Loader with shovel teeth convenient to replace

Abstract

The utility model relates to the technical field of engineering construction, in particular to a loader convenient to replace shovel teeth, which comprises a loading vehicle, a shovel bucket and a power arm component used for controlling the action of the shovel bucket are arranged at the head of the loading vehicle, a plurality of positioning teeth and a plurality of shovel teeth are arranged at the front end of the shovel bucket in an array mode, and the shovel teeth are sleeved on the outer sides of the positioning teeth. The front end of the bucket is provided with a bolt fixing piece used for fixing the bucket teeth, the front end of the bucket is provided with a gland, the gland covers the outer side of the bolt fixing piece, one end of the gland is rotationally connected to the upper ends of the bucket teeth through a rotating pin, and the side edge of the bucket is provided with a bolt positioning piece. When the loading vehicle loads construction waste, the bucket can shovel up the waste through the shovel teeth at the front end of the bucket, the gland is closed to the upper ends of the shovel teeth, the bolt positioning piece locks the gland from the side edge of the bucket, and the gland covering the outer side of the bolt fixing piece can protect the bolt fixing piece so as to facilitate disassembly and assembly of the shovel teeth.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction, in particular to a loader which is convenient for replacing shovel teeth. Background Art

[0002] With the rapid development of road and bridge construction in my country, highways of various grades are intertwined with each other, and the number of intersections between lines is increasing. For these intersections, cross-line bridge structures are usually used to deal with them. With the rapid economic development and the increasing traffic volume in recent years, the original lines have been unable to meet the existing traffic capacity requirements, and the urgent need to upgrade and renovate some high-level highways and local roads has become increasingly prominent. With the reconstruction and expansion of the original roads, especially the reconstruction and expansion of expressways, the number of lanes has increased significantly, and the reconstruction and expansion width is large. The bridge interchanges above the lines also need to be demolished and rebuilt. Loaders are needed to load the construction materials during the demolition and reconstruction.

[0003] A loader is a loading vehicle. The front of the loader is equipped with a bucket and a power arm assembly for controlling the movement of the bucket. For example, Chinese patent application number CN201510328319.1 discloses a bucket comprising a bucket main plate, bucket teeth, and tooth pins. The bucket main plate is connected to a tooth holder body. The front of the tooth holder body is provided with a forward-projecting support head. The tooth holder body at the rear of the support head is provided with a connecting through-hole. The bucket teeth are mounted on the support head and fixedly connected to the tooth holder body via a tooth pin passing through the connecting through-hole. This bucket can solve the problem of bucket teeth being easily broken by impact when shoveling materials in an excavator. The bucket teeth are fixed to the tooth holder body by pin connection, which makes it easier for operators to replace the bucket teeth. However, when a loader is loading construction waste, the bucket and the teeth at its front end will come into direct contact with the waste. Therefore, in addition to the wear of the teeth, the pins at the front end of the bucket used to fix the teeth will also wear and deform. When the pins are deformed, the teeth will often be locked at the front end of the bucket and difficult to remove, affecting the use of the bucket. Utility Model Content

[0004] In response to the above problems, the utility model proposes a loader that is easy to replace the bucket teeth, so as to solve the problem that when the current loader is loading construction waste, the pins at the front end of the bucket used to fix the bucket teeth will also wear and deform. When the pins are deformed, the bucket teeth are often locked at the front end of the bucket and are difficult to remove, affecting the use of the bucket.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a loader that is convenient for replacing shovel teeth, comprising a loading vehicle, wherein a bucket and a power arm assembly for controlling the movement of the bucket are provided at the front of the loading vehicle;

[0006] The front end array of the bucket is provided with a plurality of positioning teeth and a plurality of shovel teeth. The positioning teeth are fixedly connected to the bucket. The shovel tooth sleeve is arranged on the outside of the positioning teeth. The front end of the bucket is provided with a bolt fixing member for fixing the shovel teeth.

[0007] The front end of the bucket is provided with a pressure cover, which is arranged on the outside of the bolt fixing piece. One end of the pressure cover is rotatably connected to the upper end of the shovel tooth through a rotating pin. The side of the bucket is provided with a bolt positioning piece for fixing the pressure cover arranged on the outside of the bolt fixing piece.

[0008] A further improvement is that a groove is provided on the side of the shovel tooth facing the bucket, the front end of the bucket is inserted into the groove, and the groove is movably matched with the bucket.

[0009] A further improvement is that: a positioning groove is opened in the groove, the positioning tooth is inserted into the positioning groove, and the positioning tooth and the positioning groove are movably matched.

[0010] A further improvement is that: the front end of the shovel tooth is provided with an inclined surface, the inclined surface is provided with two ridges, the ridges are fixedly connected to the shovel tooth, and a gap is left between the two ridges.

