CN112815078A

CN112815078A - Worm gear speed reducer and oil filtering method thereof

Info

Publication number: CN112815078A
Application number: CN202110355168.4A
Authority: CN
Inventors: 郑权峰
Original assignee: Zhejiang Xiafeng Precision Die Casting Co ltd
Current assignee: Zhejiang Xiafeng Precision Die Casting Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-05-18
Anticipated expiration: 2041-04-01
Also published as: CN112815078B

Abstract

The invention relates to a worm gear speed reducer, which comprises a machine body, a worm gear fixedly arranged in the machine body and a worm penetrating through the machine body and matched with the worm gear, wherein the upper end of the machine body is provided with an oil inlet, the outer side of the machine body is provided with an oil outlet, a pressure lubricating device is also fixedly arranged on the machine body, a fixed seat used for rotating and sealing the worm is also arranged in the machine body, and the pressure lubricating device comprises a first filtering device arranged at the oil inlet, a second filtering device arranged at the oil outlet, an oil storage tank, a pressure pump arranged at the upper end of the machine body and communicated with the first filtering device, and an oil suction pump used for communicating the. The invention has the beneficial effects that: realized changing the self-cleaning of device filter core to filtering, and enabled the filter core and be in the filtering part of opening part and switch, improved the life of filter core, the cost is reduced has also promoted the availability factor of speed reducer simultaneously.

Description

Worm gear speed reducer and oil filtering method thereof

Technical Field

The invention relates to the technical field of speed reducers, in particular to a worm gear speed reducer and an oil filtering method thereof.

Background

The worm reducer is a power transmission mechanism of the worm reducer, and utilizes a speed converter of a gear to reduce the mutual rotation speed of a motor to a required rotation number and obtain a larger torque.

Along with the development of times and science and technology, the technological progress of the worm gear reducer is promoted while the technological progress is advanced, in the prior art, the worm gear reducer motor needs to be frequently lubricated by oiling, but impurities are often mixed in lubricating oil, a filtering device needs to be assembled to filter the lubricating oil, so that the impurities are prevented from remaining in the motor, but the existing filtering device needs to be frequently taken out of a filter element to be cleaned or replaced to prevent blockage, but the manual operation is very troublesome, and the working efficiency is influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a worm gear speed reducer and an oil filtering method thereof, so as to solve the problems.

The technical scheme of the invention is realized as follows: the utility model provides a worm gear speed reducer, which comprises a bod, fixed mounting is at the inside worm wheel of organism and runs through organism and worm wheel matched with worm, the oil inlet has been seted up to the organism upper end, the oil-out has been seted up in the organism outside, it has pressure lubrication device still to fix on the organism, still be equipped with the fixing base that is used for the rotary seal worm in the organism, pressure lubrication device is including setting up the first filter equipment at the oil inlet, the second filter equipment of setting at the oil-out, the oil storage tank, the setting is at the organism upper end and the force pump of first filter equipment intercommunication, an oil suction pump for communicateing second filter equipment and oil.

Through adopting above-mentioned technical scheme, realized the filtration to lubricating oil and to filter equipment's self-cleaning, need not frequently to take out the filter core clearance, labour saving and time saving has improved the availability factor, collects the filterable impurity of filtration and lubricated back with different collecting boxes before lubricating simultaneously, the categorised recovery of being convenient for, convenient and fast.

The invention is further configured to: the fixing bases are two, a sealing block is arranged between the two fixing bases, and the sealing block is attached to the worm.

Through adopting above-mentioned technical scheme, improve the leakproofness between worm and the organism, prevent that lubricating oil from revealing.

The invention is further configured to: the first filtering device comprises a filtering box and a filtering core, a first cavity is arranged in the filtering box, a second cavity arranged around the first cavity is arranged in the filtering box, an opening for medium circulation is formed between the second cavity and the first cavity, an oil inlet for high-pressure medium to flow in is formed in the side wall of the second cavity, the oil inlet is communicated with the second cavity, the oil inlet and the opening are arranged at the same horizontal height, the width of the opening is the same as the diameter of the oil inlet, a third cavity for chip removal is also formed in the filtering box, the third cavity is communicated with the second cavity, a first piston and a second piston are respectively arranged in the first cavity and the third cavity, the third cavity is arranged in a T shape, a first electric telescopic rod matched with the second piston is embedded in the cavity wall of the third cavity, a stop block is fixedly arranged at the movable end of the first electric telescopic rod, and the second cavity is positioned in the middle of the first cavity, one side of the upper end edge of the first cavity is fixedly connected with a communicating pipe which is embedded in the filter box and used for conveying a medium into the machine body, a chip removal pipe which is communicated with the third cavity is also embedded in the filter box, and a check valve is fixedly installed in the communicating pipe and the chip removal pipe.

