Automatic lubrication system for excavator

Abstract

The present invention discloses an automatic lubrication system for an excavator, comprising: a control module, a lubrication pump, an oiler assembly and a front guard plate. The control module is electrically connected to the lubrication pump; the oiler assembly comprises a first oiler group and a second oiler group, and the first oiler group and the second oiler group are respectively installed on the front and rear sides of the excavator connecting rod; the front guard plate is fixedly connected to the bucket and is located in front of the connecting rod. By respectively arranging the first oiler group and the second oiler group on the front and rear sides of the excavator connecting rod, the influence of the vibration of the whole machine on the oiler group can be effectively reduced. At the same time, it can also facilitate the connection of the lubrication pipe with the corresponding lubrication point nearby, significantly reducing the connection difficulty and shortening the connection distance; by arranging the front guard plate on the bucket, foreign objects such as sand, dust, and stones can be effectively blocked to prevent foreign objects from damaging the oiler group on the connecting rod, effectively ensuring the stable operation of the lubrication system.

Description

Technical Field

[0001] The present invention relates to the technical field of excavators, and in particular to an automatic lubrication system for excavators. Background Art

[0002] Excavators (excavators for short) are common engineering vehicles that are widely used in infrastructure construction and play a very important role. The bucket, which is the main working structure of the excavator, plays a decisive role in the performance of the entire excavator due to its reliability and stability. The bucket of the excavator is hinged at the front end of the digging arm, and a connecting rod is also hinged on the bucket. The other end of the connecting rod is hinged to the oil cylinder through a hinge shaft. When the oil cylinder is extended and retracted, the bucket swings relative to the digging arm to achieve the action of shoveling and pouring materials. Since the working environment of the hinged parts at both ends of the connecting rod is relatively harsh, they are subjected to greater force during the working process, and it is often necessary to shake the bucket to completely pour out the material in the bucket. Therefore, it is often necessary to configure a lubrication system to lubricate this part to ensure the flexible and smooth movement of the bucket.

[0003] At present, most excavators do not have automatic lubrication systems on their buckets and connecting rods. Most of them use manual grease guns to add grease. This method not only has a slow filling speed, which slows down the construction speed, but is also prone to excessive wear due to untimely filling. In addition, it also increases the labor intensity of workers.

[0004] Some excavators with automatic lubrication systems do not have protective devices installed at the installation site of the automatic lubrication systems. When the excavator is working, there is a lot of gravel in the excavator bucket and there will be large vibrations. Therefore, the automatic lubrication system without protective devices is easily affected by the gravel and vibrations. Summary of the invention

[0005] In view of this, the present invention provides an automatic lubrication system for an excavator, which can lubricate the hinge point between a bucket and a connecting rod and has a protective device.

[0006] To achieve the above object, the present invention provides the following technical solutions: An automatic lubrication system for an excavator comprises a control module, a lubrication pump, an oiler assembly and a front guard plate.

[0007] Among them, the control module is electrically connected to the lubrication pump; the oiler assembly includes a first oiler group and a second oiler group, the first oiler group and the second oiler group are respectively installed on the front and rear sides of the excavator connecting rod, the lubrication pump is connected to the second oiler group through a first main line, and the second oiler group is connected to the first oiler group through a second main line, wherein the first oiler group is used to lubricate the connecting rod hinge point, and the second oiler group is used to lubricate the bucket hinge point and the bucket cylinder hinge point; the front guard plate is fixedly connected to the bucket and is located in front of the connecting rod.

[0008] Preferably, the second lubricator group includes a second mounting seat, a second lubricator and a third lubricator, at least one of the second lubricator and the third lubricator is provided, the second lubricator and the third lubricator are installed side by side on the second mounting seat, the second lubricator is connected to the bucket hinge point, and the third lubricator is lubricated with the bucket cylinder hinge point.

[0009] Preferably, the bucket hinge point is provided at the front end and the rear end of the bucket ear plate, and the front end of the bucket ear plate is also provided with a pipeline through hole, and two bucket hinge point lubrication pipes pass through the pipeline through hole from the inner side of the bucket ear plate, one of the bucket hinge point lubrication pipes is connected to the bucket hinge point at the front end of the bucket ear plate, and the other bucket hinge point lubrication pipe is connected to the bucket hinge point at the rear end of the bucket ear plate.