[0011] A further improvement is that the bolt fixing part includes bolt holes opened at the upper and lower ends of the shovel teeth, the bolt holes are connected to the grooves, a fixing bolt is installed in the bolt hole, the fixing bolt is threadedly connected to the bolt hole, and a threaded hole is opened at the front end of the bucket to cooperate with the fixing bolt thread.

[0012] A further improvement is that the bolt locating member includes a bolt seat arranged at the front end of the bucket, the bolt seat is fixedly connected to both sides of the bucket, and a positioning bolt is provided on the side of the bolt seat away from the bucket. The positioning bolt passes through the bolt seat and is threadedly connected to the positioning hole opened on the outside of the pressure cover.

[0013] Further improvements are: the power arm assembly includes a lifting arm and an adjusting arm, one end of the lifting arm is hinged to the loader, and the other end of the lifting arm is hinged to the bottom end of the bucket, the lower end of the lifting arm is provided with a first hydraulic push rod, the mounting end of the first hydraulic push rod is hinged to the loader, the output end of the first hydraulic push rod is hinged to the lower end of the lifting arm, the lower end of the adjusting arm is fixedly connected to the bottom end of the bucket, the upper end of the adjusting arm is provided with a second hydraulic push rod, the output end of the second hydraulic push rod is hinged to the adjusting arm, and the output end of the second hydraulic push rod is hinged to the loader.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] When the loader loads construction waste, the bucket will scoop up the waste through the shovel teeth at its front end, close the pressure cover on the upper end of the shovel teeth, and the bolt positioning piece will lock the pressure cover from the side of the bucket. The pressure cover covering the outside of the bolt fixing piece will protect the bolt fixing piece to facilitate the disassembly and assembly of the shovel teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 It is a structural diagram of the loader in the utility model.

[0018] Figure 2 It is a structural diagram of the bucket in the present utility model.

[0019] Figure 3 It is a structural diagram of the positioning bolt in the utility model.

[0020] Figure 4 It is a structural diagram of the positioning teeth in the utility model.

[0021] Figure 5 It is a structural diagram of the pressure cover in the utility model.

[0022] Figure 6 It is a structural diagram of the shovel teeth in the utility model.

[0023] Among them: 1. Bucket; 2. Loader; 3. Lifting arm; 4. First hydraulic push rod; 5. Adjusting arm; 6. Second hydraulic push rod; 7. Shovel teeth; 8. Pressure cover; 9. Bolt seat; 10. Rotating pin; 11. Positioning bolt; 12. Fixing bolt; 13. Positioning hole; 14. Threaded hole; 15. Positioning tooth; 16. Groove; 17. Positioning slot. DETAILED DESCRIPTION

[0024] To further clarify the objectives, technical solutions, and advantages of the embodiments of this application, the following will provide a clear and complete description of the technical solutions in the embodiments of this application, in conjunction with the accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of this application, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0025] according to Figure 1 、 2 As shown in Figures 3, 4, 5, and 6, a loader that is convenient for replacing shovel teeth is proposed in this embodiment, including a loader vehicle 2, a bucket 1 and a power arm assembly for controlling the movement of the bucket 1 are provided at the front of the loader vehicle 2;

[0026] Bucket 1 is the main working part of the loader, used for digging and moving materials. The power arm assembly is connected to bucket 1, and the power arm assembly controls the lifting and lowering of bucket 1 to achieve actions such as bucket 1 retraction and unloading.

[0027] The front end array of the bucket 1 is provided with a plurality of positioning teeth 15 and a plurality of shovel teeth 7. The positioning teeth 15 are fixedly connected to the bucket 1, and the shovel teeth 7 are sleeved on the outside of the positioning teeth 15. The front end of the bucket 1 is provided with a bolt fixing part for fixing the shovel teeth 7; the shovel teeth 7 sleeved on the outside of the positioning teeth 15 are fixed to the front end of the bucket 1 through the bolt positioning part. The positioning teeth 15 play a role in positioning the shovel teeth 7, which can increase the structural strength of the connection part between the shovel teeth 7 and the bucket 1. The detachable installation method of the shovel teeth 7 is convenient for the staff to replace the shovel teeth 7, and is highly practical.

[0028] The front end of the bucket 1 is provided with a pressure cover 8, which is arranged on the outside of the bolt fixing piece. One end of the pressure cover 8 is rotatably connected to the upper end of the shovel tooth 7 through a rotating pin 10. The side of the bucket 1 is provided with a bolt positioning piece for fixing the pressure cover 8 that is arranged on the outside of the bolt fixing piece.

