CN112428218A - Manual gear pump shaft sleeve press-fitting device and press-fitting method - Google Patents
Manual gear pump shaft sleeve press-fitting device and press-fitting method Download PDFInfo
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- CN112428218A CN112428218A CN202011317955.1A CN202011317955A CN112428218A CN 112428218 A CN112428218 A CN 112428218A CN 202011317955 A CN202011317955 A CN 202011317955A CN 112428218 A CN112428218 A CN 112428218A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 238000003825 pressing Methods 0.000 claims description 54
- 230000009471 action Effects 0.000 claims description 10
- 230000002146 bilateral effect Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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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
- B25B27/06—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 inserting or withdrawing sleeves or bearing races
- B25B27/064—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 inserting or withdrawing sleeves or bearing races fluid driven
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- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses a manual gear pump shaft sleeve press-mounting device and a press-mounting method, wherein the device comprises a rack, a hydraulic driving mechanism, an upper pressure plate, a lower pressure plate, a pressure shaft, a positioning piece and an elastic piece, the rack comprises a base, an upright post and an upper top plate, the number of the pressure shaft, the positioning piece, the elastic piece and the upright post is two, and the elastic piece and the upright post are in one-to-one correspondence; the two ends of each upright column are respectively fixedly connected with the upper top plate and the base, each upright column is connected with the upper pressure plate in a sliding mode, the hydraulic driving mechanism is fixed on the upper top plate and is connected with the upper pressure plate, the upper pressure plate is fixedly connected with the lower pressure plate, the lower pressure plate is fixedly connected with the pressure shaft, each elastic piece is sleeved on the corresponding upright column, and the two ends of each elastic piece are respectively fixedly connected with the upper pressure plate and the base. The device can simultaneously complete the press mounting of the two shaft sleeves at one time, has high assembly precision, simple operation, low labor intensity, greatly shortened assembly time and high working efficiency.
Description
Technical Field
The invention relates to a manual gear pump shaft sleeve press-fitting device and a press-fitting method, and belongs to the technical field of press-fitting.
Background
The gear pump usually adopts an axial clearance automatic compensation mode to improve the working pressure, and the principle is that the end surface clearance is compensated with the working pressure in a floating way by installing a floating side plate. The floating side plate is in an 8 shape, and two inner holes are respectively provided with a shaft sleeve for supporting a gear shaft rotating at a high speed. The floating side plate assembly is a key part of the high-pressure gear pump, and in order to ensure the floatability of the floating side plate and reduce the abrasion of the floating side plate, the outer surface of the floating side plate and the inner surface of the shaft sleeve are required to have high coaxiality precision. The shaft sleeve and the floating side plate are in interference fit and need to be assembled in a press fitting mode. The existing press-fitting technology needs a press machine and a special press-fitting die, the early cost investment is high, the work efficiency of products is low, the floating side plate after press-fitting can not meet the coaxiality precision requirement, and unqualified products are easy to generate.
Disclosure of Invention
The invention aims to provide a manual gear pump shaft sleeve press-fitting device aiming at the technical problems in the prior art, the device can simultaneously press-fit two shaft sleeves at one time, has high assembly precision, simple operation and low labor intensity, greatly shortens the assembly time and has high working efficiency.
The invention further aims to provide a gear pump shaft sleeve press-fitting method.
The purpose of the invention can be achieved by adopting the following technical scheme:
a manual gear pump shaft sleeve press-mounting device comprises a rack, a hydraulic driving mechanism, an upper pressing plate, a lower pressing plate, two pressing shafts, positioning pieces and elastic pieces, wherein the rack comprises a base, two stand columns and an upper top plate;
the two ends of each upright column are respectively fixedly connected with the upper top plate and the base, each upright column is connected with the upper pressure plate in a sliding mode, the hydraulic driving mechanism is fixed on the upper top plate and is connected with the upper pressure plate, the upper pressure plate is fixedly connected with the lower pressure plate, the lower pressure plate is fixedly connected with the pressure shaft, each elastic piece is sleeved on the corresponding upright column, and the two ends of each elastic piece are respectively fixedly connected with the upper pressure plate and the base.