[0010] Preferably, a side guard plate is provided on the outer side of the middle portion of the bucket ear plate, and the bucket hinge lubrication pipe passes through the inner side of the side guard plate.

[0011] Preferably, a protective plate mounting block is provided on the inner side of the ear plate, and the protective plate mounting block is arranged close to the pipeline through-hole, and the two bucket hinge lubrication pipes are fixed to the protective plate mounting block through the same clamp; the front protective plate is fixedly connected to the front end surface of the protective plate mounting block, and the upper side of the front protective plate is provided with a short bent plate bent toward the rear side.

[0012] Preferably, a protective flange is provided at each bucket hinge point, an avoidance gap is provided on the protective flange, and a lubrication pipe at each bucket hinge point passes through the avoidance gap.

[0013] Preferably, the first oiler group includes a first mounting seat and a first oiler, at least one first oiler is provided, the first oiler is mounted on the first mounting seat, the first oiler is connected to the connecting rod hinge, the first mounting seat and the second mounting seat are respectively provided with a first oil passage and a second oil passage in the axial direction, the lubrication pump is connected to one end of the second oil passage through the first main line, the other end of the second oil passage is connected to one end of the first oil passage through the second main line, and the other end of the first oil passage is closed.

[0014] Preferably, a first wire-passing channel is provided on the connecting rod, the second main pipeline passes through the first wire-passing channel and is connected to the first oil-passing channel, and the bucket cylinder lubrication pipe passes through the first wire-passing channel and is connected to the lubrication point on the bucket cylinder.

[0015] Preferably, a second wire-passing channel is further provided on the connecting rod, and the first main pipeline can also pass through the second wire-passing channel to be connected to the first oil-passing channel.

[0016] Preferably, a protective ring is provided at the connecting rod hinge, an avoidance notch is provided on the protective ring, and the connecting rod hinge lubrication pipe is connected to the connecting rod hinge through the avoidance notch.

[0017] Preferably, a through-notch is provided at the lower edge of the front protective plate.

[0018] Preferably, the automatic lubrication system for the excavator also includes a connecting rod protection plate, and two connecting rod protection plates are provided. The two connecting rod protection plates are respectively covered on the front and rear sides of the connecting rod, and the first oiler group and the second oiler group are both located within the covering range of the connecting rod protection plate.

[0019] Compared with the prior art, the present application discloses an automatic lubrication system for an excavator, which can effectively reduce the impact of the vibration of the whole machine on the oiler group by respectively arranging a first oiler group and a second oiler group on the front and rear sides of the excavator connecting rod, and at the same time, can also facilitate the connection of the lubrication pipe with the corresponding lubrication point nearby, significantly reducing the connection difficulty and shortening the connection distance; by arranging a front protective plate on the bucket, it can effectively block foreign objects such as sand, dust, and stones, prevent foreign objects from damaging the oiler group on the connecting rod, and effectively ensure the stable operation of the lubrication system.

