CN112428218B - 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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- CN112428218B CN112428218B CN202011317955.1A CN202011317955A CN112428218B CN 112428218 B CN112428218 B CN 112428218B CN 202011317955 A CN202011317955 A CN 202011317955A CN 112428218 B CN112428218 B CN 112428218B
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000003825 pressing Methods 0.000 claims abstract description 119
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 238000007667 floating Methods 0.000 claims description 45
- 230000009471 action Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000002146 bilateral effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses a manual gear pump shaft sleeve press-fitting device and a press-fitting method, wherein the device comprises a frame, a hydraulic driving mechanism, an upper pressing plate, a lower pressing plate, a press shaft, a positioning piece and an elastic piece, wherein the frame comprises a base, an upright post and an upper top plate, the number of the press 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 post are respectively fixedly connected with the upper top plate and the base, each upright post is in sliding connection with the upper pressing plate, the hydraulic driving mechanism is fixed on the upper top plate and is connected with the upper pressing plate, the upper pressing plate is fixedly connected with the lower pressing plate, the lower pressing plate is fixedly connected with the pressing shaft, each elastic piece is sleeved on the corresponding upright post, and the two ends of each elastic piece are respectively fixedly connected with the upper pressing plate and the base. The device can finish the press fitting of two shaft sleeves at one time, and has the advantages of 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 automatic axial clearance compensation mode to improve working pressure, and the principle is that the floating compensation of the end face clearance along with the working pressure is realized by installing a floating side plate. The floating side plate is 8-shaped, and the two inner holes are provided with shaft sleeves for supporting the gear shaft rotating at high speed. The floating side plate assembly is a key component 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 are assembled in a press-fit mode. The existing press mounting technology needs to use a press machine and a special press mounting die, the early-stage cost investment is high, the product work efficiency is low, the floating side plate after press mounting cannot meet the coaxiality precision requirement, and unqualified products are easy to produce.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provides a manual gear pump shaft sleeve press-fitting device which can simultaneously press-fit two shaft sleeves at one time, and has the advantages of high assembly precision, simplicity in operation, low labor intensity, great shortening of assembly time and high working efficiency.
The invention further aims to provide a method for press-fitting the gear pump shaft sleeve.
The aim of the invention can be achieved by adopting the following technical scheme:
the manual gear pump shaft sleeve press-fitting device comprises a frame, a hydraulic driving mechanism, an upper pressing plate, a lower pressing plate, a pressing shaft, positioning pieces and elastic pieces, wherein the frame comprises a base, an upright post and an upper top plate, the number of the pressing shaft, the positioning pieces, the elastic pieces and the upright post is two, the two pressing shafts are symmetrically arranged in front-back mode, the two positioning pieces, the two elastic pieces and the two upright posts are symmetrically arranged in left-right mode, and the elastic pieces and the upright posts are in one-to-one correspondence;
the two ends of each upright post are respectively fixedly connected with the upper top plate and the base, each upright post is in sliding connection with the upper pressing plate, the hydraulic driving mechanism is fixed on the upper top plate and is connected with the upper pressing plate, the upper pressing plate is fixedly connected with the lower pressing plate, the lower pressing plate is fixedly connected with the pressing shaft, each elastic piece is sleeved on the corresponding upright post, and the two ends of each elastic piece are respectively fixedly connected with the upper pressing plate and the base.
Further, each pressing shaft comprises a guide surface, a working surface and a directional boss, the guide surfaces, the working surfaces and the directional bosses are sequentially arranged from bottom to top, through holes are formed in corresponding positions of the guide surfaces of each pressing shaft, the guide surfaces are matched with the corresponding through holes to guide the movement direction of the pressing shafts, the working surfaces are matched with the inner hole surfaces of the shaft sleeves, and the directional bosses are matched with the grooves of the shaft sleeves to determine the circumferential direction of the shaft sleeves.
Further, 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 pressing plate through the push rod.
