Explosion-proof type rotary transformer encoder shell structure for mine

Abstract

The utility model discloses a mining flame-proof rotary transformer encoder housing structure. The mining flame-proof rotary transformer encoder housing structure comprises a cylinder, a front end cover, a rear end cover, a rotary encoder and a connecting shaft. The rotary encoder is arranged in the cylinder body, the hollow part of the cylinder body is provided with a partition plate, the center of the partition plate is provided with a through hole for the rotary encoder to penetrate through, the partition plate is provided with a rotary encoder fixing screw hole, and a rotary encoder fixing bolt penetrates through the rotary encoder fixing screw hole to fix the rotary encoder and the cylinder body; the front end cover and the rear end cover are fixedly connected with the two ends of the cylinder through bolts respectively, and a front end cover hollow part with an opening in the symmetry axis direction of the cylinder is formed in the center of the front end cover. One end of the connecting shaft is fixedly connected with the connecting end of the rotary encoder, and the other end of the connecting shaft penetrates out of the cylinder from the hollow part of the front end cover. The mining flame-proof rotary transformer encoder shell structure is reasonable in structural design, the shell endows the rotary encoder with the flame-proof requirement of GB3836, and the application prospect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of mining equipment, and relates to a mining explosion-proof rotary transformer encoder housing structure. Background Art

[0002] The flameproof rotary transformer for mining is mainly used in coal mines containing explosive mixtures of methane and coal dust. The flameproof rotary transformer for mining is mainly composed of a cylinder, a front cover, a rear cover, a connecting shaft, a copper sleeve, a rotary encoder, an A0 type explosion-proof cable lead-in device, a flat spring washer for assembly screws, and a hexagon socket head screw. At present, the flameproof rotary transformer for mining has the following problems: the existing rotary encoder structure is non-explosion-proof and non-intrinsically safe, and cannot be directly applied to coal mines containing explosive mixtures of methane and coal dust.

[0003] Therefore, it is of great practical significance to develop a mining flameproof rotary transformer encoder housing structure with good explosion-proof performance. Utility Model Content

[0004] Since the prior art has the above-mentioned defects, the utility model provides a mining flameproof rotary transformer encoder housing structure with good explosion-proof performance, which overcomes the defect that the prior rotary transformer encoder is a non-explosion-proof structure.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A mining flameproof rotary transformer encoder housing structure, comprising a barrel, a front end cover, a rear end cover, a rotary encoder and a connecting shaft;

[0007] The rotary encoder is arranged in the cylinder, and a partition with a through hole in the center for the rotary encoder to pass through is provided in the hollow part of the cylinder, and a rotary encoder fixing screw hole is provided on the partition, and the rotary encoder fixing bolt passes through the rotary encoder fixing screw hole to fix the rotary encoder to the cylinder;

[0008] The front end cover and the rear end cover are respectively fixedly connected to the two ends of the cylinder body by bolts, and a front end cover hollow part opening along the symmetry axis direction of the cylinder body is opened at the center of the front end cover;

[0009] One end of the connecting shaft is fixedly connected to the connecting end of the rotary encoder, and the other end passes through the cylinder from the hollow portion of the front end cover.

[0010] The utility model has a shell structure of a flameproof rotary transformer encoder for mining, and has a reasonable structural design, and can conveniently fix the rotary encoder. The shell formed by the cooperation of the front end cover and the rear end cover at the front and rear ends of the cylinder can enable the rotary encoder to meet the flameproof requirements of GB3836, and can be used underground in coal mines containing explosive mixtures of methane and coal dust, and has good application prospects.

[0011] As the preferred technical solution:

[0012] In the above-mentioned flameproof rotary transformer encoder housing structure for mining, a copper sleeve is sleeved on the outer wall of the connecting shaft and the copper sleeve is located between the connecting shaft and the front end cover;

[0013] There are a plurality of rotary encoder fixing screw holes, and the plurality of rotary encoder fixing screw holes are evenly distributed around the circumference of the symmetry axis of the cylinder.

[0014] In the above-mentioned mining flameproof rotary transformer encoder housing structure, an A0 straight-through joint is fixed in the middle of the cylinder and the A0 straight-through joint is connected to the hollow part of the cylinder, and the A0 straight-through joint is connected to the A0 introduction device away from the cylinder end. The straight-through joint and the introduction device can meet the introduction requirements of A0 type explosion-proof cables.

[0015] In the above-mentioned mining flameproof rotary transformer encoder housing structure, the hollow part of the cylinder comprises a cylinder front end cover embedded part, a cylinder rotary encoder mounting part and a cylinder rear end cover embedded part which are connected in sequence;

[0016] The inner embedded part of the front end cover of the cylinder body matches the front end cover, the installation part of the rotary encoder of the cylinder body matches the rotary encoder, and the inner embedded part of the rear end cover of the cylinder body matches the rear end cover;

[0017] The partition is located between the embedded portion of the front end cover of the cylinder and the installation portion of the rotary encoder of the cylinder;

[0018] The connecting end of the rotary encoder is inserted from the rotary encoder mounting portion of the barrel into the embedded portion of the front end cover of the barrel and is fixedly connected with the connecting shaft.

[0019] In the above-mentioned explosion-proof rotary transformer encoder housing structure for mining, a straight-through joint connecting hole is opened on the cylinder wall of the cylinder corresponding to the cylinder rotary encoder mounting part, and the straight-through joint connecting hole is fixedly connected to the A0 straight-through joint.

[0020] In the flameproof rotary transformer encoder housing structure for mining as described above, the cylinder walls at the front and rear ends of the cylinder are respectively provided with a plurality of cylinder front end cover fixing screw holes and cylinder rear end cover fixing screw holes evenly distributed around the circumference of the cylinder.

[0021] In the above-mentioned flameproof rotary transformer encoder housing structure for mining, the front end cover is provided with a front end cover fixing through hole matching the front end cover fixing screw hole of the cylinder body;

[0022] The rear end cover is provided with a rear end cover fixing through hole which matches the rear end cover fixing screw hole of the cylinder body.

[0023] In the above-mentioned flameproof rotary transformer encoder housing structure for mining, a nameplate is fixed to the rear end cover away from the cylinder side;

[0024] The rotary encoder fixing bolts and the bolts fixing the cylinder body to the front cover and the rear cover are all hexagon socket bolts.

[0025] As described above, in a mining explosion-proof rotary transformer encoder housing structure, one end of the connecting shaft is provided with a connecting shaft front connecting hole coaxial with the connecting shaft, the other end is provided with a rotary encoder connecting hole coaxial with the connecting shaft, and the connecting shaft is also provided with a rotary encoder connecting fixing hole connected to the rotary encoder connecting hole.

[0026] A mining flameproof rotary transformer encoder housing structure as described above, wherein the rotary encoder connection fixing hole is a screw hole;

[0027] The rotary encoder connection fixing hole is perpendicular to the rotary encoder connection hole. The bolt is fixed to the rotary encoder connection fixing hole, and the bolt can be pressed against the rotary encoder connection end located in the rotary encoder connection hole.

[0028] The above technical solution is only a feasible technical solution of the present utility model, and the protection scope of the present utility model is not limited thereto. Those skilled in the art can reasonably adjust the specific design according to actual needs.

[0029] The above utility model has the following advantages or beneficial effects:

[0030] The utility model has a shell structure of a flameproof rotary transformer encoder for mining, and has a reasonable structural design, and can conveniently fix the rotary encoder. The shell formed by the cooperation of the front end cover and the rear end cover at the front and rear ends of the cylinder can enable the rotary encoder to meet the flameproof requirements of GB3836, and can be used underground in coal mines containing explosive mixtures of methane and coal dust, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and the emphasis is on illustrating the subject matter of the present invention.

[0032] Figure 1 This is a schematic diagram of the structure of the housing structure of the explosion-proof rotary transformer encoder for mining use of the utility model;

[0033] Figure 2 and 3 They are Figure 1 Right and left views of;

[0034] Figure 4is a cross-sectional schematic diagram of the cylinder;

[0035] Figures 5 to 7 They are the bottom view, right view and left view of the cylinder respectively;

[0036] Figure 8 and 9 They are a cross-sectional view and a top view of the front end cover respectively;

[0037] Fig.10 is a cross-sectional view of the rear end cover;

[0038] Fig.11 is a cross-sectional view of the copper sleeve;

[0039] Fig.12 It is a structural schematic diagram of the connecting shaft;

[0040] Fig.13 is a cross-sectional view of the connecting shaft;

[0041] Among them, 1 is the cylinder, 2 is the front end cover, 3 is the rear end cover, 4 is the connecting shaft, 5 is the copper sleeve, 6 is the rotary encoder, 7 is the rotary encoder fixing bolt, 8 is the A0 straight-through joint, 9 is the A0 introduction device, 10 is the front end cover fixing bolt, 11 is the rear end cover fixing bolt, 12 is the nameplate, 13 is the cylinder front end cover fixing screw hole, 14 is the cylinder front end cover embedded part, 15 is the rotary encoder fixing screw hole, 16 is the cylinder rotary encoder mounting part, 17 is the straight-through joint connecting hole, 18 is the cylinder rear end cover embedded part, 19 is the cylinder rear end cover fixing screw hole, 20 is the front end cover fixing through hole, 21 is the front end cover hollow part, 22 is the rotary encoder connecting hole, 23 is the rotary encoder connecting and fixing hole, 24 is the connecting shaft front connecting hole, and 25 is the rear end cover fixing through hole. DETAILED DESCRIPTION

[0042] The structure of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0043] Example 1

[0044] A mining flameproof rotary transformer encoder housing structure, such as Figures 1 to 13 As shown, it includes a cylinder 1, a front end cover 2, a rear end cover 3, a rotary encoder 6 and a connecting shaft 4;

[0045] The rotary encoder 6 is arranged in the cylinder 1. The hollow part of the cylinder 1 is provided with a partition with a through hole in the center for the rotary encoder 6 to pass through. A plurality of rotary encoder fixing screw holes 15 are opened on the partition, and the plurality of rotary encoder fixing screw holes 15 are evenly distributed around the circumference of the symmetry axis of the cylinder 1. The rotary encoder fixing bolt 7 passes through the rotary encoder fixing screw hole 15 to fix the rotary encoder 6 to the cylinder 1. The hollow part of the cylinder 1 includes a cylinder front end cover embedded part 14, a cylinder rotary encoder mounting part 16 and a cylinder rear end cover embedded part 18 which are connected in sequence. The cylinder front end cover embedded part 14 matches the front end cover 1, the cylinder rotary encoder mounting part 16 matches the rotary encoder 6, and the cylinder rear end cover embedded part 18 matches the rear end cover 3. The partition is located at the cylinder Between the embedded portion 14 of the front end cover of the body and the rotary encoder mounting portion 15 of the barrel, the connecting end of the rotary encoder 6 passes through the embedded portion 14 of the front end cover of the barrel from the rotary encoder mounting portion 15 of the barrel and is fixedly connected to the connecting shaft 4. One end of the connecting shaft 4 is provided with a connecting shaft front connecting hole 24 coaxial with the connecting shaft 4 (this end passes through the barrel 1 from the hollow portion 21 of the front end cover), and the other end is provided with a rotary encoder connecting hole 22 coaxial with the connecting shaft 4 and fixedly connected to the connecting end of the rotary encoder 6. The connecting shaft 4 is also provided with a rotary encoder connecting fixing hole 23 (screw hole) that is connected to the rotary encoder connecting hole 22 and is perpendicular to the rotary encoder connecting hole 22. A copper sleeve 5 is sleeved on the outer wall of the connecting shaft 4 and the copper sleeve 5 is located between the connecting shaft 4 and the front end cover 2;

[0046] A straight-through joint connection hole 17 connected to the cylinder rotary encoder installation part 16 is opened on the cylinder wall of the cylinder 1 corresponding to the cylinder rotary encoder installation part 16, and the straight-through joint connection hole 17 is fixedly connected to the A0 straight-through joint 8, and the end of the A0 straight-through joint 8 away from the cylinder 1 is connected to the A0 introduction device 9;

[0047] The front end cover 2 and the rear end cover 3 are respectively fixedly connected to the two ends of the cylinder body 1 by bolts, and a plurality of cylinder front end cover fixing screw holes 13 and cylinder rear end cover fixing screw holes 19 are respectively opened on the cylinder walls at the front end and the rear end of the cylinder body 1, which are evenly distributed around the circumference of the cylinder body 1; the front end cover 2 is provided with a front end cover fixing through hole 20 matching the cylinder front end cover fixing screw hole 13, and the rear end cover 3 is provided with a rear end cover fixing through hole 25 matching the cylinder rear end cover fixing screw hole 19; a front end cover hollow portion 21 opening along the symmetry axis direction of the cylinder body 1 is opened at the center of the front end cover 2, and a nameplate 12 is fixed to the rear end cover 3 away from the cylinder body 1. The rotary encoder fixing bolts 7 and the bolts fixing the cylinder body 1 to the front end cover 2 and the rear end cover 3 are all hexagon socket bolts.

[0048] It has been verified that the shell structure of the explosion-proof rotary transformer encoder for mining of the utility model has a reasonable structural design and can conveniently fix the rotary encoder. The shell formed by the front cover and the rear cover at the front and rear ends of the cylinder can enable the rotary encoder to meet the explosion-proof requirements of GB3836. It can be used underground in coal mines containing methane explosive mixtures and coal dust, and has good application prospects.