Further, every pressure axle includes spigot surface, working face and directional boss, spigot surface, working face and directional boss from the bottom up set gradually, the through-hole has been seted up to the base on every spigot surface of pressing the axle corresponds the position, the spigot surface cooperates with the through-hole that corresponds to the direction of motion of guide pressure axle, the cooperation of working face and axle sleeve hole face, directional boss cooperates with the axle sleeve recess to confirm axle sleeve circumference position.
Furthermore, the hydraulic driving mechanism comprises a pump body and a push rod, wherein the pump body is fixed on the upper top plate and is connected with the upper pressure plate through the push rod.
Furthermore, hydraulic drive mechanism still includes handle and oil return switch, handle and pump body swing joint for hand pump body is in order to provide thrust, the oil return switch is installed in the side of the pump body, is used for uninstallation pump body thrust to make the last item rise.
Furthermore, the hydraulic driving mechanism further comprises a pressing plate, and the pressing plate is fixed on the push rod.
Further, still include first fixing bolt and second fixing bolt, first fixing bolt and second fixing bolt are two, and two first fixing bolts set up for bilateral symmetry for fixed top board and holding down plate, two second fixing bolts set up for front and back symmetry for fixed holding down plate and pressure shaft.
Furthermore, the limiting device further comprises two limiting blocks, the two limiting blocks are arranged in a bilateral symmetry mode, the limiting blocks and the stand columns are in one-to-one correspondence, and each limiting block is fixed on the base and matched with the corresponding stand column to limit the lowest moving position of the upper pressure plate.
The novel upper pressing plate is characterized by further comprising four cover plates, wherein two cover plates are symmetrically arranged front and back, the other two cover plates are symmetrically arranged left and right, and each cover plate is fixed at the position, close to the middle, of the upper end of the upper pressing plate.
Furthermore, the positioning pieces are positioning pins, grooves are formed in the corresponding positions of the positioning pins of the base, and each positioning pin is installed in the corresponding groove and matched with the unloading groove of the floating side plate to position the floating side plate.
The other purpose of the invention can be achieved by adopting the following technical scheme:
the utility model provides a gear pump axle sleeve pressure equipment method, realizes based on above-mentioned manual gear pump axle sleeve pressure equipment device, the method includes:
placing a floating side plate to be pressed on a base, and matching an unloading groove of the floating side plate with a positioning piece;
unloading the thrust of the pump body of the hydraulic driving mechanism, and pushing the pressing shaft upwards to the top end under the action of the elastic piece;
sleeving the two shaft sleeves on the two pressing shafts respectively, and rotating the shaft sleeves to enable the grooves of the shaft sleeves to be matched with the directional bosses of the pressing shafts;
the pump body of the hydraulic driving mechanism is pressed by hand to provide thrust, the upper pressure plate drives the pressure shaft downwards to press the shaft sleeve into the floating side plate under the action of the push rod until the upper pressure plate reaches a limiting position, and the floating side plate and the shaft sleeve form a floating side plate assembly together;
the thrust of the pump body of the hydraulic driving mechanism is unloaded, the pressing shaft is pushed out of the floating side plate assembly upwards under the action of the elastic piece, and the floating side plate assembly is taken down to complete the one-time press mounting process.
Compared with the prior art, the invention has the following beneficial effects:
1. the device can press and mount two shaft sleeves of a floating side plate in the gear pump at the same time, the floating side plate is placed on the base for positioning, the two shaft sleeves are respectively sleeved on the two pressing shafts, the upper pressing plate is pressed through the hydraulic driving mechanism to drive the pressing shafts to press the shaft sleeves into the floating side plate, the upper pressing plate stops when reaching a limiting position, one-time press mounting is completed, the operation is simple, the labor intensity is low, the assembly time is greatly shortened, the working efficiency is high, the structure is simple, the production and the manufacture are simple, the cost is low, and the device is suitable for small-batch assembly production in the initial stage of.