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

[0021] Figure 1 is a schematic diagram of an automatic lubrication system for an excavator disclosed in an embodiment of the present application; Figure 2 It is a first posture assembly diagram of the automatic lubrication system for excavators (with a protective plate) disclosed in the embodiment of the present application; Figure 3 It is a first posture assembly diagram of the automatic lubrication system for excavators (without a protective plate) disclosed in the embodiment of the present application; Figure 4 is a front view of the automatic lubrication system for an excavator (with a protective plate) disclosed in an embodiment of the present application in a first posture; Figure 5 yes Figure 4 Sectional view along line AA; Figure 6 yes Figure 5 Enlarged view of the middle C area; Figure 7 It is a second posture assembly diagram of the automatic lubrication system for excavators (with a protective plate) disclosed in the embodiment of the present application; Figure 8It is a second posture assembly diagram of the automatic lubrication system for excavators (without a protective plate) disclosed in the embodiment of the present application; Fig. 9 is a front view of the automatic lubrication system for an excavator (with a protective plate) disclosed in an embodiment of the present application in a second posture; Fig.10 yes Fig. 9 Sectional view along the midline BB; Fig.11 is a front view of a connecting rod of an automatic lubrication system for an excavator disclosed in an embodiment of the present application; Fig.12 is a side view of a connecting rod of an automatic lubrication system for an excavator disclosed in an embodiment of the present application; Fig.13 is a schematic structural diagram of a bucket of an automatic lubrication system for an excavator disclosed in an embodiment of the present application; Fig.14 is a front view of a first oiler of an automatic lubrication system for an excavator disclosed in an embodiment of the present application; Fig.15 is a side view of a first oiler of an automatic lubrication system for an excavator disclosed in an embodiment of the present application; Fig.16 is a front view of a second oiler of the automatic lubrication system for an excavator disclosed in an embodiment of the present application; Fig.17 It is a side view of a second oiler of the automatic lubrication system for an excavator disclosed in an embodiment of the present application.

[0022] Reference numerals: 1. Oiler assembly; 11. First oiler group; 12. Second oiler group; 111. First mounting seat; 112. First oiler; 113. Lubrication pipe at connecting rod hinge point; 121. Second mounting seat; 122. Second oiler; 123. Third oiler; 124. Lubrication pipe at bucket hinge point; 125. Lubrication pipe at bucket cylinder; 2. Front protection plate; 21. Short bending plate; 22. Through the gap; 3. Connecting rod protection plate; 4. Bucket; 41. Bucket hinge; 42. Bucket ear plate; 411. Protective flange; 421. Pipeline through hole; 422. Side protective plate; 423. Protective plate mounting block; 4231. Clamp; 5. Connecting rod; 51. Connecting rod hinge; 52. First wire-passing channel; 53. Second wire-passing channel; 54. Protective ring; 6. Bucket cylinder; 61. Bucket cylinder hinge point; 7. First main line; 8. Second main line; 9. Control module; 10. Lubrication pump; 20. Arm; 30. Rocker. DETAILED DESCRIPTION

[0023] The invention discloses an automatic lubrication system for an excavator, which can lubricate the hinge point between a bucket 4 and a connecting rod 5 and has a protective device.

[0024] Embodiments of the present invention are described in detail below, examples of which 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 intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] Reference below Figures 1 to 17 An automatic lubrication system for an excavator in an embodiment of the present invention is described.

[0027] An embodiment of the present application discloses an automatic lubrication system for an excavator, comprising: a control module 9 , a lubrication pump 10 , an oiler assembly 1 and a front guard plate 2 .

[0028] The control module 9 is electrically connected to the lubrication pump 10, and the control module 9 can control the operation of the lubrication pump 10 so that the lubrication pump 10 can deliver lubrication medium to the points that need lubrication according to actual conditions; The oiler assembly 1 includes a first oiler group 11 and a second oiler group 12, which are respectively installed on the front and rear sides of the excavator connecting rod 5, and the lubricating pump 10 is connected to the second oiler group 12 through the first main line 7, and the second oiler group 12 is connected to the first oiler group 11 through the second main line 8, wherein the first oiler group 11 is used to lubricate the connecting rod hinge 51, and the second oiler group 12 is used to lubricate the bucket hinge 41 and the bucket cylinder hinge; when the lubrication system is running, the lubricating medium pumped out by the lubrication pump 10 will first enter The second lubricator group 12, and then enters the first lubricator group 11 from the second lubricator group 12. By setting up two lubricator groups, the connecting rod hinge point 51, the bucket hinge point 41 and the bucket cylinder hinge point are lubricated respectively. On the one hand, during the operation of the excavator, the connecting rod 5 is subjected to a lower degree of vibration than the bucket 4. Therefore, the first lubricator group 11 and the second lubricator group 12 installed on the connecting rod 5 are less affected by vibration and will not be damaged by vibration. On the other hand, it is convenient to connect the lubrication pipe to the corresponding lubrication point nearby, which significantly reduces the connection difficulty and shortens the connection distance.

