxiliary positioning device for the jib type axlebox according to the present invention in an applied state;
FIG. 5 is a schematic perspective view of the hand-operated lead screw of the present invention;
FIG. 6 is a schematic perspective view of a dual hinge mount for a unthreaded bore sleeve according to the present invention;
fig. 7 is a perspective view of the double-hinge base of the nut of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 2 to 7, the auxiliary positioning device for a swing-arm type axle box of the present invention comprises a base 2, four connecting rods 3, a hand screw 4, a double-hinged seat for a unthreaded hole sleeve 5, a double-hinged seat for a nut 6, a cross beam 7, two vertical supporting rods 8, a door-shaped platen mechanism 9 and a positioning platform 10, wherein the four connecting rods 3, the hand screw 4, the double-hinged seat for an unthreaded hole sleeve 5 and the double-hinged seat for a nut 6 jointly form a rhombic scissor-type lifting mechanism; a base double-shaft seat 2-1 is arranged at the center of the base 2, a cross beam double-shaft seat 7-1 is arranged at the lower end of the middle section of the cross beam 7, and vertical threaded through holes 7-2 are symmetrically arranged at the two ends of the cross beam 7 in a left-right mode; the base double-shaft seat 2-1 and the beam double-shaft seat 7-1 are respectively and rotatably connected with the top end and the bottom of the scissor type lifting mechanism; the positioning platform 10 and the door-shaped pressing plate mechanism 9 are fixedly connected to the upper end face of the middle section of the cross beam 7; the two vertical support rods 8 are respectively in threaded connection with the vertical threaded through holes 7-2 which correspond one to one.
Two axially parallel base rotating shafts are arranged inside the base double-shaft seat 2-1, two axially parallel cross beam rotating shafts are arranged inside the cross beam double-shaft seat 7-1, and the base rotating shafts and the cross beam rotating shafts are parallel to each other; two ends of the connecting rod 3 are respectively provided with a shaft base hole 3-1 and a hinge shaft hole 3-2 which are parallel to each other; the main body of the unthreaded hole sleeve double-hinged support 5 is a sleeve 5-1 with a smooth inner diameter, and two sleeve pin shafts 5-2 are arranged on the same diameter of the outer diameter side wall of the sleeve in a bilateral symmetry manner; the main body of the nut double-hinged support 6 is an internal thread nut 6-1, and two nut pin shafts 6-2 are arranged on the same diameter of the outer diameter side wall of the nut in a bilateral symmetry mode; each base rotating shaft and each beam rotating shaft are respectively in rotating connection with the shaft seat holes 3-1 which correspond to each other one by one; each sleeve pin shaft 5-2 and each nut pin shaft 6-2 are respectively and rotatably connected with the hinge shaft holes 3-2 which correspond to one another.
The hand-operated screw rod 4 comprises a screw rod 4-1 and a rocker handle 4-2 coaxially connected with one end of the screw rod; the other end of the screw rod 4-1 penetrates through the unthreaded hole of the sleeve 5-1 and is in threaded connection with the screw nut 6-1 to form a screw rod mechanism.
The door-shaped pressing plate mechanism 9 comprises two screw upright columns 9-1, two pressure drop nuts 9-2 and a pressing plate 9-3, wherein the two screw upright columns 9-1 are vertically and fixedly connected with the upper end surface of the cross beam 7 and are symmetrically arranged at the left side and the right side of the positioning platform 10; one end of the pressing plate 9-3 is provided with a pressing plate unthreaded hole, and the other end is provided with a lateral opening 9-3-1; the distance between the unthreaded hole of the pressing plate and the lateral opening 9-3-1 is just equal to the axle distance of the two screw upright posts 9-1; the pressing plate unthreaded hole is coaxially nested and rotationally connected with a screw upright post 9-1; each pressure drop nut 9-2 is in one-to-one corresponding threaded connection with one screw upright post 9-1 and is positioned above the pressure plate 9-3.
Four connecting rods 3 in the scissor type lifting mechanism are encircled together to form a square or rhombus; the length of the screw rod 4-1 is greater than the sum of the lengths of the two connecting rods 3; the height of the vertical support rod 8 is the same as the length of the screw rod 4-1.
Specifically, when the inventive boom type axle box auxiliary positioning device is introduced, as shown in fig. 2, the boom type axle box 1 is stably placed in an axially horizontal posture of the axle box cylinder, and the inventive auxiliary positioning device is placed below one series of vertical shock absorber mounting seats 1 to 4. Then the vertical support bars 8 are respectively rotated to extend upwards along the vertical threaded through holes 7-2. And then, a screw rod 4-1 is driven to rotate from the shaft through a rocker arm handle 4-2, and a screw nut 6-1 is driven to approach to a double-hinged seat 5 of the unthreaded hole sleeve along the axial direction, so that a rhombus formed by surrounding four connecting rods 3 in the scissor-type lifting mechanism is horizontally folded along the diagonal direction of the rhombus and gradually ascends along the vertical diagonal direction of the rhombus until a positioning platform 10 supports the bottom of a vertical shock absorber mounting seat 1-4, the ascending is stopped, and the vertical shock absorber mounting seat 1-4 and a screw hole on the positioning platform 10 are temporarily fastened by a detachable positioning bolt. And then, rotating the pressing plate 9-3 around the screw upright post 9-1 to enable the lateral notch 9-3-1 to be embedded with the other screw upright post 9-1, then respectively rotating the two pressure drop nuts 9-2 and pressing the pressing plate 9-3 to the upper end surface of the vertical shock absorber mounting seat 1-4 through the two pressure drop nuts, so that the upper end surface of the vertical shock absorber mounting seat 1-4 is clamped in the door-shaped pressing plate mechanism 9. And finally, reversely rotating the two vertical support rods 8 respectively to enable the two vertical support rods to extend downwards along the vertical threaded through holes 7-2 until the lower ends of the vertical support rods 8 are supported on the ground, so that the rotating arm type axle box 1 can be reliably fixed in an axial horizontal posture of the axle box cylinder, and a subsequent installation process of the axle box rear end cover 1-2 is carried out.
Claims (5)
1. Jib axle box auxiliary positioning device, its characterized in that: the device comprises a base (2), four connecting rods (3), a hand-operated screw rod (4), a unthreaded hole sleeve double-hinged seat (5), a nut double-hinged seat (6), a cross beam (7), two vertical supporting rods (8), a door-shaped pressing plate mechanism (9) and a positioning platform (10), wherein the four connecting rods (3), the hand-operated screw rod (4), the unthreaded hole sleeve double-hinged seat (5) and the nut double-hinged seat (6) jointly form a rhombic scissor type lifting mechanism; a base double-shaft seat (2-1) is arranged at the center of the base (2), a cross beam double-shaft seat (7-1) is arranged at the lower end of the middle section of the cross beam (7), and vertical threaded through holes (7-2) are symmetrically arranged at the left and right of two ends of the cross beam (7); the base double-shaft seat (2-1) and the beam double-shaft seat (7-1) are respectively and rotatably connected with the top end and the bottom of the scissor type lifting mechanism; the positioning platform (10) and the door-shaped pressing plate mechanism (9) are fixedly connected to the upper end surface of the middle section of the cross beam (7); the two vertical supporting rods (8) are respectively in threaded connection with the vertical threaded through holes (7-2) which correspond one to one.
2. The boom axlebox auxiliary positioning device of claim 1, wherein: two axially parallel base rotating shafts are arranged inside the base double-shaft seat (2-1), two axially parallel cross beam rotating shafts are arranged inside the cross beam double-shaft seat (7-1), and the base rotating shafts and the cross beam rotating shafts are parallel to each other; two ends of the connecting rod (3) are respectively provided with a shaft seat hole (3-1) and a hinged shaft hole (3-2) which are parallel to each other; the main body of the unthreaded hole sleeve double-hinged support (5) is a sleeve (5-1) with a smooth inner diameter, and two sleeve pin shafts (5-2) are arranged on the same diameter of the outer diameter side wall of the sleeve in a bilateral symmetry manner; the main body of the nut double-hinged support (6) is an internal thread nut (6-1), and two nut pin shafts (6-2) are arranged on the same diameter of the outer diameter side wall of the nut in a bilateral symmetry mode; each base rotating shaft and each beam rotating shaft are respectively and rotatably connected with the shaft seat holes (3-1) which correspond to one another; each sleeve pin shaft (5-2) and each nut pin shaft (6-2) are respectively in rotary connection with the hinge shaft holes (3-2) which correspond to one another.
3. The boom axlebox auxiliary positioning device of claim 2, wherein: the hand-operated screw rod (4) comprises a screw rod (4-1) and a rocker arm handle (4-2) coaxially connected with one end of the screw rod; the other end of the screw rod (4-1) penetrates through the unthreaded hole of the sleeve (5-1) and is in threaded connection with the nut (6-1) to form a screw rod mechanism.
4. The boom axlebox auxiliary positioning device of claim 3, wherein: the door-shaped pressing plate mechanism (9) comprises two screw rod stand columns (9-1), two pressure drop nuts (9-2) and a pressing plate (9-3), wherein the two screw rod stand columns (9-1) are vertically and fixedly connected to the upper end face of the cross beam (7) and are symmetrically arranged on the left side and the right side of the positioning platform (10); one end of the pressing plate (9-3) is provided with a pressing plate unthreaded hole, and the other end is provided with a lateral opening (9-3-1); the distance between the press plate unthreaded hole and the lateral opening (9-3-1) is just equal to the axle distance of the two screw upright columns (9-1); the pressing plate unthreaded hole is coaxially nested and rotationally connected with a screw upright post (9-1); each pressure drop nut (9-2) is in one-to-one corresponding threaded connection with one screw upright post (9-1) and is positioned above the pressure plate (9-3).
5. The boom axlebox auxiliary positioning device of claim 3, wherein: the four connecting rods (3) in the scissor type lifting mechanism are enclosed together to form a square or a rhombus; the length of the screw rod (4-1) is greater than the sum of the lengths of the two connecting rods (3); the height of the vertical support rod (8) is the same as the length of the screw rod (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211353597.9A CN115476301A (en) | 2022-11-01 | 2022-11-01 | Jib type axle box auxiliary positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211353597.9A CN115476301A (en) | 2022-11-01 | 2022-11-01 | Jib type axle box auxiliary positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115476301A true CN115476301A (en) | 2022-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211353597.9A Pending CN115476301A (en) | 2022-11-01 | 2022-11-01 | Jib type axle box auxiliary positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115476301A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116163162A (en) * | 2023-04-24 | 2023-05-26 | 广州航海学院 | Ballastless track for tunnel and adjusting method thereof |
-
2022
- 2022-11-01 CN CN202211353597.9A patent/CN115476301A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116163162A (en) * | 2023-04-24 | 2023-05-26 | 广州航海学院 | Ballastless track for tunnel and adjusting method thereof |
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