Through adopting above-mentioned technical scheme, the pressure pump gets the lubricating oil in the oil storage tank through the extraction when the speed reducer moves and represses to the organism inside through first filter equipment, and when first piston for the state that contracts, the second piston is for stretching out the state, and first electric telescopic handle carries out the auxiliary stay for the second piston for stretching out the state, alleviates the load of second piston, and lubricating oil is normally filtered by the filter core and is carried to the organism inside this moment, and the length of first cavity is the triple of second cavity, makes lubricating oil have sufficient transport space.

The invention is further configured to: the upper end of the first cavity is provided with a convex block which is arranged in a protruding manner and is integrally formed with the filter box, the filter box is provided with a threaded through hole which penetrates through the convex block, a screw rod which is matched with the threaded through hole is arranged in the threaded through hole, the screw rod protrudes out of the filter box, the tail end of the screw rod is fixedly connected with a first hand wheel, the screw rod is arranged in a hollow manner, a fixed rod is rotationally and hermetically connected in the screw rod, one end of the fixed rod, which is positioned outside the filter box, is fixedly connected with a fixed block, the fixed block is hinged with a connecting rod, the connecting rod is provided with two connecting rods, one end of the connecting rod, which is far away from the fixed block, is hinged with a clamping block, the inner side of the filter core is provided with a clamping groove which is matched with the clamping block, the notch of the lower end of the second annular groove is provided with threads, the filter box is externally provided with a sealing cover matched with the second annular groove, a bulge integrally formed with the filter box is arranged between the convex block and the filter element, and the lower end face of the bulge is obliquely arranged.

By adopting the technical scheme, the first piston extends out, the second piston and the second electric telescopic rod retract, the communicating pipe parts are communicated, lubricating oil flowing into the oil inlet at the moment erodes the filter element at the opening, impurities accumulated on the surface of the filter element are filled and brushed into the second cavity and then flow into the third cavity to be discharged and collected along with the chip removal pipe, self-cleaning is realized, convenience and rapidness are realized, when the filter element is used for a long time, the position of the filter element can be adjusted by rotating the screw rod and the fixed rod through the hand wheel, the filtering part of the filter element at the opening is switched, the service life of the filter element is prolonged, the replacement cost is reduced, the spring plays a role of auxiliary support in normal use of the filter element, the filter element is not easy to deviate, the filtering effect is influenced, when the filter element needs to be replaced, the pressure pump is closed, the screw rod is outwards moved by rotating the, make connecting rod and arch offset, make the contained angle between two connecting rods diminish for the connecting rod drives the fixture block and breaks away from the filter core, rotatory closing cap this moment take out the filter core change can, easy operation, it is convenient to change.

The invention is further configured to: the outer sides of the first filtering device and the second filtering device are respectively and fixedly provided with a first collecting box and a second collecting box.

Through adopting above-mentioned technical scheme, separately collect the categorised recovery of being convenient for, convenient and fast to impurity originally in the lubricating oil and the lubricated impurity that produces after.

The invention is further configured to: first piston and second piston lower extreme respectively fixed mounting have second electric telescopic handle, third electric telescopic handle, first electric telescopic handle and second electric telescopic handle and filter cartridge between just inlaying and being equipped with the sealing washer, the equal fixed mounting of first electric telescopic handle and second electric telescopic handle's stiff end is in the filter cartridge outside, first electric telescopic handle and second electric telescopic handle are external control ware control.

Through adopting above-mentioned technical scheme, establish the sealing performance that the sealing washer further promoted the cartridge through adding, prevent that lubricating oil from revealing.

The invention is further configured to: the first filtering device and the second filtering device are arranged in the same structure.

Through adopting above-mentioned technical scheme, the staff's operation of being convenient for when installation and dismantlement has improved work efficiency.

The use method of the pressure lubrication device of the worm gear speed reducer comprises the following steps:

s1, when the speed reducer runs, the pressure pump pumps lubricating oil in the oil storage tank, the lubricating oil passes through the first filtering device and then is pressed into the machine body;

s2, when the first piston is in a retraction state, the second piston is in an extension state, the first electric telescopic rod is in an extension state and is used for auxiliary support of the second piston, and at the moment, the lubricating oil is normally filtered by the filter element and is conveyed to the interior of the machine body;

s3, lubricating the interior of the machine body by the lubricating oil, and filtering fine impurities generated by the matching, rotating and wearing of the worm wheel and the worm in the machine body through the second filtering device in the second filtering device under the action of the oil suction pump;

s4, the filtered lubricating oil is conveyed to the oil storage tank again for circulation;

s5, when the first piston extends out, the second piston and the second electric telescopic rod retract, the communicating pipe part is communicated, lubricating oil flowing into the oil inlet hole scours the filter element at the opening, impurities accumulated on the surface of the filter element are scoured into the second cavity, and then flow into the third cavity to be discharged and collected along with the debris removal pipe;

s6, when the filter element is used for a long time, the position of the filter element can be adjusted by rotating the screw rod and the fixed rod through the hand wheel, so that the filtering part of the filter element at the opening is switched;

s7, when the filter element needs to be replaced, the pressure pump is closed, the first hand wheel is rotated to enable the screw rod to move outwards, the connecting rods are driven to move, the connecting rods are enabled to abut against the bulges, the included angle between the two connecting rods is reduced, the connecting rods drive the clamping blocks to be separated from the filter element, and the filter element is taken out by rotating the sealing cover at the moment and then replaced.

Through adopting the above-mentioned technical scheme, realized the filtration to lubricating oil and to filter equipment's self-cleaning, need not frequently to take out the filter core clearance, time saving and labor saving, the availability factor is improved, simultaneously to the filterable impurity before the lubrication and the filterable impurity after the lubrication collect with different collecting boxes, be convenient for categorised the recovery, convenient and fast, rotate lead screw and fixed rod through the hand wheel and carry out position control to the filter core, make the filter core be in the filtering part of opening part and switch, the life of filter core has been prolonged, the replacement cost has been reduceed, when the filter core needs to be changed with, close the force pump, it makes the lead screw outwards shift out to rotate first hand wheel, make connecting rod and arch offset, make the contained angle between two connecting rods diminish, make the connecting rod drive the fixture block break away from the filter core, rotatory closing cap this moment take out the filter core change can.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a first filter device according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of an embodiment A of the present invention;

FIG. 4 is a cross-sectional view of a first filter assembly A-A according to an embodiment of the present invention;

FIG. 5 is a flow chart of an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, the invention discloses a worm gear speed reducer, which comprises a machine body 1, a worm gear 2 fixedly installed inside the machine body 1, and a worm 3 penetrating through the machine body 1 and matched with the worm gear 2, wherein an oil inlet 4 is formed in the upper end of the machine body 1, an oil outlet 5 is formed in the outer side of the machine body 1, a pressure lubrication device is further fixedly installed on the machine body 1, a fixed seat 7 for rotatably sealing the worm 3 is further arranged in the machine body 1, and the pressure lubrication device comprises a first filtering device 8 arranged at the oil inlet 4, a second filtering device 9 arranged at the oil outlet, an oil storage tank 10, a pressure pump 11 arranged at the upper end of the machine body 1 and communicated with the first filtering device 8, and an oil suction pump 12 for communicating the second filtering device 9 and the.

The invention is further configured to: fixing base 7 is equipped with two, is equipped with sealed piece 13 between two fixing bases 7, and sealed piece 13 pastes tight worm 3 setting.

