Reduction gearbox sealing performance testing device

Abstract

The utility model discloses a sealing performance testing device for a reduction gearbox, and the device comprises a conversion connector which is used for being connected with a water sealing sleeve of the reduction gearbox; the sealing plate is used for sealing the transition joint; one side of the sealing plate is provided with an extension ring and a ring groove, the extension ring extends into the transition joint, and a sealing ring is mounted in the ring groove; the fixing tool is used for connecting the sealing plate and the transition joint; and the pressure test assembly comprises a pressure test pump and a pressure test pipe, and the pressure test pipe is used for connecting the pressure test pump and the adapter. According to the sealing performance testing device for the reduction gearbox, the transition joint is sealed through the sealing plate and the fixing tool, the connection between the pressure testing assembly and the water sealing sleeve is realized through the conversion joint, the structure is simple, the pressure testing is convenient, and the sealing performance detection cost is low; the sealing performance test is performed through the pressure test assembly, so that the detection efficiency and the detection quality can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing test equipment, in particular to a reduction box sealing test device. Background Art

[0002] As mining gradually develops deeper underground, mining processes and methods are constantly changing, and the development of modern mines urgently requires large-diameter deep shaft excavation equipment. In the pilot hole and hole expansion operations of the shaft drilling rig, in order to clean the broken rocks in the drill rod and cool the cutterhead, it is necessary to circulate cooling water from the reduction gearbox water jacket into the middle of the drill rod to cool the drill rod. In order to prevent the circulating cooling water from entering the reduction gearbox due to unqualified sealing inside the reduction gearbox, causing the shaft drilling rig to work abnormally or even cause equipment accidents, it is necessary to test the sealing performance of the reduction gearbox. At present, the reduction gearboxes for large-diameter deep shaft drilling rigs in China are generally inspected by manual naked eye, which is prone to detection errors. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a reduction gearbox sealing test device, which can effectively improve the detection efficiency and detection quality.

[0004] The reduction gearbox sealing test device according to the embodiment of the utility model comprises:

[0005] Conversion joint, used to connect with the water sealing jacket of the reduction gearbox;

[0006] A sealing plate, used for sealing the transition joint; an extension ring and an annular groove are provided on one side of the sealing plate, the extension ring extends into the transition joint, and a sealing ring is installed in the annular groove;

[0007] A fixing device for connecting the sealing plate and the transition joint;

[0008] The pressure test assembly comprises a pressure test pump and a pressure test pipe, wherein the pressure test pipe is used to connect the pressure test pump and the conversion joint.

[0009] The reduction gearbox sealing test device according to the embodiment of the utility model has at least the following beneficial effects:

[0010] The transition joint is sealed by setting a sealing plate and a fixing fixture, and the connection between the pressure test assembly and the water sealing jacket is achieved through a conversion joint. The structure is simple, the pressure test is convenient, and the cost of detecting the sealing is low. The sealing test through the pressure test assembly can effectively improve the detection efficiency and detection quality.

[0011] According to some embodiments of the present invention, the distance between the annular groove and the extension ring is not less than 5 mm.

[0012] According to some embodiments of the utility model, the fixing tool includes a bottom plate and a side plate, the side plate is arranged around the edge of the bottom plate; the sealing plate is installed on the bottom plate, and the side plate is connected to the transition joint by locking bolts.

[0013] According to some embodiments of the utility model, the bottom plate is provided with a threaded hole penetrating the bottom plate, the threaded hole is connected with a clamping bolt, and the clamping bolt is used to clamp the sealing plate to the transition joint.

[0014] According to some embodiments of the utility model, the side plate is installed with an anti-sliding block, and the locking bolt passes through the side plate and abuts against the anti-sliding block to tighten the anti-sliding block to the transition joint.

[0015] According to some embodiments of the present utility model, the side plate is provided with a slot, and the anti-sliding block is installed in the slot.

[0016] According to some embodiments of the present invention, the length extension direction of the card slot is the width direction of the side plate.

