CN209599107U - Drawing device - Google Patents
Drawing device Download PDFInfo
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- CN209599107U CN209599107U CN201822096945.4U CN201822096945U CN209599107U CN 209599107 U CN209599107 U CN 209599107U CN 201822096945 U CN201822096945 U CN 201822096945U CN 209599107 U CN209599107 U CN 209599107U
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- bracket
- detent
- positioning
- slot
- drawbench
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- 230000008878 coupling Effects 0.000 claims abstract description 28
- 238000010168 coupling process Methods 0.000 claims abstract description 28
- 238000005859 coupling reaction Methods 0.000 claims abstract description 28
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003371 toe Anatomy 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a puller belongs to mechanical tool technical field. When using the embodiment of the utility model provides a when the centrifugal pump is dismantled to the puller, when dismantling shaft coupling or axle sleeve, the first end card of every tension frame in at least three tension frame is in a positioning groove, and the second end card of every tension frame is in the bottom of shaft coupling or axle sleeve, later makes the tension frame can be dismantled axle sleeve or shaft coupling through rotatory jackscrew. When the balance disc is disassembled, the two disassembling screw rods are deep into the threaded holes of the balance disc, and the balance disc can be disassembled by rotating the jackscrew. That is, using the utility model provides a when the centrifugal pump is dismantled to puller, through this device of puller alright dismantle shaft coupling, axle sleeve or balance disc on the centrifugal pump, need not reuse other devices and dismantle the centrifugal pump to can improve the dismantlement efficiency of dismantling the centrifugal pump.
Description
Technical field
The utility model relates to machine tool technical field, in particular to a kind of drawbench.
Background technique
Currently, needing to retract all parts in centrifugal pump in the maintenance process of centrifugal pump.For example, balancing frame, axis
Set, shaft coupling etc..These components be usually interference fit with the axis of centrifugal pump, therefore when dismantling these components, need to adopt
It is dismantled with drawbench.Wherein, interference fit is that the diameter of spindle is greater than the internal diameter of balancing frame or axle sleeve etc., but the diameter of axis
It is less than numerical threshold with the difference of the internal diameter of balancing frame or axle sleeve etc., the parts nests such as balancing frame or axle sleeve are on axis later.
Utility model content
The utility model provides a kind of drawbench, and the removal efficiency of disassembly centrifugal pump can be improved.The technical solution
It is as follows:
A kind of drawbench, which is characterized in that the drawbench includes jackscrew 1, detent component 2, at least three tension frames, 3 and
Two knockout screws 4；
The center position of the detent component 2 is provided at least one threaded hole, and the outer wall configurations of the jackscrew 1 have spiral shell
Line, the jackscrew 1 are embedded at least one described threaded hole, and the detent component 2 is along at least one threaded hole
Circumference includes at least four detent support arms, is provided with positioning through slot in each detent support arm；
The outer diameter of the first end of each tension frame 3 is greater than the internal diameter of the positioning through slot at least three tension frame 3,
The second end of each tension frame 3 is L-type structure, and the outer diameter of the second end of each tension frame 3 is less than the interior of the positioning through slot
Diameter, each tension frame 3 can be embedded in the positioning through slot by second end, with by three tension frames 3 dismantle from
Axle sleeve or shaft coupling in heart pump；
It there are the angle between the first detent support arm and the second detent support arm is 180 in at least four detents support arm
It spends, the outer diameter of the first end of each knockout screw 4 is greater than the internal diameter of the positioning through slot in described two knockout screws 4, each
The outer diameter of the second end of knockout screw 4 is less than the internal diameter of the positioning through slot, and each knockout screw 4 can be embedded in by second end
In the positioning through slot, to dismantle the balancing frame on the centrifugal pump by described two knockout screws 4.
Optionally, the detent component 2 includes multijaw bracket 21, and the center position of the multijaw bracket 21 is provided with screw thread
Hole, the multijaw bracket 21 threadingly hole circumference be configured at least four detents support arm.
Optionally, the detent component 2 includes three-jaw bracket 22 and two pawl brackets 23；
Two pawls bracket, 23 center position is provided with threaded hole, and the even circumferential in the two pawls bracket 23 threadingly hole is matched
It is equipped with the first detent support arm and the second detent support arm；
The center position of the three-jaw bracket 22 is provided with threaded hole, the even circumferential in the three-jaw bracket 22 threadingly hole
Configured at least three detent support arms；
The jackscrew 1 is embedded in the threaded hole of the three-jaw bracket 22 and the two pawls bracket 23.
