CN203797240U - Self-aligning and sealing mechanism of hydrostatic testing machine - Google Patents
Self-aligning and sealing mechanism of hydrostatic testing machine Download PDFInfo
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- CN203797240U CN203797240U CN201420135201.8U CN201420135201U CN203797240U CN 203797240 U CN203797240 U CN 203797240U CN 201420135201 U CN201420135201 U CN 201420135201U CN 203797240 U CN203797240 U CN 203797240U
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- sealing head
- sealing
- travelling car
- aligning
- testing machine
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Abstract
The utility model relates to a self-aligning and sealing mechanism of a hydrostatic testing machine. The self-aligning and sealing mechanism comprises a mobile car, a connecting seat and a sealing head. The connecting seat is fixed at the front end of the mobile car, the front end face of the connecting seat is an arc-shaped surface, the rear end face of the sealing head is a spherical surface butted against the arc-shaped surface, the sealing head and the connecting seat form a spherical hinge structure, and the rear end face of the sealing head is a sealing portion for sealing the end face of a pipeline. Since the sealing head and the connecting seat form the spherical hinge structure, when the sealing portion is in contact with the end face of a steel pipe, the sealing head is pushed by the mobile car to rotate along the arc-shaped surface of the connecting seat, the sealing portion is enabled to adapt to and hermetically cling to the end face of the steel pipe, and reliable and good sealing effect can be guaranteed even if the steel pipe deforms. The self-aligning and sealing mechanism can be applied to the hydrostatic testing machine.
Description
Technical field
The utility model relates to steel pipe manufacture and manufacture field, particularly relates to a kind of hydrostatic testing machine self-aligning sealing mechanism.
Background technique
The sealing of existing hydrostatic testing machine is to contact sealing with Steel pipe end surface by slip-on head (or sealing head), the sealing head of hydrostatic testing machine one end is fixed, for sealed steel pipe left end, the slip-on head 18 of the other end is along with dolly 19 drives gradually near and is close to steel pipe 20 right sides, and its principle as shown in Figure 1.But, steel pipe likely occurs that in forming process slight deformation affects coaxality, it finally shows its end slope, can not be completely parallel with slip-on head, in the time that slip-on head 18 is pressed close to steel pipe 20 end face, because slip-on head 18 can only move on horizontal plane, be difficult to complete sealed steel pipe 20, cause seal failure, cannot complete the hydrostatic test.
Model utility content
In order to overcome above-mentioned technical problem, the purpose of this utility model is to provide a kind of hydrostatic testing machine self-aligning sealing mechanism that can reliable sealing.
The technological scheme that the utility model adopts is:
A kind of hydrostatic testing machine self-aligning sealing mechanism, comprise travelling car, connecting base and sealing head, described connecting base is fixed on the front end of travelling car, the front-end face of described connecting base is arc shaped surface, the ear end face of described sealing head is the sphere being connected on arc shaped surface, described sealing head and connecting base form spherical hinge structure, and the front-end face of sealing head is the sealed department of closed conduit end face.
As the further improvement of technique scheme, described sealing head is provided with Equilibrator, and described Equilibrator provides restoring force in the time that arc shaped surface rotates at sealing head, and described Equilibrator connects travelling car.
As the further improvement of technique scheme, described Equilibrator comprises some balancing pull rods, what each balancing pull rod was vertical passes sealing head and penetrates in travelling car, described balancing pull rod comprises the front portion that is positioned at sealing head and the rear portion that is positioned at travelling car, described front portion has ball strand head, in described sealing head, be fixed with and a ball strand hinged ball twisted seat coordinating, the periphery movable sheath at described rear portion is connected to dish spring, the front end of described dish spring is connected to ball pad, in described travelling car, be fixedly connected with and the hinged hinge bowl coordinating of ball pad, the rear end of described dish spring is connected to spacer, described spacer screw thread is fixedly connected on balancing pull rod.Balancing pull rod along circumferential arrangement, makes sealing head in the time that work is idle, return back to original position by the effect of dish spring on sealing head.