Further, the hydraulic driving mechanism further comprises a handle and an oil return switch, wherein the handle is movably connected with the pump body and used for providing thrust for the hand pump body, and the oil return switch is arranged on the side face of the pump body and used for unloading the thrust of the pump body to enable the pressing shaft to rise.
Further, the hydraulic driving mechanism further comprises a pressing plate, and the pressing plate is fixed on the push rod.
Further, still include first fixed bolt and second fixed bolt, first fixed bolt and second fixed bolt are two, and two first fixed bolts are bilateral symmetry setting for fixed top board and holding down plate, and two second fixed bolts are the front and back symmetry setting for fixed holding down plate and pressure axle.
Further, the device further comprises two limiting blocks, wherein the two limiting blocks are arranged in a bilateral symmetry mode, the limiting blocks and the upright posts are in one-to-one correspondence, and each limiting block is fixed on the base and matched with the corresponding upright post so as to limit the lowest moving position of the upper pressing plate.
Further, the device further comprises four cover plates, wherein two cover plates are arranged in a front-back symmetrical mode, the other two cover plates are arranged in a left-right symmetrical mode, and each cover plate is fixed at the position, close to the middle, of the upper end of the upper pressing plate.
Further, the locating piece is a locating pin, a groove is formed in the base at the corresponding position of each locating pin, and each locating pin is installed in the corresponding groove and matched with the unloading groove of the floating side plate so as to locate the floating side plate.
The other object of the invention can be achieved by adopting the following technical scheme:
the gear pump shaft sleeve press-fitting method is realized based on the manual gear pump shaft sleeve press-fitting device, and comprises the following steps of:
placing a floating side plate to be pressed on a base, so that an unloading groove of the floating side plate is matched with a positioning piece;
unloading the pump thrust of the hydraulic driving mechanism, and pushing the pressing shaft to the top under the action of the elastic piece;
respectively sleeving the two shaft sleeves on the two pressing shafts, and rotating the shaft sleeves to enable the shaft sleeve grooves to be matched with the directional bosses of the pressing shafts;
the pump body of the manual hydraulic driving mechanism is used for providing thrust, and under the action of the push rod, the upper pressing plate downwards drives the pressing shaft to press the shaft sleeve into the floating side plate until the upper pressing plate reaches the limit position, so that the floating side plate and the shaft sleeve form a floating side plate assembly together;
and unloading the pump body thrust of the hydraulic driving mechanism, pushing the pressing shaft out of the floating side plate assembly under the action of the elastic piece, and taking down the floating side plate assembly to finish the one-time press-fitting process.
Compared with the prior art, the invention has the following beneficial effects:
1. the device can press-fit two shaft sleeves of the 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 sleeved on the two pressing shafts respectively, the upper pressing plate is pressed by the hydraulic driving mechanism, the shaft sleeves are driven to press the floating side plate by the pressing shafts, the upper pressing plate stops when reaching the limiting position, the first press-fit 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 early development stage of the gear pump.
2. The press shaft of the device comprises the guide surface, the working surface and the directional 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 directional boss is matched with the groove of the shaft sleeve to determine the circumferential direction of the shaft sleeve, the guide surface of the matched press shaft is guided by the upright post to orient the directional boss, the guide precision is high, the coaxiality precision of the press-mounting 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 that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic front view of a manual gear pump shaft sleeve press-fitting device according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a front sectional structure of a manual gear pump shaft sleeve press-fitting device according to an embodiment of the present invention.
Fig. 3 is a schematic side 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 an embodiment of the invention.
Fig. 5 is a schematic structural view of a shaft sleeve in a gear pump according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a floating side plate in a gear pump according to an embodiment of the present invention.