Optionally, limiting stand is configured in each positioning through slot, by each tension frame 3 of limiting stand control or often
The distance between a knockout screw 4 and the jackscrew 1.
Optionally, the first end of each tension frame 3 is socket cap.
The beneficial effect of technical solution provided by the utility model is:
When using drawbench provided by the embodiment of the utility model disassembly centrifugal pump, when dismounting couplers or axle sleeve,
The first end of each tension frame at least three tension frames is stuck in a positioning groove, and the second end of each tension frame is stuck in
The bottom of shaft coupling or axle sleeve enables tension frame that can be disassembled axle sleeve or shaft coupling by rotating jackscrew later.
When dismantling balancing frame, the screw rod of a knockout screw passes through the positioning groove of the first detent support arm in two knockout screws, separately
The screw rod of one knockout screw passes through the positioning groove in the second detent support arm, the screw rod of latter two knockout screw be all deep into
In the threaded hole of balancing frame, by rotating jackscrew balancing frame is disassembled later.It that is to say, using the utility model
When the drawbench of offer dismantles centrifugal pump, by drawbench, this device can dismantle shaft coupling, axle sleeve on centrifugal pump
Or balancing frame, without reusing other devices disassembly centrifugal pump, so as to improve the removal efficiency of disassembly centrifugal pump.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of drawbench provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of another drawbench provided by the embodiment of the utility model；
Fig. 3 is the schematic diagram of the shaft coupling in a kind of drawbench disassembly centrifugal pump provided by the embodiment of the utility model；
Fig. 4 is the schematic diagram of the balancing frame in a kind of drawbench disassembly centrifugal pump provided by the embodiment of the utility model；
Fig. 5 is the structural schematic diagram of another drawbench provided by the embodiment of the utility model；
Fig. 6 is the structural schematic diagram of another drawbench provided by the embodiment of the utility model.
Appended drawing reference:
1: jackscrew；2: detent component；3: tension frame；4: knockout screw；21: multijaw bracket；22: three-jaw bracket；23: two pawls
Bracket.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Centrifugal pump includes the components such as pump case, axis, axle sleeve, shaft coupling and balancing frame.Wherein, the first end of axis is in pump case,
The second end of axis is except pump case.Axle sleeve and shaft coupling are nested in the second end of axis, and compared to shaft coupling, axle sleeve closer to
The end face of the second end of axis.Balancing frame is nested in the first end of axis.In the maintenance process of centrifugal pump, need to retract centrifugal pump
Balancer, axle sleeve and shaft coupling etc..
Fig. 1 is a kind of structural schematic diagram of drawbench provided by the embodiment of the utility model.As shown in Figure 1, drawbench packet
Include jackscrew 1, detent component 2, at least three tension frames 3 and two knockout screws 4.
The center position of detent component 2 is provided at least one threaded hole, and the outer wall configurations of jackscrew 1 have screw thread, and jackscrew 1 is embedding
Enter at least one threaded hole, detent component 2 includes at least four detent support arms along the circumference of at least one threaded hole, often
Positioning through slot is provided in a detent support arm.
The outer diameter of the first end of each tension frame 3 is greater than the internal diameter of positioning through slot, each pulling force at least three tension frames 3
The second end of frame 3 is L-type structure, and the outer diameter of the second end of each tension frame 3 is less than the internal diameter of positioning through slot, each tension frame
3 can be embedded in positioning through slot by second end, to dismantle the axle sleeve or shaft coupling on centrifugal pump by three tension frames 3.
It there are the angle between the first detent support arm and the second detent support arm is 180 degree at least four detent support arms, two
The outer diameter of the first end of each knockout screw 4 is greater than the internal diameter of positioning through slot in a knockout screw 4, and the of each knockout screw 4
The outer diameter at two ends is less than the internal diameter of positioning through slot, and each knockout screw 4 can be embedded in positioning through slot by second end, with logical
Cross the balancing frame on two disassembly centrifugal pumps of knockout screws 4.
When using drawbench provided by the embodiment of the utility model disassembly centrifugal pump, when dismounting couplers or axle sleeve,
The first end of each tension frame at least three tension frames is stuck in a positioning groove, and the second end of each tension frame is stuck in
The bottom of shaft coupling or axle sleeve enables tension frame that can be disassembled axle sleeve or shaft coupling by rotating jackscrew later.