[0049] Those skilled in the art should understand that those skilled in the art can implement variations by combining the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present utility model, and will not be described in detail here.

[0050] The above describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the above-mentioned specific implementation methods, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the utility model without departing from the scope of the technical solution of the utility model, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A mining flameproof rotary transformer encoder housing structure, characterized in that: It includes a cylinder, a front end cover, a rear end cover, a rotary encoder and a connecting shaft; The rotary encoder is arranged in the cylinder, and a partition with a through hole in the center for the rotary encoder to pass through is provided in the hollow part of the cylinder, and a rotary encoder fixing screw hole is provided on the partition, and the rotary encoder fixing bolt passes through the rotary encoder fixing screw hole to fix the rotary encoder to the cylinder; The front end cover and the rear end cover are respectively fixedly connected to the two ends of the cylinder body by bolts, and a front end cover hollow part opening along the symmetry axis direction of the cylinder body is opened at the center of the front end cover; One end of the connecting shaft is fixedly connected to the connecting end of the rotary encoder, and the other end passes through the cylinder from the hollow portion of the front end cover.

2. The flameproof rotary transformer encoder housing structure for mining according to claim 1 is characterized in that: A copper sleeve is sleeved on the outer wall of the connecting shaft and the copper sleeve is located between the connecting shaft and the front end cover; There are a plurality of rotary encoder fixing screw holes, and the plurality of rotary encoder fixing screw holes are evenly distributed around the circumference of the symmetry axis of the cylinder.

3. The flameproof rotary transformer encoder housing structure for mining use according to claim 1 is characterized in that: An A0 straight-through joint is fixed in the middle of the cylinder and is communicated with the hollow part of the cylinder. The A0 straight-through joint is connected with the A0 introduction device at the end away from the cylinder.

4. The flameproof rotary transformer encoder housing structure for mining use according to claim 1 is characterized in that: The hollow part of the cylinder includes a cylinder front end cover embedded part, a cylinder rotary encoder mounting part and a cylinder rear end cover embedded part which are connected in sequence; The inner embedded part of the front end cover of the cylinder body matches the front end cover, the installation part of the rotary encoder of the cylinder body matches the rotary encoder, and the inner embedded part of the rear end cover of the cylinder body matches the rear end cover; The partition is located between the embedded portion of the front end cover of the cylinder and the installation portion of the rotary encoder of the cylinder; The connecting end of the rotary encoder is inserted from the rotary encoder mounting portion of the barrel into the embedded portion of the front end cover of the barrel and is fixedly connected with the connecting shaft.

5. The shell structure of a flameproof rotary transformer encoder for mining according to claim 4 is characterized in that: A straight-through joint connecting hole is opened on the cylinder wall of the cylinder corresponding to the cylinder rotary encoder mounting portion, and the straight-through joint connecting hole is fixedly connected to the A0 straight-through joint.

6. The flameproof rotary transformer encoder housing structure for mining use according to claim 1 is characterized in that: The cylinder walls at the front end and the rear end of the cylinder are respectively provided with a plurality of cylinder front end cover fixing screw holes and cylinder rear end cover fixing screw holes which are evenly distributed around the circumference of the cylinder.

7. The flameproof rotary transformer encoder housing structure for mining use according to claim 6 is characterized in that: The front end cover is provided with a front end cover fixing through hole matching with the front end cover fixing screw hole of the cylinder body; The rear end cover is provided with a rear end cover fixing through hole which matches the rear end cover fixing screw hole of the cylinder body.

8. The flameproof rotary transformer encoder housing structure for mining use according to claim 1 is characterized in that: A nameplate is fixed to the rear end cover away from the cylinder body; The rotary encoder fixing bolts and the bolts fixing the cylinder body to the front cover and the rear cover are all hexagon socket bolts.

9. The flameproof rotary transformer encoder housing structure for mining use according to claim 1 is characterized in that: One end of the connecting shaft is provided with a connecting shaft front connecting hole coaxial with the connecting shaft, and the other end is provided with a rotary encoder connecting hole coaxial with the connecting shaft. The connecting shaft is also provided with a rotary encoder connecting fixing hole connected with the rotary encoder connecting hole.

10. The shell structure of a flameproof rotary transformer encoder for mining according to claim 9, characterized in that: The rotary encoder connection fixing hole is a screw hole; The rotary encoder connection and fixing hole is perpendicular to the rotary encoder connection hole.

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