2. The press shaft of the device comprises a guide surface, a working surface and an orientation boss, wherein the guide surface is matched with the through hole of the base to guide the movement direction of the press shaft, the working surface is matched with the inner hole surface of the shaft sleeve, the orientation boss is matched with the groove of the shaft sleeve to determine the circumferential direction of the shaft sleeve, and the guide surface of the press shaft is matched for guiding and the orientation boss for orientation through the guide of the upright post, so that the guide precision is high, the coaxiality precision of the press shaft sleeve is high, and the product quality is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic front view structure diagram of a manual gear pump shaft sleeve press-fitting device according to an embodiment of the present invention.
Fig. 2 is a schematic front sectional view of a manual gear pump shaft sleeve press-fitting device according to an embodiment of the present invention.
Fig. 3 is a schematic side sectional view of a manual gear pump shaft sleeve press-fitting device according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a pressing shaft in the manual gear pump shaft sleeve pressing device according to the embodiment of the invention.
Fig. 5 is a schematic structural view of a shaft sleeve in the gear pump according to the embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a floating side plate in a gear pump according to an embodiment of the present invention.
The device comprises an upper pressing plate 1, a lower pressing plate 2, a pressing shaft 3, a guiding surface 301, a working surface 302, a directional boss 303, a positioning piece 4, an elastic piece 5, a base 6, a column 7, an upper top plate 8, a first fixing bolt 9, a second fixing bolt 10, a pump body 11, a push rod 12, a handle 13, an oil return switch 14, a pressing plate 15, a shaft sleeve 16, a shaft sleeve 1601, a shaft sleeve groove 1602, a shaft sleeve inner hole surface 17, a floating side plate 1701, an unloading groove 1701, a limiting block 18, a cover plate 19 and a hexagon bolt 20.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Example (b):
as shown in fig. 1-3, this embodiment provides a manual formula gear pump axle sleeve pressure equipment device, the device includes the frame, hydraulic drive mechanism, top board 1, holding down plate 2, last axle 3, setting element 4 and elastic component 5, the frame includes base 6, stand 7 and top board 8, last axle 3, setting element 4, elastic component 5 and stand 7 are two, two last axles 3 are the front and back symmetry setting, two setting elements 4, two elastic components 5 and two stands 7 are the bilateral symmetry setting.
The two ends of each upright post 7 are respectively fixedly connected with the upper top plate 8 and the base 6, specifically, the upper end of the left upright post 7 is fixedly connected with the left side of the upper top plate 8, the lower end of the left upright post 7 is fixedly connected with the left side of the base 6, the upper end of the right upright post 7 is fixedly connected with the right side of the upper top plate 8, and the lower end of the right upright post 7 is fixedly connected with the right side of the base 6; each upright post 7 is connected with the upper pressure plate 1 in a sliding way.
The hydraulic driving mechanism is fixed on the upper top plate 8, particularly fixed in the middle of the upper top plate 8, connected with the upper pressure plate 1 and used for driving the upper pressure plate 1 to press downwards, and the lower pressure plate 2 and the pressure shaft 3 also press downwards along with the upper pressure plate 1; further, the hydraulic driving mechanism comprises a pump body 11 and a push rod 12, the pump body 11 is fixed on the upper top plate 8 and is connected with the upper pressure plate 1 through the push rod 12, thrust is provided through the pump body 11, and the upper pressure plate 1 is pressed downwards under the action of the push rod 12.