When dismantling balancing frame, each knockout screw is deep into the threaded hole in balancing frame in two knockout screws, passes through rotation later
Turning jackscrew enables balancing frame to be disassembled.When using drawbench dismounting couplers, axle sleeve and balancing frame, do not have to use other
Device taps shaft coupling, axle sleeve or balancing frame, so that the interference fit between shaft coupling, axle sleeve or balancing frame and axis loosens, because
The safety of disassembly process can be improved in this.
Wherein, in actual use, as shown in Fig. 2, detent component may include multijaw bracket 21, in multijaw bracket 21
It is provided with threaded hole at heart position, the circumference in the threadingly hole of multijaw bracket 21 is configured at least four detent support arms.For example, Fig. 2 is
The top view of drawbench is provided with positioning through slot on each detent support arm as shown in Fig. 2, drawbench includes four detent support arms, and
And the first angle between detent support arm and the second detent support arm is 180 degree.And match in the positioning through slot of the first detent support arm
A tension frame and a knockout screw are set, a tension frame is also configured in the positioning through slot of the second detent support arm and one is torn open
Screw is unloaded, a tension frame is configured in the positioning through slot of other detent support arms.
It, can be logical from positioning by the knockout screw 4 in drawbench when dismantling the shaft coupling on centrifugal pump using drawbench
It is taken out in slot, uses drawbench dismounting couplers later.As shown in figure 3, the second end of the tension frame 3 in drawbench is L-type, it can
To be stuck in the bottom of shaft coupling, jackscrew 1 is withstood on the axis of centrifugal pump later, rotates jackscrew 1, so that jackscrew 1 is mobile, jackscrew 1 is moved
Detent support arm can be shortened at a distance from 3 second end of tension frame after dynamic.Since the axis in centrifugal pump is motionless, tension frame 3
Second end be stuck in the bottom of shaft coupling again, therefore 1 movement of jackscrew can shorten detent support arm at a distance from 3 second end of tension frame
Actually shaft coupling is enabled to move above in axis.It, may finally be by shaft coupling above axis by constantly rotating jackscrew 1
It disassembles.
When using drawbench disassembly centrifugal pump on balancing frame when, can by the tension frame 3 in drawbench from positioning through slot
Middle taking-up dismantles balancing frame using drawbench later.As shown in figure 4, the knockout screw 4 in drawbench can be deep into balancing frame
In threaded hole in, jackscrew 1 is withstood on the axis of centrifugal pump later, rotates jackscrew 1 so that jackscrew 1 is mobile, 1 movement of jackscrew
Detent support arm can be shortened afterwards at a distance from the port for the jackscrew 1 being deep into balancing frame.Due to centrifugal pump axis be it is motionless,
Knockout screw 4 is deep into the threaded hole in balancing frame again to connect with balancing frame, therefore 1 movement of jackscrew can shorten card
Position support arm actually enables to balancing frame to move above in axis at a distance from the port for the jackscrew 1 being deep into balancing frame.It is logical
After constantly rotating jackscrew 1, balancing frame may finally be disassembled above axis.
In addition, as shown in Figure 5 and Figure 6, detent component 2 may include 22 He of three-jaw bracket when actually using drawbench
Two pawl brackets 23.As shown in figure 5, two pawl brackets, 23 center position is provided with threaded hole, the circumference in two pawl brackets 23 threadingly hole
Uniformly it is configured with the first detent support arm and the second detent support arm.As shown in fig. 6, the center position of three-jaw bracket 22 is provided with screw thread
Hole, three-jaw bracket 22 threadingly hole even circumferential be configured at least three detent support arms.Jackscrew 1 is embedded in 22 He of three-jaw bracket
In the threaded hole of two pawl brackets 23.
When three-jaw bracket 23 includes three detent support arms, as shown in fig. 6, the center position of three-jaw bracket 23 is provided with spiral shell
Pit, and a tension frame 3 can be configured in the positioning through slot of each detent support arm.
In addition, in order to be easy to use when actually using drawbench disassembly centrifugal pump provided by the embodiment of the utility model,
Limiting stand can be configured in each positioning through slot, with by limiting stand control each tension frame 3 or each knockout screw 4 with
The distance between jackscrew 1.
For example, the balancing frame for being 50cm for diameter, it can be with the knockout screw in running fix through slot, so that knockout screw
The distance between jackscrew is 25cm, so that the distance between two knockout screws are 50cm.
In addition, the first end of each tension frame 3 can be circle in practical drawbench provided by the embodiment of the utility model
Column cap.Certainly, the first end of each tension frame 3 may be other shapes, such as square head, six square toes, for each pulling force
The shape of the first end of frame 3, the utility model embodiment is it is not limited here.
