阅读说明：本技术 一种试验舱齿啮式快开人孔 (Test chamber tooth-engaging type quick-opening manhole ) 是由 廖利华 郭斌 于 2020-06-12 设计创作，主要内容包括：一种试验舱齿啮式快开人孔,属于试车台试验舱装置技术领域,包括筒体、筒体法兰、耳板和转轴,所述筒体、筒体法兰与耳板焊接成型,所述转轴插入耳板中,两端由螺母限位固定,还包括盖法兰与盖体,所述盖法兰与盖体焊接,所述盖体上设置有固定轴,所述固定轴上安装有轴承式可转动机构,所述轴承式可转动机构和转轴分别与转臂固接,所述筒体法兰与盖法兰的圆周上均加工有均匀分布的齿,旋转盖法兰使之与筒体法兰的齿啮合或错开以实现人孔的关闭与打开,使打开时转臂可绕转轴所在轴旋转,关闭时盖法兰和盖体可绕固定轴轴向灵活转动。本发明结构设计简单合理,成本低,能实现人孔快速开启和关闭,降低开闭人孔的工作强度且密封效果好。(The utility model provides a test chamber tooth-lock formula quick-open manhole, belongs to test bench test chamber device technical field, including barrel, barrel flange, otic placode and pivot, barrel flange and otic placode welded fastening form, the pivot is inserted in the otic placode, and both ends are spacing fixed by the nut, still include flange and lid, flange and lid welding, be provided with the fixed axle on the lid, install bearing formula slewing mechanism on the fixed axle, bearing formula slewing mechanism and pivot respectively with rocking arm rigid coupling, all process evenly distributed's tooth on barrel flange and the circumference of flange, the rotatory flange of lid makes it mesh or staggers with the tooth of barrel flange in order to realize closing and opening of manhole, and the rocking arm can revolute the axle rotation of axis place when making to open, and flange of lid and lid can rotate around fixed axle axial flexibility when closing. The manhole cover has the advantages of simple and reasonable structural design, low cost, capability of realizing quick opening and closing of the manhole, reduction of the working strength of opening and closing the manhole and good sealing effect.)

1. The utility model provides a manhole is opened soon to test chamber tooth formula of nibbling, includes barrel, barrel flange, otic placode and pivot, barrel flange and otic placode welded forming, the pivot is inserted in the otic placode, and both ends are spacing fixed by the nut, its characterized in that still includes flange and lid, flange and lid welding, be provided with the fixed axle on the lid, install bearing formula slewing mechanism on the fixed axle, bearing formula slewing mechanism and pivot respectively with the rocking arm rigid coupling, all process evenly distributed's tooth on the circumference of barrel flange and flange, rotatory flange makes it with the tooth meshing of barrel flange or stagger in order to realize closing and opening of manhole, the rocking arm can revolute the rotation of axis place rotation when making to open, flange and lid can rotate around the axial is nimble when closing.

2. The engaged quick-opening manhole of the test chamber of claim 1, wherein the bearing-type rotatable mechanism comprises a bearing, a bearing seat and a bearing end cover, the bearing seat is fixedly connected with the rotating arm, the bearing is arranged in a groove of the bearing seat and sleeved on the fixed shaft, and the bearing end cover is arranged above the bearing seat to limit and press the bearing.

3. The engaged-gear quick-opening manhole of the test chamber as claimed in claim 2, wherein threads are formed at the upper end of the fixed shaft, and the bearing end cover is locked to the fixed shaft by using a lock washer and a lock nut.

4. The engaged quick-opening manhole of the test chamber of claim 2, wherein the bearing seat and the bearing end cover are fixedly connected by a fastening combination of four screws, a spring washer and a flat washer.

5. The engaged quick-opening manhole of the test chamber of claim 1, wherein the cylinder flange is designed with a groove, and a sealing ring is arranged in the groove.

6. The engaged quick-opening manhole of the test chamber of claim 5, wherein the sealing ring is connected with the inflation channel and communicated with the inflation connector, and the sealing ring is inflated or exhausted through the inflation connector so as to realize sealing or unsealing between the cylinder body flange and the cover flange.