As the further improvement of technique scheme, described sealing head edge is connected to dog clutch, and described dog clutch is slidably connected to the edge of connecting base, and the sphere of sealing head is clamped on the arc shaped surface of connecting base.The edge of connecting base and the junction surface of dog clutch are also sphere simultaneously, also do not affect the degrees of freedom of sealing head in ensureing clamping.
As the further improvement of technique scheme, described travelling car is provided with venting gas appliance and collection comb, described venting gas appliance connects collection comb, is provided with the outlet pipe that is communicated with venting gas appliance in described collection comb, and the front end of described outlet pipe passes sealing head and is fixed on sealing head.
As the further improvement of technique scheme, the rear end of described travelling car is provided with connecting plate, and described connecting plate is provided with the plunger cylinder that drives travelling car to use.
The beneficial effects of the utility model are: the utility model sealing head and connecting base form spherical hinge structure, in the time of sealed department contact Steel pipe end surface, promotion lower seal head at travelling car rotates along the arc shaped surface of connecting base, sealed department is adapted to and seals to be close to Steel pipe end surface, even if also can ensure reliable, good sealing effect in the situation that distortion appears in steel pipe.
Brief description of the drawings
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is existing hydrostatic testing machine sealing principle schematic diagram;
Fig. 2 is plan view of the present utility model;
Fig. 3 is left view of the present utility model;
Fig. 4 is sectional view of the present utility model.
Embodiment
Hydrostatic testing machine self-aligning sealing mechanism as shown in Figures 2 to 4, comprise travelling car 1, connecting base 2 and sealing head 3, connecting base 2 is fixed on the front end of travelling car 1, the front-end face of connecting base 2 is arc shaped surface, the ear end face of sealing head 3 is the sphere being connected on arc shaped surface, sealing head 3 forms spherical hinge structure with connecting base 2, and the front-end face of sealing head 3 is the sealed department of closed conduit end face.By spherical hinge structure, in the situation that having External Force Acting, sealing head 3 can rotate relative to connecting base 2 on arc shaped surface, makes it to adapt to the Steel pipe end surface of inclination, thereby reaches the effect of self-aligning.
In the present embodiment, sealing head 3 is provided with Equilibrator, and Equilibrator provides restoring force in the time that arc shaped surface rotates at sealing head 3, and Equilibrator connects travelling car 1.
Preferably, Equilibrator comprises some balancing pull rods 4, what each balancing pull rod 4 was vertical passes sealing head 3 and penetrates in travelling car 1, balancing pull rod 4 comprises the front portion that is positioned at sealing head 3 and the rear portion that is positioned at travelling car 1, front portion has ball strand 5, in sealing head 3, be fixed with and a ball strand 5 hinged ball twisted seat 6 that coordinate, the periphery movable sheath at rear portion is connected to dish spring 7, the front end of dish spring 7 is connected to ball pad 8, in travelling car 1, be fixedly connected with and the hinged hinge bowl 9 coordinating of ball pad 8, the rear end of dish spring 7 is connected to spacer 10, and spacer 10 is fixedly connected on balancing pull rod 4.Balancing pull rod 4 is along circumferential arrangement on sealing head 3, and totally 8, every two are one group and equidistantly arrange.As shown in Figure 3, in the time that sealing head 3 is in running order and rotate counterclockwise, the balancing pull rod 4 of top moves to left, corresponding dish spring 7 compresses, the balancing pull rod 4 of below moves to right, corresponding dish spring 7 stretches, and works completely and during in idle state when sealing head 3, thereby all dish springs 7 return back to previous condition, to drive sealing head 3 to return back to original position logical.
Preferably, sealing head is connected to dog clutch 11 on 3 edges, and dog clutch 11 is slidably connected to the edge of connecting base 2, and the sphere of sealing head 3 is clamped on the arc shaped surface of connecting base 2.The junction surface of the edge of connecting base 2 and dog clutch 11 is also sphere simultaneously, does not also affect the degrees of freedom of sealing head 3 in ensureing clamping.