In addition, for the ease of rotating jackscrew 1, the round end of jackscrew 1 is configurable to cubic shape, is also configurable to
Hexagonal shape is also configured as other shapes certainly, and the utility model embodiment is it is not limited here.
When using drawbench provided by the embodiment of the utility model disassembly centrifugal pump, when dismounting couplers or axle sleeve,
The first end of each tension frame at least three tension frames is stuck in a positioning groove, and the second end of each tension frame is stuck in
The bottom of shaft coupling or axle sleeve enables tension frame that can be disassembled axle sleeve or shaft coupling by rotating jackscrew later.
When dismantling balancing frame, the screw rod of a knockout screw passes through the positioning groove of the first detent support arm in two knockout screws, separately
The screw rod of one knockout screw passes through the positioning groove in the second detent support arm, the screw rod of latter two knockout screw be all deep into
In the threaded hole of balancing frame, by rotating jackscrew balancing frame is disassembled later.It that is to say, using the utility model
When the drawbench of offer dismantles centrifugal pump, by drawbench, this device can dismantle shaft coupling, axle sleeve on centrifugal pump
Or balancing frame, without reusing other devices disassembly centrifugal pump, so as to improve the removal efficiency of disassembly centrifugal pump.
In conclusion the preferred embodiment of only the utility model, is not intended to limit the utility model, it is all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
1. a kind of drawbench, which is characterized in that the drawbench includes jackscrew (1), detent component (2), at least three tension frames
(3) and two knockout screws (4)；
The center position of the detent component (2) is provided at least one threaded hole, and the outer wall configurations of the jackscrew (1) have spiral shell
Line, the jackscrew (1) are embedded at least one described threaded hole, and the detent component (2) is along at least one described screw thread
The circumference in hole includes at least four detent support arms, is provided with positioning through slot in each detent support arm；
The outer diameter of the first end of each tension frame (3) is greater than the internal diameter of the positioning through slot at least three tension frame (3),
The second end of each tension frame (3) is L-type structure, and the outer diameter of the second end of each tension frame (3) is less than the positioning through slot
Internal diameter, each tension frame (3) can be embedded in the positioning through slot by second end, to pass through three tension frames
(3) axle sleeve or shaft coupling on centrifugal pump are dismantled；
It there are the angle between the first detent support arm and the second detent support arm is 180 degree in at least four detents support arm, institute
The outer diameter for stating the first end of each knockout screw (4) in two knockout screws (4) is greater than the internal diameter of the positioning through slot, each tears open
The outer diameter for unloading the second end of screw (4) is less than the internal diameter of the positioning through slot, and each knockout screw (4) can be embedding by second end
Enter in the positioning through slot, to dismantle the balancing frame on the centrifugal pump by described two knockout screws (4).
2. drawbench as described in claim 1, which is characterized in that the detent component (2) includes multijaw bracket (21), described
The center position of multijaw bracket (21) is provided with threaded hole, the multijaw bracket (21) threadingly hole circumference configured with it is described extremely
Few four detent support arms.
3. drawbench as described in claim 1, which is characterized in that the detent component (2) includes three-jaw bracket (22) and two
Pawl bracket (23)；
Two pawls bracket (23) center position is provided with threaded hole, and the even circumferential in the two pawls bracket (23) threadingly hole is matched
It is equipped with the first detent support arm and the second detent support arm；
The center position of the three-jaw bracket (22) is provided with threaded hole, the even circumferential in the three-jaw bracket (22) threadingly hole
Configured at least three detent support arms；
The jackscrew (1) is embedded in the threaded hole of the three-jaw bracket (22) and the two pawls bracket (23).
4. the drawbench as described in claims 1 to 3 is any, which is characterized in that limiting stand is configured in each positioning through slot, with
Each tension frame (3) or the distance between each knockout screw (4) and the jackscrew (1) are controlled by the limiting stand.
5. the drawbench as described in claims 1 to 3 is any, which is characterized in that the first end of each tension frame (3) is cylinder
Head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822096945.4U CN209599107U (en) | 2018-12-13 | 2018-12-13 | Drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822096945.4U CN209599107U (en) | 2018-12-13 | 2018-12-13 | Drawing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209599107U true CN209599107U (en) | 2019-11-08 |
Family
ID=68395826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822096945.4U Active CN209599107U (en) | 2018-12-13 | 2018-12-13 | Drawing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209599107U (en) |
-
2018
- 2018-12-13 CN CN201822096945.4U patent/CN209599107U/en active Active
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