[0017] According to some embodiments of the utility model, the inner side of the anti-slip block is provided with an anti-slip structure protruding from the surface thereof, and the outer side of the anti-slip block is provided with a positioning hole for partially embedding the locking bolt.

[0018] According to some embodiments of the present invention, the inner side surface of the anti-slip member is processed by sandblasting.

[0019] According to some embodiments of the utility model, a plurality of anti-sliding blocks are provided, and the plurality of anti-sliding blocks are evenly spaced around a circumference; and a plurality of locking bolts are provided corresponding to the anti-sliding blocks.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 This is a schematic diagram of the installation and use of an embodiment of the utility model;

[0023] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0024] Figure 3 for Figure 2 Schematic diagram of the structure of the fixed tooling;

[0025] Figure 4 for Figure 2Schematic diagram of the structure of the middle sealing ring.

[0026] Figure Number:

[0027] Adapter 100;

[0028] Sealing plate 200, extension ring 210, annular groove 220, sealing ring 221;

[0029] The fixing device 300, the bottom plate 310, the fastening bolts 311, the side plate 320, the locking bolts 321, the slots 322, the anti-slip block 330, and the anti-slip structure 331;

[0030] A pressure test assembly 400, a pressure test pump 410, and a pressure test tube 420;

[0031] Reducer box 500 , water sealing jacket 510 , transition joint 520 . DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] A reduction gearbox sealing test device according to an embodiment of the utility model is mainly used for performing sealing test on a reduction gearbox 500 for a skydrill. Currently, most of the reduction gearboxes 500 for skydrills are not tested for sealing by equipment, but mainly rely on manual observation. Not only is the detection method not rigorous, but detection errors are prone to occur. Therefore, this embodiment provides a sealing test device to replace manual sealing test on the reduction gearbox 500, thereby improving detection efficiency and detection quality, thereby reducing the occurrence of detection errors.

[0037] Reference Figure 1 As shown, the top of the reducer 500 for the skydrilling machine is provided with a water-sealing jacket 510, and the bottom is connected with a transition joint 520, and the middle of the water-sealing jacket 510 and the transition joint 520 are connected; when the reducer 500 is tested, the bottom of the transition joint 520 is sealed, and then water of a set pressure is injected into the water-sealing jacket 510 and maintained for a set time, and then observe whether the water pressure drops and whether water leaks out within the set time period. If there is no pressure drop and water leakage within the set time period, it is judged that the sealing effect of this reducer 500 is good, otherwise it means that the sealing effect of this reducer 500 is poor and maintenance is required. The test device of this embodiment is described in detail below in conjunction with the accompanying drawings.

[0038] Reference Figures 1 to 4 The gearbox sealing test device of the embodiment of the utility model includes a conversion joint 100, a sealing plate 200, a fixing tool 300 and a pressure test assembly 400. The conversion joint 100 is connected to the water sealing jacket 510 of the gearbox 500. The sealing plate 200 is connected to the transition joint 520 through the fixing tool 300. The sealing plate 200 is used to seal the bottom of the transition joint 520. The pressure test assembly 400 includes a pressure test pump 410 and a pressure test pipe 420. The pressure test pipe 420 is used to connect the pressure test pump 410 and the conversion joint 100. The pressure test pump 410 and the pressure test pipe 420 generally adopt the existing technology, and their specific models can be purchased according to actual needs. The conversion joint 100 is used to convert the pipe diameter of the water sealing jacket 510 into a pipe diameter suitable for connection with the pressure test pipe 420. Therefore, different conversion joints 100 are required for the water sealing jackets 510 of the gearboxes 500 of different sizes. According to the gearbox sealing test device of the embodiment of the utility model, the transition joint 520 is sealed by setting the sealing plate 200 and the fixing tool 300, and the connection between the pressure test component 400 and the water sealing jacket 510 is realized through the conversion joint 100. The structure is simple, the pressure test is convenient, and the cost of sealing detection is low. The sealing test is performed through the pressure test component 400, which can effectively improve the detection efficiency and detection quality.

