CN216180181U - Large-stroke hydraulic drawing device - Google Patents
Large-stroke hydraulic drawing device Download PDFInfo
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- CN216180181U CN216180181U CN202122192027.3U CN202122192027U CN216180181U CN 216180181 U CN216180181 U CN 216180181U CN 202122192027 U CN202122192027 U CN 202122192027U CN 216180181 U CN216180181 U CN 216180181U
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Abstract
The utility model discloses a large-stroke hydraulic puller, which comprises a hydraulic cylinder and a flange plate, wherein the piston rod end of the hydraulic cylinder penetrates through the axis of the flange plate through a through hole and is fixedly connected or detachably connected with the flange plate; the wheel parts are disassembled by matching the hydraulic cylinder with the flange plate and arranging the drawing hole on the flange plate, the piston rod of the hydraulic cylinder is propped against the shaft to complete the connection between the flange plate and the wheel parts, and the wheel parts with different sizes are disassembled under the action of the detachable connection between the flange plate and the hydraulic cylinder and the drawing ring hole.
Description
The technical field is as follows:
the utility model relates to the field of machinery, in particular to a large-stroke hydraulic puller.
Background art:
due to the torque transmission requirements, the wheel parts and the shaft are usually in transition fit or tight fit and are coupled by a key. After a certain period of use, oxidation and even corrosion are generated, so that the wheel parts are detached from the shaft during maintenance, which is a troublesome problem in maintenance.
In the prior art, a wheel extractor is usually adopted to realize the disassembly of wheel parts and a shaft, and the existing wheel extractors in the market have many styles and can be roughly divided into a mechanical wheel extractor and a hydraulic wheel extractor. The mechanical wheel puller is provided with two claws and three claws, the screw rod is rotated by the manual rod to move forwards, and the hook claw hooks the unloaded object to bear the reaction force, so that the pull-unloading function is realized; the hydraulic wheel extractor has similar principle and is characterized in that a hydraulic device replaces a manual screw rod, a hydraulic pneumatic rod moves forwards directly, a hook claw seat can move forwards and backwards directly along with threads to adjust the distance, a handle is swung in a small range during operation, the hydraulic pneumatic rod moves forwards, hook claws correspondingly move backwards, and pulled objects are pulled out.
Mechanical type pulls out the trochus because intensity of labour is big during the operation, and the problem of inefficiency is replaced by hydraulic pressure wheel extractor gradually, however, hydraulic pressure wheel extractor also has the problem: 1. the hook claw of the puller is short, and the motor belt pulley is often damaged by overlarge bearing tension of the contact part of the hook claw in the pulling process; 2. the volume is large, the weight is heavy, and in addition, the pumping unit is arranged on a movable foundation and is provided with the belt pulley protective cover, the belt pulley replacement belongs to high-altitude operation, the operation difficulty of personnel is increased, and the work is inconvenient; 3. the portable auxiliary operating tools such as pipe tongs, a sledge hammer, a crow bar, a monkey wrench and the like have high labor intensity, and sparks can be generated when the belt pulley is knocked by the sledge hammer sometimes, so that great potential safety hazards are brought; 4. the operating space is limited, the belt protective cover needs to be detached, the workload is increased, and the labor time is long.
The utility model has the following contents:
the technical problem to be solved by the utility model is as follows: overcome prior art's not enough, through the cooperation of pneumatic cylinder and ring flange to set up on the ring flange and draw the hole and accomplish being connected of ring flange and wheel class part, the piston rod top of pneumatic cylinder is epaxial, accomplishes the dismantlement of wheel class part, and can dismantle with the pneumatic cylinder at the ring flange and be connected and draw under the effect of annular ring, realize carrying out the long-range hydraulic pressure puller dismantled to wheel class part of not unidimensional.
The technical scheme of the utility model is as follows: the utility model provides a ware is drawn to big stroke hydraulic pressure, includes pneumatic cylinder and flange dish, characterized by: the piston rod end of the hydraulic cylinder penetrates through the axis of the flange plate through a through hole and is connected with the axis of the flange plate, a drawing annular hole coaxial with the flange plate is formed in the flange plate, and the drawing annular hole is formed in the flange plate and surrounds at least two drawing holes uniformly distributed in the through hole.