In order to operate the hydraulic driving mechanism conveniently, the hydraulic driving mechanism of the embodiment further comprises a handle 13 and an oil return switch 14, the handle 13 is movably connected with the pump body 11 and used for manually pressing the pump body 11 to provide thrust, and the oil return switch 14 is installed on the side surface of the pump body 11 and used for unloading the thrust of the pump body 11 to lift the pressure shaft 3; in order to better push the upper pressure plate 1 to press downwards, the hydraulic driving mechanism of the embodiment further comprises a pressure plate 15, and the pressure plate 15 is fixed on the push rod 12.
As shown in fig. 1 to 5, a bushing recess 1601 and a bushing inner hole 1602 are provided on the bushing 16, each pressing shaft 3 of this embodiment includes a guide surface 301, a working surface 302 and a directional boss 303, the guide surface 301, the working surface 302 and the directional boss 303 are sequentially arranged from bottom to top, the base 1 is provided with a through hole at a position corresponding to the guide surface 301 of each pressing shaft 3, that is, the base 1 is provided with two through holes, the guide surface 301 is matched with the corresponding through hole to guide the moving direction of the pressing shaft 3, prevent the downward process of the pressing shaft 3 from deviating, improve the press-fitting precision, the working surface 302 is matched with the bushing inner hole 1602, the directional boss 303 is matched with the bushing recess 1601 to determine the circumferential direction of the bushing 16.
As shown in fig. 1 to 3 and 6, the floating side plate 17 is provided with an unloading groove 1701, the positioning element 4 of this embodiment is a positioning pin, the base 1 is provided with a groove at a corresponding position of each positioning pin, that is, the base 1 is provided with two grooves, and each positioning pin is installed in a corresponding groove and is matched with the unloading groove 1701 of the floating side plate 17 to position the floating side plate 17.
In order to limit the upper pressure plate 1, the manual gear pump shaft sleeve press-fitting device of the embodiment further comprises two limiting blocks 18, the two limiting blocks 18 are arranged in a bilateral symmetry manner, the limiting blocks 18 correspond to the upright columns 7 one by one, each limiting block 18 is fixed on the base and matched with the corresponding upright column 7 to limit the lowest moving position of the upper pressure plate, and specifically, each limiting block 18 is provided with a groove so as to be matched with the corresponding upright column 7.
The manual gear pump shaft sleeve press-fitting device of the embodiment further comprises four cover plates 19, wherein the two cover plates 19 are symmetrically arranged front and back, the other two cover plates 19 are symmetrically arranged left and right, each cover plate 19 is fixed at the position, close to the middle part, of the upper end of the upper pressure plate 1, and specifically, each cover plate 19 is fixed at the position, close to the middle part, of the upper end of the upper pressure plate 1 through a hexagon bolt 20.
In order to conveniently record the pressing position of the shaft sleeve 16, the upright post 7 of the embodiment is marked with scale marks; in order to fix the whole manual type gear pump shaft sleeve press-fitting device, U-shaped mounting holes are further formed in two sides of the base 6 of the embodiment.
As shown in fig. 1 to 6, the manual gear pump shaft sleeve press-fitting device of the present embodiment specifically includes the following working processes:
s1, since the two positioning members 4 are installed in the two grooves of the base 6, the floating side plate to be press-fitted is directly placed on the base 6, and the unloading slots 1701 of the floating side plate 17 are engaged with the positioning members 4.
And S2, opening the oil return switch 14, unloading the thrust of the pump body 11, pushing the pressing shaft 3 upwards to the top under the action of the elastic piece 5, and then closing the oil return switch 14.
S3, sleeving the two shaft sleeves 16 on the two pressing shafts 3 respectively, and rotating the shaft sleeves 16 to enable the shaft sleeve grooves 1601 to be matched with the directional bosses 303 of the pressing shafts 3.
S4, the pump body 11 is pressed by hand through the handle 13 to provide thrust, under the action of the push rod 12, the upper press plate 1 drives the press shaft 3 downwards to press the shaft sleeve 16 into the floating side plate 17 until the upper press plate 1 touches the limit block 18, namely the upper press plate 1 reaches the limit position, so that the floating side plate 17 and the shaft sleeve 16 form a floating side plate assembly together.
And S5, opening the oil return switch 14, unloading the thrust of the pump body 11, pushing the floating side plate assembly upwards by the pressing shaft 3 under the action of the elastic piece 5, and taking down the floating side plate assembly to complete one-time press fitting process.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or given otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In conclusion, the device can press and mount two shaft sleeves of a floating side plate in the gear pump at the same time, the floating side plate is placed on the base to be positioned, the two shaft sleeves are respectively sleeved on the two pressing shafts, the upper pressing plate is pressed through the hydraulic driving mechanism to drive the pressing shafts to press the shaft sleeves into the floating side plate, the upper pressing plate stops when reaching a limiting position, one-time press mounting is completed, the operation is simple, the labor intensity is low, the assembly time is greatly shortened, the working efficiency is high, the structure is simple, the production and the manufacture are simple, the cost is low, and the device is suitable for small-batch assembly production in the initial stage.
The above description is only for the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the scope of the present invention.
Claims (10)
1. A manual gear pump shaft sleeve press-mounting device is characterized by comprising a rack, a hydraulic driving mechanism, an upper pressing plate, a lower pressing plate, a pressing shaft, positioning pieces and elastic pieces, wherein the rack comprises a base, stand columns and an upper top plate, the number of the pressing shaft, the number of the positioning pieces, the number of the elastic pieces and the number of the stand columns are two, the two pressing shafts are symmetrically arranged in the front-back direction, the two positioning pieces, the two elastic pieces and the two stand columns are symmetrically arranged in the left-right direction, and the elastic pieces and the stand columns are in one-to-one correspondence;
the two ends of each upright column are respectively fixedly connected with the upper top plate and the base, each upright column is connected with the upper pressure plate in a sliding mode, the hydraulic driving mechanism is fixed on the upper top plate and is connected with the upper pressure plate, the upper pressure plate is fixedly connected with the lower pressure plate, the lower pressure plate is fixedly connected with the pressure shaft, each elastic piece is sleeved on the corresponding upright column, and the two ends of each elastic piece are respectively fixedly connected with the upper pressure plate and the base.
2. The manual gear pump shaft sleeve press-fitting device according to claim 1, wherein each pressing shaft comprises a guide surface, a working surface and a directional boss, the guide surface, the working surface and the directional boss are sequentially arranged from bottom to top, the base is provided with a through hole at a corresponding position of the guide surface of each pressing shaft, the guide surface is matched with the corresponding through hole to guide the moving direction of the pressing shaft, the working surface is matched with the inner hole surface of the shaft sleeve, and the directional boss is matched with a groove of the shaft sleeve to determine the circumferential direction of the shaft sleeve.
3. The manual gear pump shaft sleeve press-fitting device according to claim 1, wherein the hydraulic driving mechanism includes a pump body and a push rod, the pump body is fixed on the upper top plate and is connected with the upper pressure plate through the push rod.
4. A manual gear pump bushing press-fitting device as recited in claim 3, wherein the hydraulic driving mechanism further comprises a handle movably connected to the pump body for manually pressing the pump body to provide the pushing force, and an oil return switch mounted on a side surface of the pump body for unloading the pushing force of the pump body to lift the pressing shaft.
5. A manual gear pump bushing press fitting device according to claim 3, wherein the hydraulic driving mechanism further includes a pressure plate fixed to the push rod.
6. A manual gear pump shaft sleeve press-fitting device according to any one of claims 1-5, further comprising two first fixing bolts and two second fixing bolts, wherein the two first fixing bolts are arranged in a left-right symmetrical manner and used for fixing the upper pressing plate and the lower pressing plate, and the two second fixing bolts are arranged in a front-back symmetrical manner and used for fixing the lower pressing plate and the pressing shaft.
7. A manual gear pump shaft sleeve press-fitting device according to any one of claims 1 to 5, further comprising two limiting blocks, wherein the two limiting blocks are arranged in bilateral symmetry, the limiting blocks and the upright columns are in one-to-one correspondence, and each limiting block is fixed on the base and is matched with the corresponding upright column to limit the lowest moving position of the upper pressure plate.
8. A manual gear pump shaft sleeve press-fitting device according to any one of claims 1 to 5, further comprising four cover plates, two of the four cover plates are symmetrically arranged in front and back, the other two cover plates are symmetrically arranged in left and right, and each cover plate is fixed to a position near the middle of the upper end of the upper pressure plate.
9. A manual gear pump shaft sleeve press-fitting device according to any one of claims 1 to 5, wherein the positioning members are positioning pins, grooves are formed in the base at positions corresponding to the positioning pins, and each positioning pin is installed in the corresponding groove and is matched with the relief groove of the floating side plate to position the floating side plate.
10. A gear pump shaft sleeve press-fitting method, which is realized based on the manual gear pump shaft sleeve press-fitting device according to any one of claims 1 to 9, and is characterized by comprising the following steps:
placing a floating side plate to be pressed on a base, and matching an unloading groove of the floating side plate with a positioning piece;
unloading the thrust of the pump body of the hydraulic driving mechanism, and pushing the pressing shaft upwards to the top end under the action of the elastic piece;
sleeving the two shaft sleeves on the two pressing shafts respectively, and rotating the shaft sleeves to enable the grooves of the shaft sleeves to be matched with the directional bosses of the pressing shafts;
the pump body of the hydraulic driving mechanism is pressed by hand to provide thrust, the upper pressure plate drives the pressure shaft downwards to press the shaft sleeve into the floating side plate under the action of the push rod until the upper pressure plate reaches a limiting position, and the floating side plate and the shaft sleeve form a floating side plate assembly together;
the thrust of the pump body of the hydraulic driving mechanism is unloaded, the pressing shaft is pushed out of the floating side plate assembly upwards under the action of the elastic piece, and the floating side plate assembly is taken down to complete the one-time press mounting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011317955.1A CN112428218B (en) | 2020-11-23 | 2020-11-23 | Manual gear pump shaft sleeve press-fitting device and press-fitting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011317955.1A CN112428218B (en) | 2020-11-23 | 2020-11-23 | Manual gear pump shaft sleeve press-fitting device and press-fitting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112428218A true CN112428218A (en) | 2021-03-02 |
| CN112428218B CN112428218B (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011317955.1A Active CN112428218B (en) | 2020-11-23 | 2020-11-23 | Manual gear pump shaft sleeve press-fitting device and press-fitting method |
Country Status (1)
| Country | Link |
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| CN (1) | CN112428218B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114952705A (en) * | 2021-09-28 | 2022-08-30 | 宜宾市创世纪机械有限公司 | Motor gear press-in device |
| CN117549038A (en) * | 2024-01-12 | 2024-02-13 | 西安泵阀总厂有限公司 | Plug valve blocking sleeve press-fitting device |
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| CN214238004U (en) * | 2020-11-23 | 2021-09-21 | 华南理工大学 | Manual gear pump shaft sleeve press-fitting device |
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| EP2189247A2 (en) * | 2008-11-24 | 2010-05-26 | NOVOPRESS GMBH PRESSEN UND PRESSWERKZEUGE & CO. KG. | Drive device for a press device and press device with such a drive device |
| CN202742006U (en) * | 2012-09-11 | 2013-02-20 | 阜新北星液压有限公司 | Sliding bearing pressing tool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114952705A (en) * | 2021-09-28 | 2022-08-30 | 宜宾市创世纪机械有限公司 | Motor gear press-in device |
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| CN117549038B (en) * | 2024-01-12 | 2024-04-05 | 西安泵阀总厂有限公司 | Plug valve blocking sleeve press-fitting device |
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| Publication number | Publication date |
|---|---|
| CN112428218B (en) | 2024-01-09 |
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