[0029] For example Figure 5 As shown, the first main conduit 7 fixed on the boom 20 is directly connected to the opposite second oiler group 12. When the bucket cylinder contracts, the first main conduit 7 is naturally bent into an S shape and is located between the boom 20 and the connecting rod 5, and will not arch upward. In this way, not only the overall aesthetics of the excavator can be improved, but also the safety of the first main conduit 7 can be effectively protected; when the bucket cylinder is extended, the first main conduit 7 is stretched from the S shape to a straight line and naturally fits the surface of the boom 20. In this way, the first main conduit 7 is effectively reduced in the process of being stretched and contracted. The scratches between the adjacent components are effectively reduced, the wear of the first main conduit 7 is effectively reduced, and the service life of the first main conduit 7 is extended.

[0030] Furthermore, since the second oiler group 12 is arranged adjacent to the first oiler group 11 and the distance between them is relatively short, the overall length of the second main pipeline 8 used to connect the two is also relatively short, and when the bucket cylinder is extended or retracted, there is less scratching between it and the connected parts. This not only reduces the wear of the second main pipeline 8, but also effectively solves the problem of the current excavator lubrication pipe being too long.

[0031] The front guard plate 2 is fixedly connected to the bucket 4 and is located in front of the connecting rod 5, for example Figure 2 As shown, the front guard plate 2 is arranged between the two ear plates on the bucket 4 and is located on the front side of the connecting rod 5. When the excavator is working, the front guard plate 2 can effectively block foreign objects such as sand, dust, and stones to prevent foreign objects from damaging the oiler group on the connecting rod 5, thereby effectively ensuring the stable operation of the lubrication system.

[0032] Furthermore, a through notch 22 is provided at the lower edge of the front guard plate 2; after the excavator has been working for a long time, sand and gravel are easily accumulated on the bucket 4, and the accumulated sand and gravel can easily cause damage to the connecting rod 5 and the oiler group on the connecting rod 5 during the movement of the bucket 4. Therefore, by providing a through notch 22 at the lower edge of the front guard plate 2, the accumulated sand and gravel can flow out through the notch 22 to prevent sand and gravel accumulation.

[0033] In some embodiments, the second lubricator group 12 includes a second mounting seat 121, a second lubricator 122 and a third lubricator 123, and at least one second lubricator 122 and the third lubricator 123 are provided. The second lubricator 122 and the third lubricator 123 are installed side by side on the second mounting seat 121, the second lubricator 122 is connected to the bucket hinge point 41, and the third lubricator 123 is lubricated with the bucket cylinder hinge point.

[0034] For example Fig.16As shown, four second lubricators 122 are provided, and the four second lubricators 122 lubricate the four bucket hinges 41 on the bucket 4 respectively, which can improve the quality of lubrication and make the lubrication degree more balanced; one third lubricator 123 is provided, and the third lubricator 123 is arranged between the four second lubricators 122. The third lubricator 123 is longer than the second lubricator 122, so that the third lubricator 123 can be conveniently connected to the bucket cylinder hinge located on the upper side of the connecting rod 5.

[0035] In some embodiments, bucket hinges 41 are provided at the front and rear ends of the bucket ear plate 42, and a pipeline through hole 421 is also provided at the front end of the bucket ear plate 42. Two bucket hinge lubrication pipes 124 pass through the pipeline through hole 421 from the inner side of the bucket ear plate 42, one bucket hinge lubrication pipe 124 is connected to the bucket hinge 41 at the front end of the bucket ear plate 42, and the other bucket hinge lubrication pipe 124 is connected to the bucket hinge 41 at the rear end of the bucket ear plate 42. The provision of the pipeline through hole 421 can facilitate the routing of the bucket hinge lubrication pipe 124, and effectively reduce the difficulty of arranging the bucket hinge lubrication pipe 124; for example Fig.13 As shown, the pipeline through hole 421 is located at the rear side of the front protective plate 2 , and the bucket hinge point lubrication pipe 124 passing through the pipeline through hole 421 can be protected by the front protective plate 2 .

[0036] In some embodiments, a side guard plate 422 is disposed on the outer side of the middle portion of the bucket ear plate 42, and the bucket hinge lubrication pipe 124 passes through the inner side of the side guard plate 422. Figure 3 As shown, after the bucket hinge lubrication tube 124 passes through the pipeline through hole 421, one path is connected to the nearest bucket hinge 41, and the other path needs to continue to extend backward to the bucket hinge 41 at the rear end of the ear plate. When arranging the wiring, the bucket hinge lubrication tube 124 is made close to the outer wall of the ear plate, which can shorten the connection distance. At the same time, the bucket hinge lubrication tube 124 passes through the inner side of the side guard plate 422, which not only effectively protects the bucket hinge lubrication tube 124, but also the side guard plate 422 can limit the lateral displacement of the bucket hinge lubrication tube 124, preventing the bucket hinge lubrication tube 124 from arching outward.

[0037] Furthermore, when the bucket cylinder is extended, the bucket hinge lubrication tube 124 will be transformed from along the arc surface of the connecting rod 5 to along the curved plate of the bucket 4, and during the full stroke of the bucket cylinder, the posture transformation process of the bucket hinge lubrication tube 124 does not contact with sharp points, which can effectively ensure the safety of the bucket hinge lubrication tube 124.

[0038] In some embodiments, a guard plate mounting block 423 is provided on the inner side of the ear plate, and the guard plate mounting block 423 is arranged close to the pipeline through hole 421, and the two-way bucket hinge lubrication pipe 124 is fixed on the guard plate mounting block 423 through the same clamp 4231; when the bucket cylinder is extended and retracted, the bucket 4 will move relative to the connecting rod 5, at this time, the bucket hinge lubrication pipe 124 arranged from the connecting rod 5 to the bucket 4 will move relative to each other to a certain extent due to the movement of the bucket 4, so that the bucket hinge lubrication pipe 124 is prone to friction and collision with adjacent components and is easily damaged; for example Figure 3 and Figure 6 As shown, by setting a protective plate mounting block 423 on the inner side of the bucket ear plate 42 near the pipeline through hole 421, and fixing the bucket hinge point lubrication tube 124 on the protective plate mounting block 423 by a clamp 4231, the relative movement of the bucket hinge point lubrication tube 124 can be effectively restricted, especially the part of the bucket hinge point lubrication tube 124 passing through the pipeline through hole 421 and the bucket 4 has no relative movement, which can significantly reduce the wear of the bucket hinge point lubrication tube 124 and extend its service life.

[0039] Furthermore, the front guard plate 2 is fixedly connected to the front end surface of the guard plate mounting block 423, and a short bending plate 21 bent toward the rear side is provided on the upper side of the front guard plate 2; for example Figure 3 and Figure 6 As shown, the inner sides of the two ear plates on the bucket 4 are provided with guard plate mounting blocks 423, and the front side surface and the upper top surface of each guard plate mounting block 423 are provided with bolt holes for mounting and fixing the front guard plate 2, and the front guard plate 2 is bolted to the guard plate mounting blocks 423. The short bent plate 21 provided on the front guard plate 2 can effectively protect the bucket hinge lubrication tube 124 from damage on the one hand, and can effectively avoid the bucket hinge lubrication tube 124 fixed on the guard plate mounting block 423 to prevent interference therewith on the other hand.

[0040] In some embodiments, each bucket hinge 41 is provided with a protective flange 411, and a relief notch is provided on the protective flange 411, and each bucket hinge lubrication pipe 124 passes through the relief notch. Figure 3 and Fig.13 As shown, a circle of protective plates are arranged on the circumference of the protective flange 411, and an avoidance gap is opened on the protective plate for the bucket hinge lubrication tube 124 to pass through. The bucket hinge lubrication tube 124 is connected to the bucket hinge 41 after passing through the avoidance gap. The setting of the protective flange 411 can effectively protect the connection point between the bucket hinge lubrication tube 124 and the bucket hinge 41. At the same time, the avoidance gap can also play a certain limiting role on the bucket hinge lubrication tube 124, which can prevent the bucket hinge lubrication tube 124 from shaking too much, thereby causing connection failure.

[0041] In some embodiments, the first oiler group 11 includes a first mounting seat 111 and a first oiler 112, at least one first oiler 112 is provided, the first oiler 112 is installed on the first mounting seat 111, the first oiler 112 is connected to the connecting rod hinge 51, the first mounting seat 111 and the second mounting seat 121 are axially provided with a first oil passage and a second oil passage, respectively, the lubrication pump 10 is connected to one end of the second oil passage through the first main line 7, the other end of the second oil passage is connected to one end of the first oil passage through the second main line 8, and the other end of the first oil passage is closed. For example Fig.14 As shown, four first oilers 112 are provided, and the four oilers lubricate the four connecting rod hinge points 51 on the connecting rod 5 respectively, which can improve the quality of lubrication and make the lubrication degree more balanced.

[0042] In this embodiment, the connecting rod 5 is provided with a first wire-passing channel 52, the second main line 8 passes through the first wire-passing channel 52 and is connected to the first oil-passing channel, and the bucket cylinder lubrication pipe 125 passes through the first wire-passing channel 52 and is connected to the lubrication point on the bucket cylinder. Figure 3 , Figure 5 and Fig.11 As shown, the opening position of the first wire-passing channel 52 is higher than the installation position of the oiler group. After the second main line 8 passes through the first wire-passing channel 52 upward from the second oiler group 12, it is downwardly connected to the first oiler group 11, and the whole is arched and short in length. After the bucket cylinder lubrication pipe 125 passes through the first wire-passing channel 52 upward from the second oiler 122, it continues upward to be connected to the bucket cylinder hinge point, and the whole is S-shaped; the setting of the first wire-passing channel 52 not only facilitates the routing arrangement of the second main line 8 and the bucket cylinder lubrication pipe 125, making the routing arrangement of the whole machine more compact and beautiful, but also ensures that the second main line 8 and the bucket cylinder lubrication pipe 125 will not be affected by the movement of the connecting rod 5, and will not rub or collide with adjacent components.

[0043] Furthermore, for example Fig.11 As shown, a second wire-passing channel 53 is also provided on the connecting rod 5, and the first main pipeline 7 can also pass through the second wire-passing channel 53 to be connected to the first oil-passing channel. The first main pipeline 7 can select a corresponding wire-passing channel for arrangement according to actual conditions.

[0044] In some embodiments, a protective ring 54 is provided at the connecting rod hinge 51, and an avoidance gap is provided on the protective ring 54. The connecting rod hinge lubrication tube 113 is connected to the connecting rod hinge 51 through the avoidance gap. Figure 4 and Fig.11As shown, four connecting rod hinges 51 are arranged on the connecting rod 5, and a protective ring 54 is arranged at each connecting rod hinge 51. Each protective ring 54 is arranged with an avoidance gap. The connecting rod hinge lubrication tube 113 is connected to the connecting rod hinge 51 through the avoidance gap. The setting of the protective ring 54 can effectively protect the connection point between the connecting rod hinge lubrication tube 113 and the connecting rod hinge 51. At the same time, the avoidance gap can also play a certain limiting role on the connecting rod hinge lubrication tube 113, which can prevent the connecting rod hinge lubrication tube 113 from shaking too much, thereby causing connection failure.

[0045] In some embodiments, for example Figure 2 As shown, the automatic lubrication system for the excavator also includes a connecting rod protection plate 3, two connecting rod protection plates 3 are provided, and the two connecting rod protection plates 3 are respectively covered on the front and rear sides of the connecting rod 5, and the first oiler group 11 and the second oiler group 12 are both located within the covering range of the connecting rod protection plate 3. The connecting rod protection plate 3 can not only effectively protect the connecting rod 5, but also effectively protect the oiler assembly 1.

[0046] Other structures and operations of the automatic lubrication system for an excavator according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0047] 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 present invention. 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 the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0048] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An automatic lubrication system for an excavator, characterized in that: include: control module, lubrication pump, oiler assembly and front fender; The control module is electrically connected to the lubrication pump; The lubricator assembly includes a first lubricator group and a second lubricator group, the first lubricator group and the second lubricator group are respectively installed on the front and rear sides of the excavator connecting rod, the lubricating pump is connected to the second lubricator group through a first main pipeline, and the second lubricator group is connected to the first lubricator group through a second main pipeline, wherein the first lubricator group is used to lubricate the connecting rod hinge point, and the second lubricator group is used to lubricate the bucket hinge point and the bucket cylinder hinge point; The front guard plate is fixedly connected to the bucket and is located in front of the connecting rod.

2. The automatic lubrication system for an excavator according to claim 1, characterized in that: The second lubricator group includes a second mounting seat, a second lubricator and a third lubricator. The second lubricator and the third lubricator are each provided with at least one. The second lubricator and the third lubricator are installed side by side on the second mounting seat. The second lubricator is connected to the bucket hinge point, and the third lubricator is lubricated with the bucket cylinder hinge point.

3. The automatic lubrication system for an excavator according to claim 2, characterized in that: The bucket hinge point is provided at the front end and the rear end of the bucket ear plate. The front end of the bucket ear plate is also provided with a pipeline through hole. Two bucket hinge point lubrication pipes pass through the pipeline through hole from the inner side of the bucket ear plate. One bucket hinge point lubrication pipe is connected to the bucket hinge point at the front end of the bucket ear plate, and the other bucket hinge point lubrication pipe is connected to the bucket hinge point at the rear end of the bucket ear plate.

4. The automatic lubrication system for an excavator according to claim 3, characterized in that: A side guard plate is arranged on the outer side of the middle part of the bucket ear plate, and the bucket hinge lubrication pipe passes through the inner side of the side guard plate.

5. The automatic lubrication system for an excavator according to claim 3, characterized in that: A protective plate mounting block is provided on the inner side of the ear plate, the protective plate mounting block is arranged close to the pipeline through hole, and the two bucket hinge lubrication pipes are fixed to the protective plate mounting block through the same clamp; The front protective plate is fixedly connected to the front end surface of the protective plate mounting block, and a short bent plate bent toward the rear side is arranged on the upper side of the front protective plate.

6. The automatic lubrication system for an excavator according to claim 3, characterized in that: A protective flange is provided at each bucket hinge point, an avoidance gap is provided on the protective flange, and a lubrication pipe at each bucket hinge point passes through the avoidance gap.

7. The automatic lubrication system for an excavator according to claim 2, characterized in that: The first oiler group includes a first mounting seat and a first oiler, at least one of the first oilers is provided, the first oiler is installed on the first mounting seat, the first oiler is connected to the connecting rod hinge, the first mounting seat and the second mounting seat are respectively provided with a first oil passage and a second oil passage in the axial direction, the lubrication pump is connected to one end of the second oil passage through the first main line, the other end of the second oil passage is connected to one end of the first oil passage through the second main line, and the other end of the first oil passage is closed.

8. The automatic lubrication system for an excavator according to claim 7, characterized in that: The connecting rod is provided with a first wire-passing channel, the second main pipeline passes through the first wire-passing channel and is connected to the first oil-passing channel, and the bucket cylinder lubrication pipe passes through the first wire-passing channel and is connected to the lubrication point on the bucket cylinder.

9. The automatic lubrication system for an excavator according to claim 7 or 8, characterized in that: The connecting rod is also provided with a second wire-passing channel, and the first main pipeline can also pass through the second wire-passing channel to be connected with the first oil-passing channel.

10. The automatic lubrication system for an excavator according to claim 7, characterized in that: A protective ring is arranged at the connecting rod hinge point, an avoidance notch is arranged on the protective ring, and a connecting rod hinge point lubrication pipe is connected to the connecting rod hinge point through the avoidance notch.

11. The automatic lubrication system for an excavator according to claim 1, characterized in that: A passing notch is provided at the lower edge of the front protective plate.

12. The automatic lubrication system for an excavator according to claim 1, characterized in that: It also includes a connecting rod protection plate, wherein two connecting rod protection plates are provided, and the two connecting rod protection plates are respectively covered on the front and rear sides of the connecting rod, and the first oiler group and the second oiler group are both located within the covering range of the connecting rod protection plates.

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