Travelling car 1 is provided with venting gas appliance 12 and collection comb 13, and venting gas appliance 12 connects collection comb 13, in collection comb 13, is provided with the outlet pipe 14 that is communicated with venting gas appliance 12, and the front end of outlet pipe 14 passes sealing head 3 and is fixed on sealing head 3.
Preferably, the rear end of travelling car 1 is provided with connecting plate 15, and connecting plate 15 is provided with the plunger cylinder 16 that drives travelling car 1 use.
The above be the utility model preferred embodiment, it does not form the restriction to the utility model protection domain.
Claims (6)
1. a hydrostatic testing machine self-aligning sealing mechanism, it is characterized in that: comprise travelling car (1), connecting base (2) and sealing head (3), described connecting base (2) is fixed on the front end of travelling car (1), the front-end face of described connecting base (2) is arc shaped surface, the ear end face of described sealing head (3) is the sphere being connected on arc shaped surface, and described sealing head (3) forms spherical hinge structure with connecting base (2).
2. hydrostatic testing machine self-aligning sealing mechanism according to claim 1, it is characterized in that: described sealing head (3) is provided with Equilibrator, described Equilibrator provides restoring force in the time that arc shaped surface face rotates at sealing head (3), described Equilibrator connects travelling car (1).
3. hydrostatic testing machine self-aligning sealing mechanism according to claim 2, it is characterized in that: described Equilibrator comprises some balancing pull rods (4), what each balancing pull rod (4) was vertical passes sealing head (3) and penetrates in travelling car (1), described balancing pull rod (4) comprises the front portion that is positioned at sealing head (3) and the rear portion that is positioned at travelling car (1), described front portion has ball strand head (5), in described sealing head (3), be fixed with and ball strand head (5) hinged ball twisted seat (6) coordinating, the periphery movable sheath at described rear portion is connected to dish spring (7), the front end of described dish spring (7) is connected to ball pad (8), in described travelling car (1), be fixedly connected with and the hinged hinge bowl (9) coordinating of ball pad (8), the rear end of described dish spring (7) is connected to spacer (10), described spacer (10) is fixedly connected on balancing pull rod (4).
4. according to the hydrostatic testing machine self-aligning sealing mechanism described in claim 1 or 2 or 3, it is characterized in that: described sealing head (3) edge is connected to dog clutch (11), described dog clutch (11) is slidably connected to the edge of connecting base (2), and the sphere of sealing head (3) is clamped on the arc shaped surface of connecting base (2).
5. according to the hydrostatic testing machine self-aligning sealing mechanism described in claim 1 or 2 or 3, it is characterized in that: described travelling car (1) is provided with venting gas appliance (12) and collection comb (13), described venting gas appliance (12) connects collection comb (13), in described collection comb (13), be provided with the outlet pipe (14) that is communicated with venting gas appliance (12), the front end of described outlet pipe (14) passes sealing head (3) and is fixed on sealing head (3).
6. according to the hydrostatic testing machine self-aligning sealing mechanism described in claim 1 or 2 or 3, it is characterized in that: the rear end of described travelling car (1) is provided with connecting plate (15), described connecting plate (15) is provided with the plunger cylinder (16) that drives travelling car (1) use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420135201.8U CN203797240U (en) | 2014-03-24 | 2014-03-24 | Self-aligning and sealing mechanism of hydrostatic testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420135201.8U CN203797240U (en) | 2014-03-24 | 2014-03-24 | Self-aligning and sealing mechanism of hydrostatic testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797240U true CN203797240U (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420135201.8U Expired - Fee Related CN203797240U (en) | 2014-03-24 | 2014-03-24 | Self-aligning and sealing mechanism of hydrostatic testing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN203797240U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323752A (en) * | 2015-07-08 | 2017-01-11 | 安徽明腾永磁机电设备有限公司 | Hydraulic pressure test seal air bleeder |
-
2014
- 2014-03-24 CN CN201420135201.8U patent/CN203797240U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323752A (en) * | 2015-07-08 | 2017-01-11 | 安徽明腾永磁机电设备有限公司 | Hydraulic pressure test seal air bleeder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20180324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |