CN210603636U

CN210603636U - Wear-resisting head for instrument

Info

Publication number: CN210603636U
Application number: CN201922026934.3U
Authority: CN
Inventors: 曹文高
Original assignee: Anhui Henghui Instrument Co Ltd
Current assignee: Anhui Henghui Instrument Co Ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-05-22
Anticipated expiration: 2029-11-22

Abstract

The utility model relates to the technical field of wear-resisting apparatus, specifically disclose a wear-resisting head for instrument, including the metal sleeve pipe of cover in the outermost end, metal sleeve pipe bottom opening inner edge downward protrusion forms the sleeve pipe outstanding section of step form, sleeve pipe outstanding section lateral wall circumference has seted up three cotter way, wear-resisting head body top end face outer edge upward protrusion forms the body outstanding section of step form, body outstanding section lateral wall circumference has seted up three pinhole, sleeve pipe outstanding section and body outstanding section agree with each other, the fastening pin runs through the pinhole and closely agrees with in the cotter way, instrument component fixed mounting is in the lumen; through setting up metal sleeve and wear-resisting first body mutually independent and carrying out fixed connection, make wear-resisting first body can replace at any time, effectively reduced the operating cost, and then guaranteed the security and the stability of instrument component's self, and carry out the mode of fixing through the fastening pin, the operating personnel of being convenient for carries out the replacement and maintains the operation.

Description

Wear-resisting head for instrument

Technical Field

The utility model relates to a wear-resisting apparatus technical field specifically is a wear-resisting head is used to instrument.

Background

The wear-resistant head is an indispensable main material of a wear-resistant thermocouple, can have good wear resistance in a hot state, contains higher elements such as C, Cr, Ni and the like, further has good impact toughness, good thermal fatigue property, thermal strength and oxidation resistance growth property, and particularly has good performance in a wear-resistant industrial and mining environment with the working temperature within 1300 ℃. The hardness of the wear-resistant head is extremely high and generally reaches HRC 60-65. The wear-resistant thermocouple is specially designed and manufactured for measurement occasions of high, medium and low temperature wear-resistant environments, and is suitable for high-temperature severe environments such as a circulating fluidized bed, a fluidized bed furnace, a cement rotary kiln tail smoke chamber and the like.

When facing the high-speed impact of coal powder, slurry, an outlet medium of an ethylene cracking furnace and other materials in an operating environment, the existing wear-resistant head is easy to damage and wear through long-term high-speed scouring, and the service life is generally below one year. And wear-resisting head and instrument generally adopt integrated design, lead to needing to change the instrument together, and the operating cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a wear-resisting head is used to instrument possesses wear-resisting head and can replaces, and replacement low cost maintains conveniently, and durable and stable advantage has solved the easy damage and the wearing and tearing of current wear-resisting head, and wear-resisting head and instrument take the integrated design, lead to the problem that replacement cost is high.

The utility model discloses a wear-resisting head for instrument, including the metal sleeve pipe of cover in the outermost end, the metal sleeve pipe is the hollow cylinder pipe, the metal sleeve pipe bottom opening and set up the inner chamber to be the lumen, the metal sleeve pipe bottom opening inner edge is downward salient and is formed the sleeve pipe outstanding section of step form, the sleeve pipe outstanding section lateral wall has seted up three keyway in the circumference; the wear-resisting head comprises a wear-resisting head body, wherein the wear-resisting head body is a hollow cylindrical pipe, the top of the wear-resisting head body is provided with an opening, the outer edge of the top end face of the wear-resisting head body protrudes upwards to form a step-shaped body protruding section, and three pin holes are formed in the circumferential direction of the side wall of the body protruding section; the fastening pin, the sleeve pipe protruding section and the body protruding section are mutually matched, the pin groove and the pin hole are aligned in pairs, and the fastening pin penetrates through the pin hole and is tightly matched in the pin groove; and the instrument element is fixedly arranged in the tube cavity. This scheme carries out fixed connection through setting up metal sleeve and wear-resisting first body mutually independent, makes wear-resisting first body can replace at any time, has effectively reduced the operating cost, and then has guaranteed the security and the stability of instrument component's self, and carries out the mode of fixing through the fastening pin, and the operating personnel of being convenient for carries out the replacement maintenance operation.

The utility model discloses a wear-resisting head is used to instrument, wherein the outstanding section of sleeve pipe and the outstanding section inner chamber section of body all are regular triangle. This scheme all is regular triangle through setting up sleeve pipe protruding section and body protruding section inner chamber section, makes the agreeing with of the two inseparabler, and can avoid metal sleeve and wear-resisting first body to take place relative rotation, has improved firm in connection effect.

The utility model discloses a wear-resisting head is used to instrument, wherein wear-resisting head body inner chamber closely registrates the protection tube, protection tube cavity and open-top, and the protection tube top upwards extends and inserts the lumen. This scheme is through setting up the protection tube and further protecting instrument component, has guaranteed the wear-resisting first body of direct contact that can not of instrument component, still keeps the security and the stability of self.

The utility model discloses a wear-resisting head is used to instrument, wherein instrument component downwardly extending inserts in the protective tube.

The utility model discloses a wear-resisting head for instrument, wherein the metal sleeve bottom closely registrates the spiral cover, and metal sleeve agrees with the spiral cover screw thread, and the welding of spiral cover bottom has the ring cover, and the ring cover internal diameter is the same with wear-resisting head body external diameter, and the ring cover covers the pinhole. This scheme covers the pinhole through the ring cover that sets up the spiral cover, even the fastening pin takes place to break away from the condition in cotter way, the fastening pin also can not drop from the pinhole, and then has avoided the unexpected risk that breaks away from metal sleeve of wear-resisting first body.

The utility model discloses a wear-resisting head is used to instrument, wherein wear-resisting head body still can be for the cavity triangular prism. This scheme is through setting up when wear-resisting first body is the triangular prism, and when it is towards the high-speed impact of medium, can reduce and erode the resistance to improve the life of device.

The utility model discloses a wear-resisting head is used to instrument, wherein it has the wear-resisting lining of high temperature to fill between wear-resisting head body inner wall and the protective tube outer wall. This scheme is through setting up to pack the wear-resisting lining of high temperature between wear-resisting first body and the protection tube, and the effective combination of protection tube and wear-resisting lining of high temperature for even the instrument component runs into the very strong condition of medium velocity of flow height, temperature height, scouring ability in the measurement, still can keep the security and the stability of self.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. this scheme carries out fixed connection through setting up metal sleeve and wear-resisting first body mutually independent, makes wear-resisting first body can replace at any time, has effectively reduced the operating cost, and then has guaranteed the security and the stability of instrument component's self, and carries out the mode of fixing through the fastening pin, and the operating personnel of being convenient for carries out the replacement maintenance operation.

2. This scheme is through setting up the protection tube and further protecting instrument component, has guaranteed the wear-resisting first body of direct contact that can not of instrument component, still keeps the security and the stability of self.

3. This scheme covers the pinhole through the ring cover that sets up the spiral cover, even the fastening pin takes place to break away from the condition in cotter way, the fastening pin also can not drop from the pinhole, and then has avoided the unexpected risk that breaks away from metal sleeve of wear-resisting first body.

4. This scheme is through setting up when wear-resisting first body is the triangular prism, and when it is towards the high-speed impact of medium, can reduce and erode the resistance to improve the life of device.

5. This scheme is through setting up to pack the wear-resisting lining of high temperature between wear-resisting first body and the protection tube, and the effective combination of protection tube and wear-resisting lining of high temperature for even the instrument component runs into the very strong condition of medium velocity of flow height, temperature height, scouring ability in the measurement, still can keep the security and the stability of self.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic sectional view of a front view of a wear-resistant head of the present invention;

fig. 2 is a schematic view of a cross-sectional structure of a top view of the wear-resistant head of the present invention.

In the figure: 1. a meter element; 2. a metal sleeve; 21. a lumen; 22. a sleeve protruding section; 23. a pin slot; 3. protecting the tube; 4. a wear-resistant head body; 41. a body projecting section; 42. a pin hole; 5. screwing a cover; 51. a ring cover; 6. and fastening the pin.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 and 2, the wear-resistant head for an instrument of the present invention includes a metal sleeve 2 sleeved at the outermost end, the metal sleeve 2 is a hollow cylindrical tube, the bottom of the metal sleeve 2 is open and provided with an inner cavity as a tube cavity 21, the inner edge of the bottom opening of the metal sleeve 2 protrudes downwards to form a stepped sleeve protruding section 22, and three pin grooves 23 are circumferentially provided on the side wall of the sleeve protruding section 22; the wear-resisting head comprises a wear-resisting head body 4, wherein the wear-resisting head body 4 is a hollow cylindrical pipe, the top of the wear-resisting head body 4 is provided with an opening, the outer edge of the top end face of the wear-resisting head body 4 protrudes upwards to form a step-shaped body protruding section 41, and three pin holes 42 are formed in the circumferential direction of the side wall of the body protruding section 41; the fastening pin 6, the sleeve protruding section 22 and the body protruding section 41 are mutually matched, the pin groove 23 and the pin hole 42 are aligned in pairs, and the fastening pin 6 penetrates through the pin hole 42 and is tightly matched in the pin groove 23; the instrument element 1, instrument element 1 is fixedly installed in lumen 21. This scheme carries out fixed connection through setting up metal sleeve 2 and wear-resisting first body 4 mutual independence, makes wear-resisting first body 4 can replace at any time, has effectively reduced the operating cost, and then has guaranteed the security and the stability of instrument component 1's self, and carries out the mode of fixing through fastening pin 6, and the operating personnel of being convenient for carry out the replacement maintenance operation.

Furthermore, the cross section of the sleeve protruding section 22 and the cross section of the inner cavity of the body protruding section 41 are both regular triangles. This scheme is through setting up that the protruding section 22 section of sleeve pipe and the protruding 41 inner chamber sections of body section of protruding all are regular triangle, makes agreeing with of the two inseparabler, and can avoid metal sleeve 2 and wear-resisting first body 4 to take place relative rotation, has improved firm in connection effect.

Further, the inner cavity of the wear-resistant head body 4 is tightly sleeved with the protection tube 3, the protection tube 3 is hollow and is opened at the top, and the top end of the protection tube 3 extends upwards and is inserted into the tube cavity 21. This scheme carries out further protection to instrument component 1 through setting up protection tube 3, has guaranteed instrument component 1 can not the wear-resisting first body 4 of direct contact, still keeps the security and the stability of self.

Further, the meter element 1 extends downward and is inserted into the protective tube 3.

Furthermore, the bottom end of the metal sleeve 2 is tightly sleeved with a screw cap 5, the metal sleeve 2 is in threaded fit with the screw cap 5, a ring cover 51 is welded at the bottom of the screw cap 5, the inner diameter of the ring cover 51 is the same as the outer diameter of the wear-resistant head body 4, and the pin hole 42 is covered by the ring cover 51. According to the scheme, the ring cover 51 of the screw cover 5 covers the pin hole 42, even if the fastening pin 6 breaks away from the pin groove 23, the fastening pin 6 cannot fall off from the pin hole 42, and the risk that the wear-resistant head body 4 breaks away from the metal sleeve 2 accidentally is avoided.

Further, the wear-resistant head body 4 may also be a hollow triangular prism. This scheme is through setting up wear-resisting first body 4 when the triangular prism, when its high-speed impact that faces the medium, can reduce and erode the resistance to improve the life of device.

Further, a high-temperature wear-resistant lining is filled between the inner wall of the wear-resistant head body 4 and the outer wall of the protection tube 3. This scheme is through setting up to pack the wear-resisting lining of high temperature between wear-resisting first body 4 and the protection tube 3, and protection tube 3 effectively combines with the wear-resisting lining of high temperature for even instrument component 1 runs into the condition that the medium velocity of flow is high, the temperature is high, the ability of erodeing is very strong in the measurement, still can keep the security and the stability of self.

When using the utility model discloses the time:

the wear-resistant head of the scheme has the same use method as the existing wear-resistant head. When the wear-resistant head body 4 is seriously worn or directly damaged due to long-term use, the wear-resistant head body 4 can be replaced in order to avoid damaging the internal instrument element 1 by continuous use.

Referring to fig. 1 and 2, the cap 5 is rotated in the opposite direction to unscrew it from the bottom end of the metal casing 2, leaving the ring cover 51 away from the pin hole 42. The fastening pin 6 is then pried out of the pin slot 23 and the pin hole 42 in order to remove the damaged wear-resistant head body 4 from the metal sleeve 2. And sleeving the replaceable wear-resistant head body 4 at the tail end of the metal sleeve 2 to ensure that the sleeve protruding section 22 and the body protruding section 41 are matched with each other, and finally reversely operating the disassembly process to finish the replacement of the wear-resistant head body 4.

The cross section of the sleeve protruding section 22 and the cross section of the inner cavity of the body protruding section 41 are both set to be regular triangles, so that the fit between the sleeve protruding section 22 and the body protruding section is tighter, relative rotation between the metal sleeve 2 and the wear-resistant head body 4 can be avoided, and the effect of firm connection is improved.

The wear-resistant head body 4 is provided with the protection tube 3, so that the instrument element 1 can be further protected, the instrument element 1 is guaranteed not to directly contact with the wear-resistant head body 4, and the safety and the stability of the instrument element 1 are still kept.

When the wear-resistant head body 4 is a triangular prism, the high-speed impact of the wear-resistant head body facing the medium can reduce the scouring resistance, so that the service life of the device is prolonged.

High-temperature wear-resistant lining can be filled between the inner wall of the wear-resistant head body 4 and the outer wall of the protection tube 3, and the protection tube 3 is effectively combined with the high-temperature wear-resistant lining, so that the instrument element 1 can still keep the safety and the stability of the instrument element even if the instrument element touches the conditions of high medium flow rate, high temperature and very strong scouring capacity in measurement. It should be noted that TA-218 and the like may be used for the high temperature wear resistant lining.

The utility model discloses possess wear-resisting head and can replace, replacement low cost maintains conveniently, durable and stable advantage, has solved the easy damage of current wear-resisting head and wearing and tearing, and wear-resisting head and instrument take integrated design, leads to the problem that replacement cost is high.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a wear-resisting head for instrument which characterized in that: the pipe joint comprises a metal sleeve (2) sleeved at the outermost end, wherein the metal sleeve (2) is a hollow cylindrical pipe, the bottom of the metal sleeve (2) is provided with an opening, an inner cavity is a pipe cavity (21), the inner edge of the opening at the bottom of the metal sleeve (2) protrudes downwards to form a stepped sleeve protruding section (22), and three pin grooves (23) are formed in the circumferential direction of the side wall of the sleeve protruding section (22);

the wear-resisting head comprises a wear-resisting head body (4), wherein the wear-resisting head body (4) is a hollow cylindrical tube, the top of the wear-resisting head body (4) is opened, the outer edge of the top end face of the wear-resisting head body (4) protrudes upwards to form a step-shaped body protruding section (41), and three pin holes (42) are formed in the circumferential direction of the side wall of the body protruding section (41);

the sleeve protruding section (22) and the body protruding section (41) are mutually matched, the pin grooves (23) and the pin holes (42) are aligned in pairs, and the fastening pins (6) penetrate through the pin holes (42) and are tightly matched in the pin grooves (23);

the instrument element (1), instrument element (1) is fixed and is installed in lumen (21).

2. A wear head for a meter according to claim 1, wherein: the cross section of the sleeve protruding section (22) and the cross section of the inner cavity of the body protruding section (41) are both in a regular triangle shape.

3. A wear head for a meter according to claim 1, wherein: wear-resisting first body (4) inner chamber is closely registrated with protection tube (3), protection tube (3) cavity and open-top, upwards extend and insert in lumen (21) protection tube (3) top.

4. A wear head for a meter according to claim 3, wherein: the meter element (1) extends downwards and is inserted into a protective tube (3).

5. A wear head for a meter according to claim 1, wherein: the bottom end of the metal sleeve (2) is tightly sleeved with a rotary cover (5), the metal sleeve (2) is in threaded fit with the rotary cover (5), a ring cover (51) is welded at the bottom of the rotary cover (5), the inner diameter of the ring cover (51) is the same as the outer diameter of the wear-resistant head body (4), and the ring cover (51) covers the pin hole (42).

6. A wear head for a meter according to claim 1, wherein: the wear-resistant head body (4) can also be a hollow triangular prism.