The device comprises a 1-upper pressing plate, a 2-lower pressing plate, a 3-pressing shaft, a 301-guiding surface, a 302-working surface, a 303-directional boss, a 4-positioning piece, a 5-elastic piece, a 6-base, a 7-upright post, an 8-upper top plate, a 9-first fixing bolt, a 10-second fixing bolt, a 11-pump body, a 12-push rod, a 13-handle, a 14-oil return switch, a 15-pressing plate, a 16-shaft sleeve, a 1601-shaft sleeve groove, a 1602-shaft sleeve inner hole surface, a 17-floating side plate, a 1701-unloading groove, an 18-limiting block, a 19-cover plate and a 20-hexagonal bolt.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
Examples:
as shown in fig. 1 to 3, this embodiment provides a manual gear pump shaft sleeve press-fitting device, which comprises a frame, a hydraulic driving mechanism, an upper pressing plate 1, a lower pressing plate 2, a pressing shaft 3, a positioning piece 4 and an elastic piece 5, wherein the frame comprises a base 6, two stand columns 7 and an upper top plate 8, the pressing shaft 3, the positioning piece 4, the elastic piece 5 and the stand columns 7 are all arranged in a front-back symmetrical manner, and the two pressing shafts 3, the two positioning pieces 4, the two elastic pieces 5 and the two stand columns 7 are all arranged in a left-right symmetrical manner.
The two ends of each upright post 7 are respectively and 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 7 is slidingly connected to the upper platen 1.
The upper pressing plate 1 is fixedly connected with the lower pressing plate 2, the lower pressing plate 2 is fixedly connected with the pressing shaft 3, the upper pressing plate 1 is arranged along the left-right direction, the lower pressing plate 2 is arranged along the front-back direction, the lower pressing plate 2 is fixedly connected with the pressing shaft 3 for realizing the fixed connection of the upper pressing plate 1 and the lower pressing plate 2, the manual gear pump shaft sleeve press-fitting device of the embodiment further comprises a first fixing bolt 9 and a second fixing bolt 10, the two first fixing bolts 9 are symmetrically arranged in the left-right direction and are used for fixing the upper pressing plate 1 and the lower pressing plate 2, and the two second fixing bolts 10 are symmetrically arranged in the front-back direction and are used for fixing the lower pressing plate 2 and the pressing shaft 3.
The hydraulic driving mechanism is fixed on the upper top plate 8, specifically fixed in the middle of the upper top plate 8, and connected with the upper pressing plate 1, and is used for driving the upper pressing plate 1 to press downwards, and the lower pressing plate 2 and the pressing shaft 3 also press downwards along with the upper pressing plate 1; further, the hydraulic driving mechanism comprises a pump body 11 and a push rod 12, wherein the pump body 11 is fixed on the upper top plate 8 and is connected with the upper pressing plate 1 through the push rod 12, thrust is provided through the pump body 11, and the upper pressing plate 1 is pressed downwards under the action of the push rod 12.
In order to facilitate the operation of the hydraulic driving mechanism, the hydraulic driving mechanism of the embodiment further comprises a handle 13 and an oil return switch 14, wherein the handle 13 is movably connected with the pump body 11 and is used for manually pressing the pump body 11 to provide thrust, and the oil return switch 14 is arranged on the side surface of the pump body 11 and is used for unloading the thrust of the pump body 11 to enable the pressing shaft 3 to rise; in order to better push the upper platen 1 downward, the hydraulic driving mechanism of the present embodiment further includes a platen 15, and the platen 15 is fixed to the push rod 12.
As shown in fig. 1 to 5, a sleeve groove 1601 and a sleeve inner hole surface 1602 are formed on a sleeve 16, each press shaft 3 in 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 disposed from bottom to top, a through hole is formed in a corresponding position of the guide surface 301 of each press shaft 3 in the base 1, that is, two through holes are formed in the base 1, the guide surface 301 is matched with the corresponding through holes to guide the movement direction of the press shaft 3, so as to prevent the downward process of the press shaft 3 from shifting, improve the press mounting precision, the working surface 302 is matched with the sleeve inner hole surface 1602, and the directional boss 303 is matched with the sleeve groove 1601 to determine the circumferential direction of the sleeve 16.
As shown in fig. 1 to 3 and 6, the floating side plate 17 is provided with an unloading groove 1701, the positioning piece 4 of the 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 the corresponding groove and is matched with the unloading groove 1701 of the floating side plate 17 to position the floating side plate 17.