Furthermore, the hydraulic cylinder is fixedly connected with the flange plate.
Furthermore, the through hole is a screw hole, and the piston rod end of the hydraulic cylinder is detachably connected with the flange plate through an external thread arranged outside the piston rod end.
Furthermore, the drawing ring holes are at least two groups and are coaxially arranged on the flange plates with different diameters.
Furthermore, the hydraulic cylinder is communicated with a hydraulic pump through a hydraulic pipeline, and the hydraulic pump is a manual hydraulic pump or an electric hydraulic pump.
Furthermore, the drawing hole is a strip-shaped hole arranged along the radial direction of the flange plate.
The utility model has the beneficial effects that:
1. the wheel parts are disassembled by matching the hydraulic cylinder with the flange plate and arranging the drawing hole on the flange plate, the piston rod of the hydraulic cylinder is propped against the shaft to complete the connection between the flange plate and the wheel parts, and the wheel parts with different sizes are disassembled under the action of the detachable connection between the flange plate and the hydraulic cylinder and the drawing ring hole.
2. The piston rod end of the hydraulic cylinder penetrates through the axle center of the flange plate through the through hole and is fixedly connected with the flange plate, the hydraulic cylinder and the flange plate are in a coaxial state while the connection strength of the hydraulic cylinder and the flange plate is ensured, the stability of disassembling wheel parts is ensured, the flange plate is connected with the wheel parts through the drawing holes arranged on the flange plate, and the drawing holes are uniformly distributed on the flange plate around the through hole, so that the uniform stress of the flange plate and the wheel parts is realized, the connection stability is ensured, and the problem of failed disassembling or deformation of the wheel parts caused by nonuniform stress in the drawing process is also prevented.
3. According to the utility model, the through hole is a screw hole, the external thread is arranged on the outer part of the piston rod end of the hydraulic cylinder, so that the hydraulic cylinder and the flange plate can be detachably connected, the convenience in transportation and the disassembly and assembly of the puller are realized, meanwhile, the flange plate and/or the hydraulic cylinder matched with the flange plate in size can be replaced according to wheel parts with different sizes, the flange plate and the wheel parts are ensured to have different strokes through the replacement of the hydraulic cylinder, and the problem that the shaft is difficult to disassemble due to thermal expansion caused by the fact that the hydraulic cylinder has short stroke and the position of the hydraulic cylinder needs to be adjusted for multiple times in the prior art is solved.
4. The drawing ring holes are at least two groups and are coaxially arranged on the flange plate, so that wheel parts with different sizes are connected on the premise of not replacing the flange plate, and the problem of labor intensity increase caused by frequent replacement of the flange plate is solved.
5. The hydraulic pump is a manual hydraulic pump or an electric hydraulic pump, the hydraulic cylinder is communicated with the manual hydraulic pump or the electric hydraulic cylinder through the quick connector, the manual hydraulic cylinder and the electric hydraulic cylinder are flexibly switched, the electric hydraulic pump is used for driving the hydraulic cylinder to act on the basis of the working condition of the electric hydraulic cylinder, the labor intensity of personnel is reduced, the manual hydraulic pump is used for driving the hydraulic cylinder to act on the basis of the working condition of the electric hydraulic cylinder, and the problem that the wheel parts are failed to be disassembled due to the fact that the electric hydraulic cylinder cannot work is solved.
6. The drawing holes are strip-shaped holes arranged along the radial direction of the flange plate, compared with a plurality of groups of drawing ring holes, the strip-shaped holes are more convenient for the connection of the flange plate and wheel parts with different sizes, connecting parts such as connecting bolts and the like only need to move in the strip-shaped holes without being detached from the flange plate, and the flange plate is convenient and quick.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present application.
Fig. 2 is a schematic structural view of the flange.
Fig. 3 is a schematic structural view of the hydraulic cylinder.
Fig. 4 is a schematic view of the structure as used in the present application.
The specific implementation mode is as follows:
example (b): see fig. 1, 2, 3 and 4; in the figure, 1-hydraulic cylinder, 2-piston rod, 3-through hole, 4-flange, 5-drawing hole, 6-hydraulic pipeline, 7-hydraulic pump, 8-bolt, 9-external thread; a-wheel parts and B-mounting shafts.
The large-stroke hydraulic drawing device comprises a hydraulic cylinder and a flange plate, wherein a piston rod end of the hydraulic cylinder penetrates through the axis of the flange plate through a through hole and is fixedly or detachably connected with the flange plate, a drawing ring hole coaxial with the flange plate is formed in the flange plate, and the drawing ring hole is at least two drawing holes uniformly distributed on the flange plate around the through hole; through the cooperation of pneumatic cylinder and ring flange to set up on the ring flange and draw the hole and accomplish being connected of ring flange and wheel class part, the piston rod top of pneumatic cylinder is epaxial, accomplishes the dismantlement of wheel class part, and can dismantle with the pneumatic cylinder at the ring flange and be connected and draw under the effect of annular ring, realize dismantling the wheel class part of not unidimensional.
The present application will be described in detail below with reference to the drawings and examples.
The first embodiment is as follows:
the end of a piston rod 2 of the hydraulic cylinder 1 penetrates through the axis of a flange plate 4 through a through hole 3 and is fixedly connected with the flange plate (can be welded or connected with a flange bolt), a drawing annular hole coaxial with the flange plate 4 is arranged on the flange plate 4, and the drawing annular hole is at least two drawing holes 5 uniformly distributed on the flange plate 4 around the through hole 3.
2 ends of the piston rod of the hydraulic cylinder 1 penetrate through the axle center of the flange plate 4 through the through hole 3 and are fixedly connected with the flange plate, when the connection strength of the hydraulic cylinder 1 and the flange plate 4 is ensured, the stability of the disassembly of the wheel type part A is ensured, the flange plate 4 is connected with the wheel type part A through the drawing hole 5 arranged on the flange plate, the drawing hole 5 is uniformly distributed on the flange plate around the through hole 3, the uniformity of the stress of the flange plate 4 and the wheel type part A is realized, when the connection stability is ensured, the problem that the disassembly failure or deformation of the wheel type part A is caused due to the non-uniform stress in the drawing process is also prevented.
Example two:
the present embodiment is obtained by changing technical features such as a connection manner between the flange plate 4 and the hydraulic cylinder 1 on the basis of the first embodiment, and other technical features are the same as those of the first embodiment, and the description of the same parts is omitted here, where the detailed description of the added technical features is as follows: the through hole 3 is a screw hole, and the end of the piston rod 2 of the hydraulic cylinder 1 is detachably connected with the flange plate 4 through an external thread 9 arranged outside the hydraulic cylinder.
Realize that pneumatic cylinder 1 and ring flange 4 can dismantle and be connected, when being convenient for transport and conveniently drawing the ware dismouting, can change ring flange 4 and/pneumatic cylinder 1 that matches with it size according to wheel part A of unidimensional, when guaranteeing ring flange 4 and wheel part A stable connection, still make it have different strokes through the change of pneumatic cylinder 1, it is short because of pneumatic cylinder 1 stroke among the prior art, need adjust the position of pneumatic cylinder 1 many times, cause the problem that axle thermal expansion is difficult to dismantle.
Example three:
the embodiment is obtained by adding technical features such as the number of drawing ring holes on the basis of the second embodiment, and other technical features are the same as those of the second embodiment, and the description of adding technical features is not repeated herein, wherein: the drawing ring holes are at least two groups and are coaxially arranged on the flange plates with different diameters.
The wheel parts A with different sizes are connected on the premise of not replacing the flange plate 4, and the problem of labor intensity increase caused by frequent replacement of the flange plate 4 is solved.
Example four:
the present embodiment is obtained by adding technical features such as a hydraulic pump on the basis of the third embodiment, and the remaining technical features are the same as those of the third embodiment, and the description of the added technical features is not repeated herein, wherein: the hydraulic cylinder 1 is connected to a hydraulic pump 7 (not shown) via a hydraulic line 6, the hydraulic pump being a manual hydraulic pump (CSZB type manual oil pump manufactured by drafthou cision hydraulic equipment ltd) or an electric hydraulic pump (RK series 0-150MPA electric oil pump manufactured by shandongcheng hydraulic equipment ltd).
Pneumatic cylinder 1 communicates with manual hydraulic pump 7 or electric hydraulic cylinder 1 through quick-operation joint, realizes the nimble switching of manual hydraulic cylinder 1 and electric hydraulic cylinder 1, uses the action of electric hydraulic pump 7 drive pneumatic cylinder 1 on the basis that possesses the working condition of electric hydraulic cylinder 1, reduction personnel's intensity of labour, use manual hydraulic pump 7 drive pneumatic cylinder 1 action on the basis that does not possess the working condition of electric hydraulic cylinder 1, the problem of leading to wheel class part A to dismantle failure because of electric hydraulic cylinder 1 can not work has been solved.
Example five:
the present embodiment is obtained by changing the technical features such as the structure of the drawing hole 5 on the basis of the fourth embodiment, and the remaining technical features are the same as those of the fourth embodiment, and the details of the added technical features are as follows: the drawing hole 5 is a strip-shaped hole arranged along the radial direction of the flange plate 4.
The bar hole is drawn the annular ring with the multiunit and is compared, and the ring flange 4 of being more convenient for is connected with wheel part A not unidimensional, and adapting unit such as bolt 8 only need in the bar downthehole removal can, need not pull down convenient and fast from ring flange 4.
During the use, according to the required pneumatic cylinder 1 stroke of size and the dismantlement formula of wheel class part A, select the pneumatic cylinder 1 of the ring flange 4 of corresponding size and corresponding stroke, in the through-hole 3 on the ring flange 4 is gone into to the piston rod 2 end screw of pneumatic cylinder 1, realize being connected of ring flange 4 and pneumatic cylinder 1, according to the actual conditions of job site (whether have the operating condition of electronic hydraulic pump 7 in office), select manual hydraulic pump 7 or electronic hydraulic pump 7 to communicate with pneumatic cylinder 1 through quick-operation joint, accomplish the equipment of this application.
The flange 4 and the wheel part A are fastened and connected through a connecting component such as a bolt 8, a piston rod 2 of the hydraulic cylinder 1 is pressed against an installation shaft B of the wheel part A, the hydraulic cylinder 1 is driven to operate through a manual hydraulic pump 7 or an electric hydraulic pump 7, and the wheel part A is detached from the installation shaft B under the action of the piston rod 2 of the hydraulic cylinder 1.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a ware is drawn to big stroke hydraulic pressure, includes pneumatic cylinder and flange dish, characterized by: the piston rod end of the hydraulic cylinder penetrates through the axis of the flange plate through a through hole and is connected with the axis of the flange plate, a drawing annular hole coaxial with the flange plate is formed in the flange plate, and the drawing annular hole is formed in the flange plate and surrounds at least two drawing holes uniformly distributed in the through hole.
2. The large stroke hydraulic puller according to claim 1, wherein: and the hydraulic cylinder is fixedly connected with the flange plate.
3. The large stroke hydraulic puller according to claim 1, wherein: the through hole is a screw hole, and the piston rod end of the hydraulic cylinder is detachably connected with the flange plate through an external thread arranged outside the piston rod end.
4. A large stroke hydraulic puller as claimed in any one of claims 1 to 3 wherein: the drawing ring holes are at least two groups and are coaxially arranged on the flange plates with different diameters.
5. The large stroke hydraulic puller according to claim 4, wherein: the hydraulic cylinder is communicated with a hydraulic pump through a hydraulic pipeline, and the hydraulic pump is a manual hydraulic pump or an electric hydraulic pump.
6. A large stroke hydraulic puller as claimed in any one of claims 1 to 3 wherein: the drawing hole is a strip-shaped hole which is arranged along the radial direction of the flange plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122192027.3U CN216180181U (en) | 2021-09-10 | 2021-09-10 | Large-stroke hydraulic drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122192027.3U CN216180181U (en) | 2021-09-10 | 2021-09-10 | Large-stroke hydraulic drawing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216180181U true CN216180181U (en) | 2022-04-05 |
Family
ID=80919153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122192027.3U Active CN216180181U (en) | 2021-09-10 | 2021-09-10 | Large-stroke hydraulic drawing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216180181U (en) |
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2021
- 2021-09-10 CN CN202122192027.3U patent/CN216180181U/en active Active
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