[0029] When the loader 2 is loading construction waste, the bucket 1 scoops up the waste using the shovel teeth 7 at its front end. Therefore, in addition to the wear of the shovel teeth 7, the bolt retainer at the front end of the bucket 1 used to secure the shovel teeth 7 will also wear and deform. When the bolt retainer is deformed, the shovel teeth 7 are often locked to the front end of the bucket 1 and difficult to remove, affecting the use of the bucket 1. After the shovel teeth 7 are secured using the bolt retainer, a pressure cap 8 can be fitted over the upper end of the shovel teeth 7. The bolt retainer locks the pressure cap 8 from the side of the bucket 1. The pressure cap 8, which covers the outside of the bolt retainer, protects the bolt retainer, facilitating the assembly and disassembly of the shovel teeth 7.

[0030] About Shovel Tooth 7:

[0031] The shovel tooth 7 is provided with a groove 16 on the side facing the bucket 1, and the front end of the bucket 1 is inserted into the groove 16, and the groove 16 is movably matched with the bucket 1. The shovel tooth 7 is assembled on the front end of the bucket 1 by means of a clamping sleeve. After the assembly of the shovel tooth 7 is completed, the shovel tooth 7 can be fixed with a bolt fixing piece.

[0032] More specifically, a positioning groove 17 is defined within the recess 16, into which the positioning teeth 15 are inserted, and the positioning teeth 15 are movably engaged. The shovel tooth 7 is clamped onto the front end of the bucket 1, and the positioning teeth 15 fixed at the front end of the bucket 1 will press into the positioning groove 17 defined on the inner side of the shovel tooth 7. The positioning teeth 15 will cooperate with the positioning groove 17 to limit the shovel tooth 7 from the inner side of the shovel tooth 7, thereby increasing the structural strength and impact resistance of the shovel tooth 7 after it is fixed.

[0033] In a preferred embodiment, the front end of the shovel teeth 7 is provided with an inclined surface, on which two ridges are provided, which are fixedly connected to the shovel teeth 7 and spaced apart. The ridges at the front end of the shovel teeth 7 can increase the friction between the shovel teeth 7 and the load, making it easier for the bucket 1 to scoop up the waste.

[0034] About the bolt fasteners:

[0035] The bolt fixture includes bolt holes at the upper and lower ends of the tooth 7, which communicate with grooves 16. A fixing bolt 12 is mounted within the bolt holes and threadedly connected to the bolt holes. A threaded hole 14 is provided at the front end of the bucket 1, which threads into the fixing bolt 12. To secure the tooth 7, place it over the front end of the bucket 1, positioning the tooth 7 outside the positioning teeth 15. The bolt holes on the tooth 7 mate with the threaded holes 14 on the front end of the bucket 1. The threaded holes 14 on the tooth 7 are then screwed into the holes, securing the bucket 1 to the tooth 7. To remove the tooth 7, simply unscrew the fixing bolt 12 from the corresponding threaded hole 14.

[0036] About bolt locators:

[0037] The bolt positioning member includes a bolt seat 9 provided at the front end of the bucket 1. The bolt seat 9 is fixedly connected to both sides of the bucket 1. A positioning bolt 11 is provided on the side of the bolt seat 9 away from the bucket 1. The positioning bolt 11 passes through the bolt seat 9 and is threadedly connected to the positioning hole 13 provided on the outside of the gland 8. After the gland 8 is placed on the upper end of the shovel tooth 7, the positioning holes 13 on the left and right sides of the gland 8 will correspond to the bolt seats 9 on the left and right sides of the bucket 1. The positioning bolts 11 on the bolt seat 9 are rotated and screwed into the positioning holes 13. The positioning bolts 11 will cooperate with the positioning holes 13 to limit the continued movement of the gland 8, and the gland 8 protects the fixing bolts 12.

[0038] Since the bolt seat 9 and the positioning bolt 11 are arranged on the left and right sides of the bucket 1 , when the bucket 1 is loaded with construction waste, the construction waste will not directly collide with the positioning bolt 11 under the protection of the bolt seat 9 .

[0039] For the specific structure of the power wall assembly, please refer to the following description.

[0040] The power arm assembly includes a lifting arm 3 and an adjusting arm 5. One end of the lifting arm 3 is hinged to the loader 2, and the other end of the lifting arm 3 is hinged to the bottom end of the bucket 1. The lower end of the lifting arm 3 is provided with a first hydraulic push rod 4, and the mounting end of the first hydraulic push rod 4 is hinged to the loader 2. The output end of the first hydraulic push rod 4 is hinged to the lower end of the lifting arm 3, and the lower end of the adjusting arm 5 is fixedly connected to the bottom end of the bucket 1. The upper end of the adjusting arm 5 is provided with a second hydraulic push rod 6, and the output end of the second hydraulic push rod 6 is hinged to the adjusting arm 5, and the output end of the second hydraulic push rod 6 is hinged to the loader 2.

[0041] The first hydraulic push rod 4 pushes the lifting arm 3, and the lifting arm 3 is lifted upward, driving the bucket 1 to lift together. When the first hydraulic push rod 4 pulls the lifting arm 3, the loader 2 will also fall down. The second hydraulic push rod 6 pushes the adjusting arm 5, and the adjusting arm 5 adjusts the angle of the bucket 1 during rotation.

[0042] How this application works:

[0043] The power arm assembly is connected to the bucket 1, and the lifting and lowering of the bucket 1 are controlled by the power arm assembly to realize the bucket 1's bucketing and unloading actions. The shovel teeth 7, which are mounted on the outside of the positioning teeth 15, are fixed to the front end of the bucket 1 by bolt positioning members. The positioning teeth 15 play a role in positioning the shovel teeth 7, which can increase the structural strength of the connection between the shovel teeth 7 and the bucket 1. When the loader 2 loads construction waste, the bucket 1 will scoop up the waste through the shovel teeth 7 at its front end and close the pressure cover 8 on the upper end of the shovel teeth 7. The bolt positioning member locks the pressure cover 8 from the side of the bucket 1. The pressure cover 8 covering the outside of the bolt fixing member will protect the bolt fixing member to facilitate the disassembly and assembly of the shovel teeth 7.

[0044] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0045] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A loader for facilitating the replacement of shovel teeth, comprising a loader vehicle (2), a bucket (1) and a power arm assembly for controlling the movement of the bucket (1) being provided at the front of the loader vehicle (2), characterized in that: The front end array of the bucket (1) is provided with a plurality of positioning teeth (15) and a plurality of shovel teeth (7), the positioning teeth (15) are fixedly connected to the bucket (1), the shovel teeth (7) are sleeved on the outside of the positioning teeth (15), and the front end of the bucket (1) is provided with a bolt fixing member for fixing the shovel teeth (7); The front end of the bucket (1) is provided with a pressure cover (8), and the pressure cover (8) is arranged on the outside of the bolt fixing member. One end of the pressure cover (8) is rotatably connected to the upper end of the shovel tooth (7) through a rotating pin (10). The side of the bucket (1) is provided with a bolt positioning member for fixing the pressure cover (8) arranged on the outside of the bolt fixing member.

2. A loader for easy replacement of shovel teeth according to claim 1, characterized in that: A groove (16) is provided on the side of the shovel teeth (7) facing the bucket (1), the front end of the bucket (1) is inserted into the groove (16), and the groove (16) is movably matched with the bucket (1).

3. The loader for facilitating replacement of shovel teeth according to claim 2, characterized in that: A positioning groove (17) is provided in the groove (16), the positioning tooth (15) is inserted into the positioning groove (17), and the positioning tooth (15) is movably matched with the positioning groove (17).

4. The loader for facilitating replacement of shovel teeth according to claim 1, characterized in that: The front end of the shovel tooth (7) is provided with an inclined surface, and the inclined surface is provided with two ridges, the ridges are fixedly connected to the shovel tooth (7), and a gap is left between the two ridges.

5. The loader for facilitating replacement of shovel teeth according to claim 2, characterized in that: The bolt fixing member includes bolt holes provided at the upper and lower ends of the shovel teeth (7), the bolt holes being connected to the grooves (16), a fixing bolt (12) being installed in the bolt holes, the fixing bolt (12) being threadedly connected to the bolt holes, and a threaded hole (14) threadedly matched with the fixing bolt (12) is provided at the front end of the bucket (1).

6. The loader with easy shovel tooth replacement according to claim 1, characterized in that: The bolt positioning member includes a bolt seat (9) arranged at the front end of the bucket (1), the bolt seat (9) is fixedly connected to both sides of the bucket (1), and a positioning bolt (11) is provided on the side of the bolt seat (9) away from the bucket (1), and the positioning bolt (11) passes through the bolt seat (9) and is threadedly connected to a positioning hole (13) opened on the outside of the pressure cover (8).

7. The loader with easy replacement of shovel teeth according to claim 1, characterized in that: The power arm assembly includes a lifting arm (3) and an adjusting arm (5), one end of the lifting arm (3) is hinged to the loader (2), and the other end of the lifting arm (3) is hinged to the bottom end of the bucket (1), the lower end of the lifting arm (3) is provided with a first hydraulic push rod (4), the mounting end of the first hydraulic push rod (4) is hinged to the loader (2), the output end of the first hydraulic push rod (4) is hinged to the lower end of the lifting arm (3), the lower end of the adjusting arm (5) is fixedly connected to the bottom end of the bucket (1), the upper end of the adjusting arm (5) is provided with a second hydraulic push rod (6), the output end of the second hydraulic push rod (6) is hinged to the adjusting arm (5), and the output end of the second hydraulic push rod (6) is hinged to the loader (2).

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