CN214602952U - Decide power pressure equipment device - Google Patents
Decide power pressure equipment device Download PDFInfo
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- CN214602952U CN214602952U CN202120534583.1U CN202120534583U CN214602952U CN 214602952 U CN214602952 U CN 214602952U CN 202120534583 U CN202120534583 U CN 202120534583U CN 214602952 U CN214602952 U CN 214602952U
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Abstract
The utility model discloses a constant force press mounting device, which comprises a base, a guide post, an upper pressing plate, a lower stop seat and a spring, wherein the lower part of the guide post can move up and down in the base, the upper part of the guide post is fixedly connected with the lower part of the upper pressing plate, the upper part of the upper pressing plate is provided with a space for accommodating a press mounting valve structure, the lower stop seat is fixed on the top surface of the base and is sleeved on the periphery of the guide post; the lower part of the spring is arranged between the guide post and the lower stop seat, the upper part of the spring is sleeved on the periphery of the upper pressure plate, and the top end of the spring is abutted to the upper end table top of the upper pressure plate. The utility model discloses a select for use the spring of suitable stiffness coefficient and the displacement volume that the control removed, realize the accurate setting of pressure, the top board slow movement and the contact of locking seat downwards during the normal pressure equipment, can avoid crushing wound or crushing sealed position, guarantee that the subassembly sealed position has good size uniformity and leakproofness.
Description
Technical Field
The utility model relates to a check valve steel ball seal field, especially a decide power pressure equipment device.
Background
The landing gear retraction system is a comprehensive control system which takes hydraulic pressure as a normal retraction power source, takes cold air and electric power as a standby power source and controls retraction and extension of the landing gear and opening and closing of a landing gear cabin door. The undercarriage retraction and extension principle is as follows: after the undercarriage retraction switch sends a retraction command, the hydraulic electromagnetic valve switches on or off the pressure oil supply of the corresponding pipeline according to the retraction command, and the undercarriage and the cabin door thereof are opened or closed according to a certain sequence through the movement of the retraction actuator cylinder. When the undercarriage is folded, the incoming oil enters the upper folding cavity of the undercarriage cabin door actuator cylinder to fold the cabin door, and meanwhile, the oil in the lower cavity of the actuator cylinder returns to the oil tank through the one-way valve and the electromagnetic switch. Therefore, the control system realizes the operations of 'retraction', 'neutral' and 'lowering' which are in one-to-one correspondence with the three working positions of the hydraulic electromagnetic switch. The one-way valve in the hydraulic system can rapidly cut off the hydraulic oil circuit of the cabin door actuator cylinder after the action is finished, so that the cabin door can be ensured to stay at any position, and the falling phenomenon of the cabin door can be prevented.
In order to ensure that the one-way valve of the steel ball sealing structure has good sealing performance in the use process, the steel ball and the sealing part of the matched one-way valve need to be pressed and debugged during production. The traditional press fitting mainly adopts a mode that a single ejector rod directly extrudes steel balls in a check valve seal, the operation in the press fitting process is very inconvenient, the press fitting force value is difficult to keep constant, and the sealing part is easy to crush or damage.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, it is not enough to prior art, provide a level pressure equipment device, this level pressure equipment device can realize the pressure equipment of invariable power value, guarantees that the sealed position of zero subassembly has good dimensional consistency and leakproofness.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
a constant-force press-fitting device comprises a base, a guide post and an upper pressing plate, wherein the lower part of the guide post can move up and down in the base, the upper part of the guide post is fixedly connected with the lower part of the upper pressing plate, and the upper part of the upper pressing plate is provided with a space for accommodating a press-fitting valve structure; the lower part of the spring is arranged between the guide post and the lower stop seat, the upper part of the spring is sleeved on the periphery of the upper pressure plate, and the top end of the spring is abutted to the upper end table top of the upper pressure plate.
The magnitude of the pressure force value is calculated according to the requirement of the starting force value of the one-way valve of the steel ball sealing structure, and then a spring with a proper stiffness coefficient K is selected from F ═ KX (K is the stiffness coefficient of the spring, and X is the compression amount of the spring), wherein the compression amount X is the maximum displacement amount between the bottom surface of the upper pressure plate and the base. When the pressure is pressed with constant force, the pressure valve structure is arranged in the accommodating space at the upper end of the upper pressure plate, and force is applied to the surface of the steel ball from top to bottom to force the spring to elastically contract. Under the action of the elastic force of the spring, the upper pressure plate and the guide post can move downwards slowly along the base. When the pressure value reaches the set press-fitting force value, the upper end table surface of the upper pressure plate is just contacted with the upper top surface of the lower stop seat, and the purpose of press-fitting with constant force is achieved.
Furthermore, the top surface of the lower stop seat is a plane, and the bottom surface of the upper end table top of the upper pressure plate is a downward curved surface or a conical surface or is provided with a downward protrusion; or the top surface of the lower stop seat is an upward curved surface or a conical surface or is provided with an upward protrusion, and the bottom surface of the upper end table top of the upper pressure plate is a plane, so that the lower stop seat and the upper pressure plate can be just in point-surface contact.
Furthermore, the guide post is in threaded connection with the upper pressure plate, and the reserved stroke between the base and the upper pressure plate is controlled by adjusting the screwing length of the threads, so that the pressure is accurately set.
Furthermore, the lower part of the base is provided with a spoke type sensor which is arranged in an annular groove at the lower part of the base, and the spoke type sensor is externally connected with a digital display type push-pull dynamometer. When the lower stop seat is just in point-surface contact with the upper pressure plate, the stress of the whole constant-force press-fitting device is transmitted to the spoke-type sensor at the bottom, and then on-line measurement and automatic recording are realized through an external digital display type push-pull force meter, and a computer can be connected to observe a force value curve for numerical analysis.
Furthermore, the upper portion of base is equipped with the guide way, the guide post passes through the guide way is in the base reciprocates. The guide post and the guide groove of the base are in clearance fit, so that the upper pressing plate and the guide post are guaranteed to do axial linear reciprocating motion along the base, deflection is not prone to occurring in the free sliding process, and the sealing precision and the press fitting efficiency of steel ball sealing are effectively improved.
Furthermore, the valve press-fitting structure comprises a steel ball, a valve and a punch, wherein the steel ball is located in a valve hole of the valve, the punch is located above the steel ball, and the punch is externally connected with a press machine.
Further, the press-fitting valve structure is installed in a cylindrical hole in the upper portion of the upper pressure plate.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
1) the utility model discloses a level force pressure equipment device is through setting up the spring, and the top board slow movement and the contact of locking seat downwards when making the level force pressure equipment realize the accurate setting of pressure through the displacement volume of selecting for use the spring of suitable stiffness coefficient and control removal, reaches the purpose of level force pressure equipment.
2) The utility model discloses a decide power pressure equipment device operates very conveniently at the pressure equipment in-process, and the pressure equipment power value can keep invariable, can avoid crushing wound or crush the sealed position, guarantees that the sealed position of zero subassembly has good dimensional consistency and leakproofness.
3) The utility model discloses a decide power pressure equipment device can set up external spoke formula sensor as required, can also realize on-line measuring, automatic recording, can connect computer observation value curve, carries out numerical analysis. The constant-force press fitting process can dynamically read the force value and realize the online measurement of press fitting.
Drawings
In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it should be apparent that the drawings in the following description only relate to some embodiments of the present invention and are not intended to limit the present invention.
Fig. 1 is a cross-sectional view of an embodiment of the present invention.
Fig. 2 is a sectional view of an embodiment of the present invention in use.
Fig. 3 is a schematic diagram of an embodiment of the present invention.
Fig. 4 is a schematic view of an embodiment of the present invention in use.
Description of reference numerals:
1-a base; 2-a guide post; 3, an upper pressing plate; 4-a spring; 5-lower stop seat; 6-spoke sensors; 7-steel ball; 8-a valve; 9-punching head.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The utility model discloses at least one embodiment provides a decide power pressure equipment device, as shown in fig. 1, fig. 2, including base 1, guide post 2, top board 3, spring 4, lower locking seat 5, the upper end of base 1 is equipped with the guide way, guide post 2 passes through the guide way is in reciprocate in the base 1. The upper portion of guide post 2 with the lower part threaded connection of top board 3, the upper portion of top board 3 is equipped with the space that is used for holding pressure equipment valve structure, spring 4 establishes guide post 2 with the outer lane of top board 3, just the upper end of spring 4 with the upper end mesa looks butt of top board 3, lower stop seat 5 is established the outer lane of spring 4, and fixes base 1 top. The lower part of the base 1 is provided with a spoke type sensor 6, the spoke type sensor 6 is arranged in an annular groove at the lower part of the base 1, and the spoke type sensor 6 is externally connected with a digital display type push-pull dynamometer.
In order to enable the measurement of the pressing force value to be more accurate, the contact between the lower stop seat and the upper pressure plate is designed to be in point-surface contact. The top surface of the lower stop seat 5 is a plane, and the bottom surface of the upper end table top of the upper pressure plate 3 is a downward curved surface or a conical surface or is provided with a downward protrusion. Or, the top surface of the lower stop seat 5 is an upward curved surface or a conical surface or is provided with an upward protrusion, and the bottom surface of the upper end table top of the upper pressure plate 3 is a plane.
The press-fitting valve structure comprises a steel ball 7, a valve 8 and a punch 9, wherein the steel ball 7 is located in a valve hole of the valve 8, the punch 9 is located above the steel ball 7, the press-fitting valve structure is installed in a cylindrical hole in the upper end of the upper pressure plate 3, and the punch 9 is externally connected with a press machine.
When the device is used, a press-fitting tool is placed under a manual press, the base is positioned at a supporting position (if a spoke type sensor is not installed), the guide post is suspended in the guide groove of the base, the valve is placed in the accommodating space of the upper pressure plate according to the drawing 2, the steel ball is filled in the valve hole, then the punch connected with the press is placed above the steel ball 7, the pressure is slowly increased through the press until the upper pressure plate is just in point-surface contact with the lower stop seat, and the press-fitting force of the steel ball is the force value required by the steel ball to seal the one-way valve.
If the spoke type sensor is installed, after the pressure value reaches the set press-mounting force value, the lower stop seat is just in point-surface contact with the upper pressure plate, at the moment, the stress of the whole constant-force press-mounting device is transmitted to the spoke type sensor at the bottom, and if a digital display type push-pull force meter (shown in figure 4) or a computer is connected outside the wiring terminal of the sensor, the force value can be continuously acquired and read.
The utility model discloses a decide power pressure equipment device is through setting up the spring, and the top board slow movement and the contact of locking seat downwards when making the decide power pressure equipment, through the displacement volume of selecting for use the spring of suitable stiffness coefficient and control removal, realize the accurate setting of pressure, and it is very convenient to operate, and the pressure equipment power value can keep invariable, can avoid crushing wound or crush the sealed position, guarantees that the sealed position of spare part has good dimensional consistency and leakproofness.
The above-mentioned embodiments are illustrative and should not be construed as limiting the scope of the invention, which is defined by the appended claims, and all modifications of the equivalent forms of the present invention which are obvious to those skilled in the art after reading the present invention.
Claims (10)
1. A constant-force press-fitting device comprises a base (1), a guide post (2) and an upper pressing plate (3), wherein the lower part of the guide post (2) can move up and down in the base (1), the upper part of the guide post (2) is fixedly connected with the lower part of the upper pressing plate (3), and a space for accommodating a press-fitting valve structure is arranged on the upper part of the upper pressing plate (3), and the constant-force press-fitting device is characterized by further comprising a lower stop seat (5) and a spring (4), wherein the lower stop seat (5) is fixed on the top surface of the base (1) and sleeved on the periphery of the guide post (2); the lower part of the spring (4) is arranged between the guide post (2) and the lower stop seat (5), the upper part of the spring (4) is sleeved on the periphery of the upper pressing plate (3), and the top end of the spring (4) is abutted to the upper end table top of the upper pressing plate (3).
2. The constant-force press-fitting device according to claim 1, wherein the top surface of the lower stop seat (5) is a plane, and the bottom surface of the upper end table surface of the upper pressure plate (3) is a downward curved surface or a conical surface or is provided with a downward protrusion.
3. The constant-force press-fitting device according to claim 1, wherein the top surface of the lower stop seat (5) is an upward curved surface or a conical surface or is provided with an upward protrusion, and the bottom surface of the upper end table surface of the upper pressure plate (3) is a plane.
4. The constant-force press-fitting device according to claim 1, wherein the guide columns (2) are in threaded connection with the upper pressure plate (3).
5. Constant-force press-fitting device according to claim 1, characterized in that the lower part of the base (1) is provided with a spoke-type sensor (6), and the spoke-type sensor (6) is arranged in an annular groove at the lower part of the base (1).
6. A constant-force press-fitting device according to claim 5, wherein the spoke-type sensor (6) is externally connected with a digital display type push-pull force meter.
7. The constant-force press-fitting device according to claim 1, wherein a guide groove is formed in the upper portion of the base (1), and the guide column (2) moves up and down in the base (1) through the guide groove.
8. The constant-force press-fitting device according to claim 1, wherein the press-fitting valve structure comprises a steel ball (7), a valve (8) and a punch (9), the steel ball (7) is located in a valve hole of the valve (8), and the punch (9) is located above the steel ball (7).
9. A constant force press fitting device as claimed in claim 1, wherein said press fitting valve structure is mounted in a cylindrical hole in the upper part of said upper pressure plate (3).
10. A constant-force press-fitting device according to claim 8, wherein the punch (9) is externally connected with a press machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120534583.1U CN214602952U (en) | 2021-03-15 | 2021-03-15 | Decide power pressure equipment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120534583.1U CN214602952U (en) | 2021-03-15 | 2021-03-15 | Decide power pressure equipment device |
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| Publication Number | Publication Date |
|---|---|
| CN214602952U true CN214602952U (en) | 2021-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120534583.1U Active CN214602952U (en) | 2021-03-15 | 2021-03-15 | Decide power pressure equipment device |
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| CN (1) | CN214602952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749888A (en) * | 2022-04-23 | 2022-07-15 | 中国第一汽车股份有限公司 | Press-fitting control system, press-fitting equipment and press-fitting method of spring damper assembly |
-
2021
- 2021-03-15 CN CN202120534583.1U patent/CN214602952U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749888A (en) * | 2022-04-23 | 2022-07-15 | 中国第一汽车股份有限公司 | Press-fitting control system, press-fitting equipment and press-fitting method of spring damper assembly |
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