7. The test chamber nibbling quick-opening manhole according to claim 1 or 5, wherein the cylinder flange is provided with an indexing pin, and the pin shaft of the indexing pin can be popped out in a popping mode.

8. The engaged quick-opening manhole of the test chamber as claimed in claim 1, wherein the cover flange is provided with a positioning hole, so that the cover body can be quickly positioned when the manhole is closed.

9. The test chamber tooth-locked quick-opening manhole as claimed in claim 8, wherein when the manhole is closed, the cover flange is rotated to insert the pin shaft into the cover flange positioning hole, and the cover flange is judged to be engaged with the teeth of the cylinder flange.

10. The engaged-gear quick-opening manhole of the test chamber as claimed in claim 1, wherein the connecting pipe of the cylinder is directly welded to the opening of the test chamber, so that the manhole is convenient to put into use and strong in universality.

Technical Field

The invention belongs to the technical field of test chamber devices of test beds, and particularly relates to a tooth-locked quick-opening manhole of a test chamber.

Background

An air inlet flow guide basin, an air inlet mesh enclosure and a rectifying mesh are installed in a front cabin of a test cabin of a certain test bed, different air inlet flow guide basins and air inlet mesh enclosures need to be installed during tests of different test pieces, and temperature and pressure probes are installed on the air inlet mesh enclosure and used for measuring the air inlet temperature and pressure of an engine. Meanwhile, in order to prevent foreign matters or debris from being sucked into the air inlet channel by the engine to damage the engine blades, the foreign matters or the debris need to enter the front cabin of the test cabin before the test each time to check and ensure safety, and therefore the front cabin of the test cabin needs to be provided with a channel for personnel to enter and exit. The general reference pressure vessel standard design of proof test chamber, the type and the technical condition to the steel manhole among the chemical industry standard at present have carried out relevant regulation, the manhole form mainly includes the ordinary pressure manhole, gyration apron formula flange manhole, perpendicular hanging cover formula flange manhole etc. all have the welding on the barrel to take over and the flange above the manhole major structure form, the welding has flange cover and pivot on the lid, connect the fastening through bolt or handle between flange cover and the flange, this structure single open time is more of a specified duration, waste time and energy. In addition, the main purpose of designing a manhole in the pressure vessel is to provide access for personnel during maintenance, and the maintenance frequency of equipment is not high, so that a quick-opening mode is not considered.

The tooth-meshed quick-opening structure is mostly used in large pressure containers, for example, in the current chemical industry, large pressure containers, such as autoclaves and vulcanizing tanks (the diameter is generally more than DN 2000), the tooth-meshed quick-opening door is used as a material inlet and outlet gate, the tooth-meshed structure is usually driven by a motor or a hydraulic mode, and has the advantages of quick opening and closing, wide application pressure range, strong pressure bearing capacity and the like.

Disclosure of Invention

Aiming at the technical problems, the invention discloses a tooth-locked quick-opening manhole of a test chamber, which is designed and installed with a bearing in a rotating structure by adopting a manual opening mode in consideration of the small size (generally DN500 or DN600) of the manhole of the test chamber, so that the single-time opening time is short, the working strength of personnel is reduced, and the opening flexibility is enhanced.

The invention specifically adopts the following technical scheme:

the utility model provides a manhole is opened soon to test chamber tooth formula of nibbling, includes barrel, barrel flange, otic placode and pivot, barrel flange and otic placode welded forming, during the pivot inserted the otic placode, both ends were by the spacing fixed of nut, still include flange and lid, flange and lid welding, be provided with the fixed axle on the lid, install bearing formula slewing mechanism on the fixed axle, bearing formula slewing mechanism and pivot respectively with the rocking arm rigid coupling, all process evenly distributed's tooth on the circumference of barrel flange and flange, rotatory flange makes it with the tooth meshing of barrel flange or stagger in order to realize closing and opening of manhole, and the rocking arm can revolute the rotation of axis place rotation when making to open, and flange and lid can rotate around the fixed axle axial is nimble when closing.

