Hydraulic coupler with quick dismounting function and dismounting method

Abstract

The invention discloses a hydraulic coupler with a quick dismounting function and a dismounting method.The hydraulic coupler with the quick dismounting function comprises a hydraulic coupling connecting disc, a hydraulic coupler body, a coupler dismounting assembly and an output shaft port fixing bolt, and the hydraulic coupling connecting disc is arranged at the input end of the hydraulic coupler body; the hydraulic coupler body is used for being connected with a power device, the coupler disassembling assembly is arranged in the middle of the hydraulic coupler body and used for separating the hydraulic coupler body from a speed reducer, and the output shaft port fixing bolt is arranged in the middle of the coupler disassembling assembly and used for being fixedly connected with a speed reducer shaft. Wherein the coupler disassembling assembly comprises a coupler output shaft, a hollow shaft and an annular valve element, the coupler output shaft is sleeved with the hollow shaft, and the annular valve element is arranged between the coupler output shaft and the hollow shaft in an axial sliding mode and used for separating the coupler output shaft from the speed reducer. Disassembly can be directly carried out on complete equipment, and the disassembly process is safe and reliable.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic couplings, and in particular relates to a hydraulic coupling with a quick disassembly function and a disassembly method. Background Art

[0002] The hydraulic coupling is one of the hydraulic components that uses the kinetic energy of liquid to transmit power. It is a non-rigid coupling that connects the power device and the reducer. The hydraulic coupling has soft start and overload protection functions, and reduces shock and vibration during operation. Therefore, it is widely used in underground coal mine transportation equipment, especially for equipment with large shock and vibration such as hammer crushers. It is an indispensable and important component.

[0003] The hydraulic coupling consists of two parts. The input coupling disc is connected to the power device, and the output end is connected in parallel with the high-speed shaft of the reducer to bear most of the weight of the coupling. The two are connected together by an elastic block. When the hydraulic coupling is damaged during use, the coupling needs to be removed from the high-speed shaft of the reducer. Since the hydraulic coupling is made of cast aluminum and cannot withstand strong prying or impact, the shell part cannot be knocked or subjected to other force methods during assembly and removal.

[0004] At present, hydraulic couplings are usually removed by disassembling screws, that is, by using a special screw sleeve on the disassembly end of the hydraulic coupling main shaft, screwing the disassembly screw into the reducer shaft end, and pushing the hydraulic coupling off the reducer shaft. However, the thread matching accuracy of the screw sleeve and the disassembly screw is not high, the friction resistance is large, the thread strength is insufficient, and it is easy to cause thread damage; secondly, it is inconvenient to disassemble, and it needs to be fixed on the ground before operation, and it cannot be directly disassembled on the whole equipment. Summary of the invention

[0005] In order to at least partially solve the technical problems existing in the above-mentioned prior art, the present invention provides a hydraulic coupling with a quick disassembly function and a disassembly method.

[0006] The hydraulic coupler with quick disassembly function of the present invention is installed between the power device and the reducer. The hydraulic coupler with quick disassembly function includes a hydraulic coupling disc, a hydraulic coupling body, a coupler disassembly assembly and an output shaft port fixing bolt. The hydraulic coupling disc is arranged at the input end of the hydraulic coupling body for connecting with the power device. The coupler disassembly assembly is arranged in the middle of the hydraulic coupling body for separating the hydraulic coupling body from the reducer. The output shaft port fixing bolt is arranged in the middle of the coupler disassembly assembly for connecting and fixing with the reducer shaft, wherein:

[0007] The coupler disassembly assembly includes a coupler output shaft, a hollow shaft and an annular valve core, wherein the hollow shaft is sleeved on the coupler output shaft, and the annular valve core is axially slidably arranged between the coupler output shaft and the hollow shaft for separating the coupler output shaft from the reducer.

[0008] Furthermore, in the above-mentioned hydraulic coupling with quick disassembly function, the coupler output shaft is a hollow structure and is installed in the middle part of the hydraulic coupling body. The rear end of the coupler output shaft is transitionally matched with the reducer input shaft. A threaded hole is arranged around the front end of the coupler output shaft. A liquid return channel is arranged on one side of the coupler output shaft close to the threaded hole. A limit platform is arranged on the inner wall in the middle part of the coupler output shaft.