[0039] In the embodiment of the utility model, an extension ring 210 and an annular groove 220 are provided on one side of the sealing plate 200. The extension ring 210 extends into the transition joint 520. A sealing ring 221 is installed in the annular groove 220. The spacing between the annular groove 220 and the extension ring 210 is not less than 5 mm. Figure 2 , Figure 4 As shown, the sealing plate 200 is circular, the extension ring 210 is concentric with the sealing plate 200, and the extension ring 210 is arranged in the middle of the sealing plate 200, and the outer diameter of the extension ring 210 is substantially consistent with the inner diameter of the transition joint 520; the annular groove 220 is arranged on the outer periphery of the extension ring 210, and the depth of the annular groove 220 is slightly smaller than the diameter of the sealing ring 221 to ensure that the sealing ring 221 can contact the lower surface of the transition joint 520. The spacing between the annular groove 220 and the extension ring 210 is not less than 5 mm to ensure the sealing effect.

[0040] In the embodiment of the present invention, the fixing fixture 300 includes a bottom plate 310 and a side plate 320, the side plate 320 is arranged around the edge of the bottom plate 310; the sealing plate 200 is installed on the bottom plate 310, and the side plate 320 is connected to the transition joint 520 by a locking bolt 321. Figure 2 , Figure 3 As shown, the bottom plate 310 is circular, and the diameter of the bottom plate 310 is substantially the same as the diameter of the sealing plate 200, the side plate 320 is annular, and the side plate 320 and the bottom plate 310 are connected as an integral structure, for example, by welding. A receiving groove is formed between the inner surface of the side plate 320 and the upper surface of the bottom plate 310 for the transition joint 520 to be inserted. When the transition joint 520 is installed in the receiving groove of the fixing fixture 300, the bottom of the transition joint 520 will abut against the sealing plate 200, and then the locking bolt 321 passes through the side plate 320 and abuts against the outer surface of the transition joint 520.

[0041] In the embodiment of the utility model, the side plate 320 is installed with a plurality of locking bolts 321, and the plurality of locking bolts 321 are evenly spaced around the circumference. In this embodiment, there are four locking bolts 321, and the number of locking bolts 321 can be increased or decreased accordingly according to the diameter of the transition joint 520.

[0042] In the embodiment of the present invention, the side plate 320 is installed with an anti-sliding block 330, and the locking bolt 321 passes through the side plate 320 and abuts against the anti-sliding block 330 to tighten the anti-sliding block 330 against the transition joint 520. Figure 3 As shown, the purpose of providing the anti-sliding plate 330 is to increase the friction between the side plate 320 and the outer surface of the transition joint 520, thereby making the connection between the fixing tool 300 and the transition joint 520 more secure, thereby ensuring that the sealing plate 200 can better seal the bottom of the transition joint 520.

[0043] In an embodiment of the utility model, the side panel 320 is provided with a slot 322, and the anti-sliding block 330 is installed in the slot 322, that is, the anti-sliding block 330 is detachably connected to the side panel 320, so that the side panel 320 or the slot 322 can be replaced separately, thereby reducing maintenance costs.

[0044] Further, in the embodiment of the present invention, the length extension direction of the slot 322 is the width direction of the side plate 320, and the width direction of the side plate 320 is also the length extension direction of the transition joint 520. It is conceivable that the length extension direction of the slot 322 can also be the circumferential direction.

[0045] In the embodiment of the utility model, the card slot 322 is an open slot, and the top of the card slot 322 is an open setting, so that the design can facilitate the placement and removal of the card slot 322 and the installation of the transition joint 520. In another embodiment, the top of the card slot 322 can also be closed.

[0046] In the embodiment of the utility model, the inner side of the anti-slip block 330 is provided with an anti-slip structure 331 protruding from its surface, and the outer side of the anti-slip block 330 is provided with a positioning hole for partially embedding the locking bolt 321. Specifically, the inner side of the anti-slip block 330 is treated by a sandblasting process, and the sandblasting process is also to increase the friction between the anti-slip block 330 and the transition joint 520, thereby ensuring the connection stability between the fixing fixture 300 and the transition joint 520. The bottom of the slot 322 is provided with a threaded hole that passes through the bottom of the slot 322. When the anti-slip block 330 is installed in the slot 322, the positioning hole is aligned with the threaded hole; the end of the locking bolt 321 passes through the threaded hole at the bottom of the slot 322 and is embedded in the positioning hole, and then the locking bolt 321 is tightened to achieve the tightness of the anti-slip block 330 and the transition joint 520.

[0047] In the embodiment of the utility model, a plurality of anti-sliding blocks 330 are provided, and the plurality of anti-sliding blocks 330 are evenly spaced around the circumference; a plurality of locking bolts 321 are provided corresponding to the anti-sliding blocks 330, and the plurality of locking bolts 321 are respectively used to tighten the anti-sliding blocks 330 against the transition joint 520. A plurality of slots 322 of the side plate 320 are provided corresponding to the anti-sliding blocks 330.

[0048] In the embodiment of the present invention, the bottom plate 310 is provided with a threaded hole penetrating the bottom plate 310, and a tightening bolt 311 is connected to the threaded hole. The tightening bolt 311 is used to tighten the sealing plate 200 to the transition joint 520. Figure 3 As shown, there are also multiple threaded holes, which are evenly spaced around the circumference; there are multiple tightening bolts 311 corresponding to the threaded holes, and the multiple tightening bolts 311 are used to tighten the sealing plate 200 to the bottom of the transition joint 520, thereby ensuring the sealing effect of the sealing plate 200.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0050] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A reduction gearbox sealing test device, characterized in that: include: Conversion joint, used to connect with the water sealing jacket of the reduction gearbox; A sealing plate, used for sealing the transition joint; an extension ring and an annular groove are provided on one side of the sealing plate, the extension ring extends into the transition joint, and a sealing ring is installed in the annular groove; A fixing device for connecting the sealing plate and the transition joint; The pressure test assembly comprises a pressure test pump and a pressure test pipe, wherein the pressure test pipe is used to connect the pressure test pump and the conversion joint.

2. The reduction gearbox sealing test device according to claim 1, characterized in that: The distance between the annular groove and the extension ring is not less than 5 mm.

3. The reduction gearbox sealing test device according to claim 1, characterized in that: The fixing fixture comprises a bottom plate and side plates, wherein the side plates are arranged around the edge of the bottom plate; the sealing plate is installed on the bottom plate, and the side plates are connected to the transition joint via locking bolts.

4. The reduction gearbox sealing test device according to claim 3, characterized in that: The bottom plate is provided with a threaded hole penetrating the bottom plate, and the threaded hole is connected with a tightening bolt, and the tightening bolt is used to tighten the sealing plate to the transition joint.

5. The reduction gearbox sealing test device according to claim 3, characterized in that: The side plate is installed with an anti-sliding block, and the locking bolt passes through the side plate and abuts against the anti-sliding block to tighten the anti-sliding block to the transition joint.

6. The reduction gearbox sealing test device according to claim 5, characterized in that: The side plate is provided with a slot, and the anti-sliding block is installed in the slot.

7. The reduction gearbox sealing test device according to claim 6, characterized in that: The length extension direction of the card slot is the width direction of the side plate.

8. The reduction gearbox sealing test device according to claim 5, characterized in that: The inner side of the anti-sliding block is provided with an anti-slip structure protruding from the surface thereof, and the outer side of the anti-sliding block is provided with a positioning hole for partially embedding the locking bolt.

9. The reduction gearbox sealing test device according to claim 8, characterized in that: The inner side surface of the anti-slip block is processed by sandblasting.

10. The reduction gearbox sealing test device according to claim 5, characterized in that: There are multiple anti-sliding blocks, and the multiple anti-sliding blocks are evenly spaced around the circumference; there are multiple locking bolts corresponding to the anti-sliding blocks.

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