In the embodiment of the present invention, the first filtering device 8 includes a filtering box 81 and a filtering core 801, a first cavity 82 is formed in the filtering box 81, a second cavity 83 surrounding the first cavity 82 is formed in the filtering box 81, an opening 84 for medium to flow through is formed between the second cavity 83 and the first cavity 81, an oil inlet 85 for high pressure medium to flow into is formed in a side wall of the second cavity 83, the oil inlet 85 is communicated with the second cavity 83, the oil inlet 85 and the opening 84 are arranged at the same horizontal height, the width of the opening 84 is the same as the diameter of the oil inlet 85, a third cavity 86 for discharging chips is further formed in the filtering box 81, the third cavity 86 is communicated with the second cavity 83, a first piston 87 and a second piston 88 are respectively arranged in the first cavity 82 and the third cavity 86, the third cavity 86 is arranged in a "T" shape, a first electric telescopic rod 818 matched with the second piston 88 is embedded on a cavity wall of the third cavity 86, the movable end of the first electric telescopic rod 818 is fixedly provided with a stop block 89, the second cavity 83 is positioned in the middle of the first cavity 82, one side of the upper end edge of the first cavity 82 is fixedly connected with a communicating pipe 819 embedded in the filter box 81 and used for conveying media into the machine body 1, a chip removal pipe 802 communicated with the third cavity 86 is further embedded in the filter box 81, and a one-way valve 8190 is fixedly arranged in each of the communicating pipe 819 and the chip removal pipe 802.

Through adopting above-mentioned technical scheme, the pressure pump gets the lubricating oil in the oil storage tank through the extraction when the speed reducer moves and represses to the organism inside through first filter equipment, and when first piston for retracting the state, the second piston is for stretching out the state, and first electric telescopic handle carries out the auxiliary stay for the second piston for stretching out the state, alleviates the load of second piston, and lubricating oil is normally filtered by the filter core and is carried to the organism inside this moment, and lubricating oil is carried by normal filtration.

In the embodiment of the invention, the upper end of the first cavity 82 is provided with a convex block 14 which is convexly arranged and is integrally formed with the filter box 81, the filter box 81 is provided with a threaded through hole 141 which penetrates through the convex block 14, a screw rod 142 which is matched with the threaded through hole 141 is arranged in the threaded through hole 141, the screw rod 142 is convexly arranged and is fixedly connected with a first hand wheel 143 at the tail end of the filter box 81, the screw rod 142 is arranged in a hollow manner, the screw rod 142 is rotatably and hermetically connected with a fixed rod 144, one end of the fixed rod 144 which is positioned at the outer side of the filter box 81 is fixedly connected with a second hand wheel 145, one end of the fixed rod 144 which is positioned in the filter box 81 is fixedly connected with a fixed block 146, the fixed block 146 is hinged on the fixed block 146, two connecting rods 147 are arranged, one end of the connecting rod 147 which is far away from the fixed, the springs 1402 are welded between the two clamping blocks 148, the second annular groove 1403 penetrates through the filter box 81 downwards along the length direction of the first cavity 82, a thread is arranged at a groove at the lower end of the second annular groove 1403, a sealing cover 1404 matched with the second annular groove 1403 is arranged outside the filter box 81, a protrusion 1405 integrated with the filter box 81 is arranged between the convex block 14 and the filter element 801, and the lower end face of the protrusion 1405 is obliquely arranged.

In the embodiment of the invention, a first collecting box 15 and a second collecting box 16 are respectively fixedly arranged outside the first filtering device 8 and the second filtering device 9.

In the embodiment of the present invention, the lower ends of the first piston 87 and the second piston 88 are respectively fixedly mounted with the second electric telescopic rod 17 and the third electric telescopic rod 18, the sealing rings 18 are embedded between the first electric telescopic rod 88 and the second electric telescopic rod 17 and the filter cartridge 81, the fixed ends of the first electric telescopic rod 88 and the second electric telescopic rod 17 are both fixedly mounted on the outer side of the filter cartridge 81, and the first electric telescopic rod 88 and the second electric telescopic rod 17 are both controlled by an external controller.

In the embodiment of the invention, the first filter device 8 and the second filter device 9 are arranged in the same structure.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a worm gear speed reducer, includes organism (1), fixed mounting in inside worm wheel (2) of organism (1) and runs through organism (1) and worm wheel (2) matched with worm (3), its characterized in that: oil inlet (4) have been seted up to organism (1) upper end, oil-out (5) have been seted up in organism (1) outside, it has pressure lubrication device still to fix a mounting on organism (1), still be equipped with fixing base (7) that are used for rotary seal worm (3) in organism (1), pressure lubrication device is including setting up first filter equipment (8) at oil inlet (4), set up second filter equipment (9) at the oil-out, batch oil tank (10), set up in organism (1) upper end and pressure pump (11) of first filter equipment (8) intercommunication, be used for communicateing oil suction pump (12) of second filter equipment (9) and batch oil tank (10).