[0009] Furthermore, in the above-mentioned hydraulic coupling with quick disassembly function, a mounting plate is provided at the front end of the hollow shaft, and the diameter of the mounting plate matches the diameter of the front end of the coupler output shaft. A mounting hole is arranged around the mounting plate, and the mounting hole is coaxial with the threaded hole. The mounting plate is fixedly connected to the coupler output shaft by bolts, and a liquid return hole is provided on the side of the mounting plate close to the mounting hole, and the liquid return hole is connected to the liquid return channel. A liquid inlet hole is provided on the inner side of the mounting plate corresponding to the mounting hole, and a connecting hole is provided in the center of the hollow shaft, and the connecting hole matches the output shaft port fixing bolt, and the output shaft port fixing bolt passes through the connecting hole to be connected and fixed to the reducer shaft.

[0010] Furthermore, in the above-mentioned hydraulic coupling with quick disassembly function, a clamping platform is arranged on the top of the annular valve core, the coupler output shaft, the hollow shaft, the mounting plate and the clamping platform form a pushing cavity, the clamping platform matches the pushing cavity, the liquid inlet hole is connected to the front end of the pushing cavity, and the liquid return channel is connected to the end of the pushing cavity.

[0011] Furthermore, in the above-mentioned hydraulic coupling with quick disassembly function, annular grooves are arranged on the limit platform, the mounting plate, the clamping platform and the annular valve core, and a sealing ring is arranged on the annular groove.

[0012] Furthermore, in the above-mentioned hydraulic coupling with quick disassembly function, the hydraulic coupling coupling disc and the hydraulic coupling body are connected via a coupler elastic block.

[0013] The disassembly method of the hydraulic coupling with quick disassembly function of the present invention comprises:

[0014] First, take out the coupler elastic block to separate the hydraulic coupling coupling plate from the hydraulic coupling body, and remove the output shaft port fixing bolts. At this time, connect one end of the hydraulic system to the liquid inlet hole and the other end of the hydraulic system to the liquid return hole. Start the hydraulic oil at one end of the hydraulic system to enter the push cavity through the liquid inlet hole, and push the card table to make the annular valve core move axially toward the reducer, and gradually push the reducer shaft out of the coupler output shaft until the card table contacts the limit table and the hydraulic system stops supplying oil to the push cavity, thereby separating the reducer from the hydraulic coupling. At this time, the hydraulic oil at the other end of the hydraulic system enters the push cavity through the liquid return hole, and pushes the card table to make the annular valve core move axially toward the power unit, reset the annular valve core, and complete the disassembly.

[0015] The hydraulic coupling with quick disassembly function and the disassembly method of the present invention have the following advantages and beneficial effects:

[0016] The overall structure of the present invention is compact, and the disassembly method implemented by the device is simple to operate. It can be directly disassembled on the whole machine. The coupler and the reducer are separated by hydraulic pressure, which saves time and effort, effectively protects the structure of the coupler and the reducer itself, and the disassembly process is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the present invention and constitute a part of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the hydraulic coupling with quick disassembly function of the present invention;

[0019] Figure 2 It is an enlarged structural schematic diagram of a coupler disassembly assembly of a hydraulic coupler with a quick disassembly function of the present invention;

[0020] Figure 3 A schematic diagram of the structure of a coupler output shaft of a hydraulic coupler with a quick disassembly function according to the present invention;

[0021] Figure 4 Schematic diagram of the hollow shaft structure of the hydraulic coupling with quick disassembly function of the present invention, wherein a is a top view of the hollow shaft, and b is a cross-sectional view of the hollow shaft;

[0022] Figure 5 It is a schematic diagram of the structure of the annular valve core of the hydraulic coupling with quick disassembly function of the present invention;

[0023] Figure 6 The figure is a schematic diagram of the disassembly process of the hydraulic coupling with quick disassembly function of the present invention.

[0024] Description of reference numerals:

[0025] 100: power unit, 200: reducer;

[0026] 1: hydraulic coupling disc, 11: coupling elastic block;

[0027] 2: Fluid coupling body;

[0028] 3: Coupler disassembly assembly;

[0029] 31: coupler output shaft, 311: threaded hole, 312: liquid return channel, 313: limit table;

[0030] 32: hollow shaft, 321: mounting plate, 322: mounting hole, 323: liquid return hole, 324: liquid inlet hole, 325: connecting hole;

[0031] 33: annular valve core, 331: card table;

[0032] 4: Output shaft port fixing bolt; 5: Push cavity; 6: Annular groove. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] like Figures 1 to 5 As shown, the hydraulic coupler with a quick disassembly function of the present invention is installed between the power device 100 and the reducer 200. The hydraulic coupler with a quick disassembly function includes a hydraulic coupling disc 1, a hydraulic coupling body 2, a coupler disassembly assembly 3 and an output shaft port fixing bolt 4. The hydraulic coupling disc 1 is arranged at the input end of the hydraulic coupling body 2 for connecting with the power device 100. The coupler disassembly assembly 3 is arranged in the middle of the hydraulic coupling body 2 for separating the hydraulic coupling body 2 from the reducer 200. The output shaft port fixing bolt 4 is arranged in the middle of the coupler disassembly assembly 3 for connecting and fixing with the reducer 200 shaft, wherein:

[0035] The coupler disassembly assembly 3 includes a coupler output shaft 31, a hollow shaft 32 and an annular valve core 33. The hollow shaft 32 is sleeved on the coupler output shaft 31. The annular valve core 33 can be axially slidably arranged between the coupler output shaft 31 and the hollow shaft 32 for separating the coupler output shaft 31 from the reducer 200.

[0036] Furthermore, in the hydraulic coupling with quick disassembly function of the present invention, the coupler output shaft 31 is hollow in structure and is installed in the middle of the hydraulic coupling body 2. The rear end of the coupler output shaft 31 is transitionally matched with the input shaft of the reducer 200. A threaded hole 311 is arranged around the front end of the coupler output shaft 31. A liquid return channel 312 is arranged on the side of the coupler output shaft 31 close to the threaded hole 311. A limit platform 313 is arranged on the inner wall in the middle of the coupler output shaft 31, wherein the limit platform 313 is an annular platform, and the middle diameter is equal to the outer diameter of the annular valve core 33, thereby ensuring that the annular valve core 33 can move axially.

[0037] Furthermore, in the hydraulic coupling with quick disassembly function of the present invention, a mounting plate 321 is provided at the front end of the hollow shaft 32, and the diameter of the mounting plate 321 matches the diameter of the front end of the coupler output shaft 31. A mounting hole 322 is arranged around the mounting plate 321, and the mounting hole 322 is coaxial with the threaded hole 311. The mounting plate 321 is fixedly connected to the coupler output shaft 31 by bolts. A liquid return hole 323 is provided on the side of the mounting plate 321 close to the mounting hole 322, and the liquid return hole 323 is connected to the liquid return channel 312. A liquid inlet hole 324 is provided on the inner side of the mounting hole 322 corresponding to the mounting plate 321. A connecting hole 325 is provided in the center of the hollow shaft 32, and the connecting hole 325 matches the output shaft port fixing bolt 4. The output shaft port fixing bolt 4 passes through the connecting hole 325 and is connected and fixed to the reducer 200 shaft, so that the hollow shaft 32 and the coupler output shaft 31 form a hydraulic cylinder body.

[0038] Furthermore, in the hydraulic coupling with quick disassembly function of the present invention, a clamping platform 331 is arranged on the top of the annular valve core 33, and the coupler output shaft 31, the hollow shaft 32, the mounting plate 321 and the clamping platform 331 surround the pushing cavity 5, the clamping platform 331 matches the pushing cavity 5, the liquid inlet hole 324 is connected with the front end of the pushing cavity 5, and the return liquid channel 312 is connected with the end of the pushing cavity 5, so that the annular valve core 33 can move axially when hydraulic oil is introduced into the pushing cavity 5 through the liquid inlet hole 324.

[0039] Furthermore, in the hydraulic coupling with quick disassembly function of the present invention, an annular groove 6 is provided on the limit platform 313, the mounting plate 321, the clamping platform 331 and the annular valve core 33, and a sealing ring is provided on the annular groove 6, so that the push cavity 5 forms a sealed space, which effectively ensures that the pressure of the hydraulic oil after entering the push cavity 5 can separate the coupler output shaft 31 from the reducer 200.

[0040] Furthermore, in the above-mentioned hydraulic coupling with quick disassembly function, the hydraulic coupling coupling disc 1 and the hydraulic coupling body 2 are connected via a coupling elastic block 11 .

[0041] The disassembly method implemented by the device includes:

[0042] like Figure 6 As shown, first, the coupler elastic block 11 is taken out to separate the hydraulic coupling coupling disc 1 from the hydraulic coupling body 2, and the output shaft port fixing bolt 4 is removed. At this time, one end of the hydraulic system is connected to the liquid inlet hole 324, and the other end of the hydraulic system is connected to the liquid return hole 323. The hydraulic oil at one end of the hydraulic system is started to enter the push cavity 5 through the liquid inlet hole 324, and the annular valve core 33 is moved axially toward the reducer 200 by pushing the clamping platform 331, and the reducer 200 shaft is gradually pushed out of the coupler output shaft 31 until the clamping platform 331 contacts the limit platform 313, and the hydraulic system stops supplying oil to the push cavity 5, thereby separating the reducer 200 from the hydraulic coupling. At this time, the hydraulic oil at the other end of the hydraulic system enters the push cavity 5 through the liquid return hole 323, and the annular valve core 33 is moved axially toward the power device 100 by pushing the clamping platform 331, and the annular valve core 33 is reset to complete the disassembly, thereby achieving the purpose of rapid disassembly and assembly.