Furthermore, the bearing type rotatable mechanism comprises a bearing, a bearing seat and a bearing end cover, the bearing seat is fixedly connected with the rotating arm, the bearing is arranged in a groove of the bearing seat and is sleeved on the fixed shaft, and the bearing end cover is arranged above the bearing seat to limit and compress the bearing.

Furthermore, the upper end of the fixed shaft is provided with threads, and the bearing end cover is locked on the fixed shaft by using a locking washer and a locking nut.

Furthermore, the bearing seat and the bearing end cover are fixedly connected by the fastening combination of four screws, spring washers and flat washers.

Further, the cylinder flange is designed with a groove, and a sealing ring is arranged in the groove.

Furthermore, the sealing ring is connected with the inflation channel to the inflation connector, and the sealing ring is inflated or exhausted through the inflation connector, so that sealing or unsealing between the cylinder body flange and the cover flange is realized.

Furthermore, the cylinder body flange is provided with an indexing pin, and the pin shaft of the indexing pin can be popped out in a popping mode.

Furthermore, be provided with the locating hole on the flange, the lid can fix a position fast when making the manhole close.

Furthermore, when the manhole is closed, the cover flange is rotated, the pin shaft is inserted into the cover flange positioning hole, and the cover flange is judged to be meshed with the teeth of the cylinder flange.

Furthermore, the connecting pipe of the cylinder body is directly welded with the hole of the experiment chamber, so that the device is convenient to put into use and has strong universality.

The invention has the beneficial effects that:

(1) the manhole adopts a tooth-meshed structure, has the advantages of quick opening and closing, wide application pressure range, strong bearing capacity and the like, is convenient to open without being fastened by bolts, and can be widely applied to occasions needing frequent opening and closing;

(2) the cylinder flange and the cover flange are sealed through the inflatable sealing ring, and the deformation of about 3mm can be compensated, so that the processing precision of the contact surface of the cylinder flange and the cover flange is reduced, and the processing cost is further reduced;

(3) a deep groove ball bearing is arranged between the cover body and the rotary arm, so that the cover body is ensured to rotate flexibly, and the working strength is reduced;

(4) the spring type indexing pin is installed on the barrel flange, the positioning hole is machined in the cover flange, when the cover flange is closed, the indexing pin is rotated to the ejection mode, the cover flange is rotated, when the positioning hole in the cover flange is rotated to the indexing pin, the indexing pin shaft automatically ejects, and the pin shaft is inserted into the positioning hole, so that rapid positioning and installation are achieved.

Drawings

FIG. 1 is a schematic structural view of a test chamber in a closed state of a tooth-meshed quick-opening manhole;

FIG. 2 is a schematic structural view of a test chamber in a tooth-meshed structure in an open state of a quick-opening manhole;

FIG. 3 is a sectional view of FIG. 1 taken along the line A-A;

FIG. 4 is a cross-sectional view taken along the line B-B in FIG. 1;

FIG. 5 is a cross-sectional structural view taken along the direction C-C of FIG. 1;

FIG. 6 is an enlarged view of a portion of FIG. 3I;

fig. 7 is a partial enlarged view of fig. 3 ii.

1. A barrel; 2. a cylinder flange; 3. a cover flange; 4. a cover body; 5. a rotating arm; 6. an index pin; 7. an ear plate; 8. a rotating shaft; 9. a bearing seat; 10. a fixed shaft; 11. a bearing end cap; 12. a seal ring; 13. an inflation joint; 14. a handle; 15. a nut; 16. a deep groove ball bearing; 17. locking the nut; 18. a lock washer; 19. a screw; 20. a spring washer; 21. a flat washer.

Detailed Description

The invention is further illustrated by the following specific examples. The starting materials and methods employed in the examples of the present invention are those conventionally available in the market and conventionally used in the art, unless otherwise specified.