The elastic component 5 is the relation of one-to-one with stand 7, every elastic component 5 cover is established on stand 7 that corresponds, the both ends of every elastic component 5 respectively with top board 1, base 6 fixed connection, when hydraulic drive mechanism stops driving, can make pressure axle 3 push away upwards under the effect of elastic component 5, specifically, elastic component 5 of this embodiment is the spring, the upper end and the left side fixed connection of top board 1 of left side spring, the lower extreme and the left side fixed connection of base 6 of left side spring, the upper end and the right side fixed connection of top board 1 of right side spring, the lower extreme and the right side fixed connection of base 6 of right side spring.
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, wherein the two limiting blocks 18 are arranged in a bilateral symmetry manner, the limiting blocks 18 and the upright posts 7 are in one-to-one correspondence, each limiting block 18 is fixed on the base and matched with the corresponding upright post 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 post 7.
The manual gear pump shaft sleeve press-fitting device of the embodiment further comprises four cover plates 19, wherein 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 a position, close to the middle, of the upper end of the upper pressing plate 1, and specifically, each cover plate 19 is fixed at a position, close to the middle, of the upper end of the upper pressing plate 1 through a hexagon bolt 20.
In order to be convenient for recording the pressing position of the shaft sleeve 16, scale marks are carved on the upright post 7 of the embodiment; in order to fix the whole manual 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 working process of the manual gear pump shaft sleeve press-fitting device of the embodiment is specifically as follows:
s1, as the two positioning pieces 4 are installed in the two grooves of the base 6, the floating side plate to be pressed is directly placed on the base 6, so that the unloading groove 1701 of the floating side plate 17 is matched with the positioning pieces 4.
S2, opening the oil return switch 14, unloading the thrust of the pump body 11, pushing the pressing shaft 3 to the top under the action of the elastic piece 5, and then closing the oil return switch 14.
S3, respectively sleeving the two shaft sleeves 16 on the two pressing shafts 3, and rotating the shaft sleeves 16 to enable the shaft sleeve grooves 1601 to be matched with the orientation 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 pressing plate 1 is enabled to downwards drive the pressing shaft 3 to press the shaft sleeve 16 into the floating side plate 17 until the upper pressing plate 1 touches the limiting block 18, namely, the upper pressing plate 1 reaches the limiting position, and the floating side plate 17 and the shaft sleeve 16 form a floating side plate assembly together.
S5, opening an oil return switch 14, unloading the thrust of the pump body 11, enabling the pressing shaft 3 to push out of the floating side plate assembly upwards under the action of the elastic piece 5, and taking down the floating side plate assembly to finish the one-time press-fitting process.
In the description of the present invention, it should be noted that, unless explicitly stated and agreed otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In summary, the device disclosed by the invention can be used for simultaneously press-fitting two shaft sleeves of the floating side plate in the gear pump, the floating side plate is placed on the base for positioning, the two shaft sleeves are respectively sleeved on the two press shafts, the upper pressing plate is pressed by the hydraulic driving mechanism, the shaft sleeves are pressed into the floating side plate by the driving press shaft, the upper pressing plate stops when reaching the limit position, the first press-fitting 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 early development stage of the gear pump.
The above-mentioned embodiments are only 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 make equivalent substitutions or modifications according to the technical solution and the inventive concept of the present invention within the scope of the present invention disclosed in the present invention patent, and all those skilled in the art belong to the protection scope of the present invention.
Claims (6)
1. The manual gear pump shaft sleeve press-fitting device is characterized by comprising a frame, a hydraulic driving mechanism, an upper pressing plate, a lower pressing plate, a pressing shaft, positioning pieces and elastic pieces, wherein the frame comprises a base, an upright post and an upper top plate, the number of the pressing shaft, the positioning pieces, the elastic pieces and the upright post is two, the two pressing shafts are symmetrically arranged in the front-back direction, the two positioning pieces, the two elastic pieces and the two upright posts are symmetrically arranged in the left-right direction, and the elastic pieces and the upright posts are in a one-to-one correspondence;
the two ends of each upright post are respectively and fixedly connected with the upper top plate and the base, each upright post is in sliding connection with the upper pressing plate, the hydraulic driving mechanism is fixed on the upper top plate and is connected with the upper pressing plate, the upper pressing plate is fixedly connected with the lower pressing plate, the lower pressing plate is fixedly connected with the pressing shaft, each elastic piece is sleeved on the corresponding upright post, and the two ends of each elastic piece are respectively and fixedly connected with the upper pressing plate and the base;
each pressing shaft comprises a guide surface, a working surface and a directional boss, wherein the guide surface, the working surface and the directional boss are sequentially arranged from bottom to top, a through hole is formed in the corresponding position of the guide surface of each pressing shaft, the guide surface is matched with the corresponding through hole to guide the movement 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 the groove of the shaft sleeve to determine the circumferential direction of the shaft sleeve;
the hydraulic driving mechanism comprises a pump body, a push rod and a pressing plate, wherein the pump body is fixed on the upper top plate and is connected with the upper pressing plate through the push rod, and the pressing plate is fixed on the push rod;
the locating piece is a locating pin, a groove is formed in the base at the corresponding position of each locating pin, and each locating pin is installed in the corresponding groove and matched with the unloading groove of the floating side plate to locate the floating side plate.
2. The manual gear pump shaft sleeve press-fitting device according to claim 1, wherein the hydraulic driving mechanism further comprises a handle and an oil return switch, the handle is movably connected with the pump body and used for providing thrust force for the manual pump body, and the oil return switch is arranged on the side face of the pump body and used for unloading the thrust force of the pump body to enable the press shaft to rise.
3. The manual gear pump shaft sleeve press-fitting device according to any one of claims 1-2, further comprising two first fixing bolts and two second fixing bolts, wherein the two first fixing bolts are symmetrically arranged on the left and right for fixing the upper pressing plate and the lower pressing plate, and the two second fixing bolts are symmetrically arranged on the front and rear for fixing the lower pressing plate and the pressing shaft.
4. The manual gear pump shaft sleeve press-fitting device according to any one of claims 1-2, further comprising two limiting blocks, wherein the two limiting blocks are symmetrically arranged left and right, the limiting blocks and the upright posts are in one-to-one correspondence, and each limiting block is fixed on the base and matched with the corresponding upright post so as to limit the lowest movement position of the upper pressing plate.
5. The manual gear pump shaft sleeve press-fitting device according to any one of claims 1 to 2, 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 a position, close to the middle, of the upper end of the upper pressing plate.
6. A method for press-fitting a gear pump shaft sleeve, based on the manual gear pump shaft sleeve press-fitting device according to any one of claims 1 to 5, characterized in that the method comprises:
placing a floating side plate to be pressed on a base, so that an unloading groove of the floating side plate is matched with a positioning piece;
unloading the pump thrust of the hydraulic driving mechanism, and pushing the pressing shaft to the top under the action of the elastic piece;
respectively sleeving the two shaft sleeves on the two pressing shafts, and rotating the shaft sleeves to enable the shaft sleeve grooves to be matched with the directional bosses of the pressing shafts;
the pump body of the manual hydraulic driving mechanism is used for providing thrust, and under the action of the push rod, the upper pressing plate downwards drives the pressing shaft to press the shaft sleeve into the floating side plate until the upper pressing plate reaches the limit position, so that the floating side plate and the shaft sleeve form a floating side plate assembly together;
and unloading the pump body thrust of the hydraulic driving mechanism, pushing the pressing shaft out of the floating side plate assembly under the action of the elastic piece, and taking down the floating side plate assembly to finish the one-time press-fitting 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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN112428218A CN112428218A (en) | 2021-03-02 |
| CN112428218B true CN112428218B (en) | 2024-01-09 |
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Families Citing this family (2)
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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 |
| 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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| 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 |
| CN204748509U (en) * | 2015-06-25 | 2015-11-11 | 浙江双飞无油轴承股份有限公司 | Dress pressure equipment of gear pump floating axle cover sub -assembly is put |
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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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| CN112428218A (en) | 2021-03-02 |
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