[0043] In summary, compared with the prior art, the hydraulic coupling with quick disassembly function and the disassembly method of the present invention have the following advantages and beneficial effects:

[0044] The overall structure of the present invention is compact, and the disassembly method implemented by the device is simple to operate. It can be directly disassembled on the whole machine. The coupler and the reducer are separated by hydraulic pressure, which saves time and effort, effectively protects the structure of the coupler and the reducer itself, and the disassembly process is safe and reliable.

[0045] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper" and "lower" in this article are all referenced to the placement state shown in the accompanying drawings.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydraulic coupling with quick disassembly function, installed between a power unit and a reducer, characterized in that: The hydraulic coupler with quick disassembly function comprises a hydraulic coupling disc, a hydraulic coupling body, a coupler disassembly assembly and an output shaft port fixing bolt, wherein the hydraulic coupling disc is arranged at the input end of the hydraulic coupling body for connecting with a power device, the coupler disassembly assembly is arranged at the middle of the hydraulic coupling body for separating the hydraulic coupling body from the reducer, and the output shaft port fixing bolt is arranged at the middle of the coupler disassembly assembly for connecting and fixing with the reducer shaft, wherein: The coupler disassembly assembly includes a coupler output shaft, a hollow shaft and an annular valve core, wherein the hollow shaft is sleeved on the coupler output shaft, and the annular valve core is axially slidably arranged between the coupler output shaft and the hollow shaft for separating the coupler output shaft from the reducer.

2. The hydraulic coupling with quick disassembly function according to claim 1, characterized in that: The coupler output shaft is of a hollow structure and is installed in the middle of the hydraulic coupler body. The rear end of the coupler output shaft is transitionally matched with the reducer input shaft. A threaded hole is arranged around the front end of the coupler output shaft. A liquid return channel is arranged on one side of the coupler output shaft close to the threaded hole. A limit platform is arranged on the inner wall in the middle of the coupler output shaft.

3. The hydraulic coupling with quick disassembly function according to claim 2, characterized in that: A mounting plate is provided at the front end of the hollow shaft, and the diameter of the mounting plate matches the diameter of the front end of the coupler output shaft. A mounting hole is arranged around the mounting plate, and the mounting hole is coaxial with the threaded hole. The mounting plate is fixedly connected to the coupler output shaft through bolts, and a liquid return hole is provided on one side of the mounting plate close to the mounting hole, and the liquid return hole is communicated with the liquid return channel. A liquid inlet hole is provided on the inner side of the mounting plate corresponding to the mounting hole, and a connecting hole is provided at the center of the hollow shaft, and the connecting hole matches the output shaft port fixing bolt, and the output shaft port fixing bolt passes through the connecting hole and is connected and fixed to the reducer shaft.

4. The hydraulic coupling with quick disassembly function according to claim 3, characterized in that: A clamping platform is arranged on the top of the annular valve core, and the coupler output shaft, the hollow shaft, the mounting plate and the clamping platform form a pushing cavity. The clamping platform matches the pushing cavity, the liquid inlet hole is connected with the front end of the pushing cavity, and the liquid return channel is connected with the end of the pushing cavity.

5. The hydraulic coupling with quick disassembly function according to claim 4, characterized in that: The limiting platform, the mounting plate, the clamping platform and the annular valve core are all provided with annular grooves, and a sealing ring is provided on the annular groove.

6. The hydraulic coupling with quick disassembly function according to claim 1, characterized in that: The hydraulic coupling disc is connected to the hydraulic coupling body via a coupler elastic block.

7. A disassembly method using a hydraulic coupling with a quick disassembly function according to any one of claims 1 to 6, characterized in that: The method for disassembling a hydraulic coupling with a quick disassembly function comprises: First, take out the coupler elastic block to separate the hydraulic coupling coupling plate from the hydraulic coupling body, and remove the output shaft port fixing bolts. At this time, connect one end of the hydraulic system to the liquid inlet hole and the other end of the hydraulic system to the liquid return hole. Start the hydraulic oil at one end of the hydraulic system to enter the push cavity through the liquid inlet hole, and push the card table to make the annular valve core move axially toward the reducer, and gradually push the reducer shaft out of the coupler output shaft until the card table contacts the limit table and the hydraulic system stops supplying oil to the push cavity, thereby separating the reducer from the hydraulic coupling. At this time, the hydraulic oil at the other end of the hydraulic system enters the push cavity through the liquid return hole, and pushes the card table to make the annular valve core move axially toward the power unit, reset the annular valve core, and complete the disassembly.

Images