2. The worm-gear reducer according to claim 1, wherein: the number of the fixing seats (7) is two, a sealing block (13) is arranged between the two fixing seats (7), and the sealing block (13) is arranged close to the worm (3).

3. The worm-gear reducer according to claim 1, wherein: the first filtering device (8) comprises a filtering box (81) and a filtering core (801), a first cavity (82) is formed in the filtering box (81), a second cavity (83) which is arranged around the first cavity (82) is arranged in the filtering box (81), an opening (84) for medium circulation is formed between the second cavity (83) and the first cavity (81), an oil inlet (85) for high-pressure medium to flow into is formed in the side wall of the second cavity (83), the oil inlet (85) is communicated with the second cavity (83), the oil inlet (85) and the opening (84) are arranged at the same horizontal height, the width of the opening (84) is the same as the diameter of the oil inlet (85), a third cavity (86) for chip removal is further formed in the filtering box (81), the third cavity (86) is communicated with the second cavity (83), a first piston (87) and a second piston (88) are respectively arranged in the first cavity (82) and the third cavity (86), third cavity (86) "T" font sets up, inlay on the chamber wall of third cavity (86) and be equipped with first electric telescopic handle (818) with second piston (88) matched with, the expansion end fixed mounting of first electric telescopic handle (818) has dog (89), second cavity (83) are located the middle part of first cavity (82), first cavity (82) upper end edge one side fixedly connected with inlays and establishes in filter box (81) and be used for communicating pipe (819) in medium transport to organism (1), still inlay in filter box (81) and be equipped with chip removal pipe (802) that communicate with third cavity (86), equal fixed mounting has check valve (8190) in communicating pipe (819) and chip removal pipe (802).

4. A worm gear reducer as claimed in claim 3, wherein: a convex block (14) which is arranged in a protruding manner and is integrally formed with the filter box (81) is arranged at the upper end of the first cavity (82), a thread through hole (141) which penetrates through the convex block (14) is formed in the filter box (81), a screw rod (142) which is matched with the thread through hole (141) is arranged in the thread through hole (141), a first hand wheel (143) is arranged in a protruding manner and is fixedly connected with the tail end of the screw rod (142), the screw rod (142) is arranged in a hollow manner, a fixing rod (144) is connected in a rotating and sealing manner in the screw rod (142), a second hand wheel (145) is fixedly connected with one end, which is positioned at the outer side of the filter box (81), of the fixing rod (144) is fixedly connected with a fixing block (146), two connecting rods (147) are hinged on the fixing block (146), a clamping block (148) is hinged at one end, which is far away from the fixing block (146), of each connecting, first annular groove (1401) and second annular groove (1403) with filter core (801) matched with have been seted up respectively to both ends about first cavity (82), the welding has spring (1402) between two fixture blocks (148), second annular groove (1403) are followed the length direction of first cavity (82) and are run through downwards and strain box (81) and set up, second annular groove (1403) lower extreme notch department is equipped with the screw thread, strain box (81) be equipped with outward with second annular groove (1403) matched with closing cap (1404), be equipped with between lug (14) and filter core (801) and strain protruding (1405) of box (81) integrated into one piece, the lower terminal surface slope of protruding (1405) sets up.

5. The worm-gear reducer according to claim 4, wherein: the outer sides of the first filtering device (8) and the second filtering device (9) are respectively and fixedly provided with a first collecting box (15) and a second collecting box (16).

6. A worm gear reducer as claimed in claim 3, wherein: first piston (87) and second piston (88) lower extreme respectively fixed mounting have second electric telescopic handle (17), third electric telescopic handle (18), first electric telescopic handle (818) and second electric telescopic handle (17) and strain between box just (81) and inlay and be equipped with sealing washer (18), the equal fixed mounting in the filter box (81) outside of stiff end of first electric telescopic handle (88) and second electric telescopic handle (17), first electric telescopic handle (818) and second electric telescopic handle (17) are external control ware control.

7. The worm-gear reducer according to claim 1, wherein: the first filtering device (8) and the second filtering device (9) are arranged in the same structure.

8. A worm gear reducer and an oil filtering method thereof as claimed in any one of claims 1 to 7, characterized in that: the method comprises the following steps: