Converter for front shovel and back shovel of excavator

Abstract

The utility model relates to a front shovel and back shovel converter of an excavator, which belongs to the technical field of excavators and is arranged on a movable arm, a first oil cylinder is arranged on the movable arm, two sides of the movable arm are movably connected with bucket rods, the movable arm and the bucket rods are movably connected with a conversion component, and a bucket is mounted at the bottom of the conversion component. The conversion assembly comprises a connecting plate, and the top of the connecting plate is fixedly provided with two connecting bases. According to the forward shovel and backhoe converter of the excavator, during conversion, bolts in a reinforcing assembly are firstly detached, a second oil cylinder is driven to drive a toothed plate to move, the toothed plate is meshed with a driving gear, so that a pressing plate can be driven to rotate, the pressing plate is connected with an inserting rod, and therefore the inserting rod can drive a bucket to rotate; and after the bucket is converted, the fixing plate and the bucket are reinforced by reusing the bolts, so that the driving gear can be effectively prevented from being damaged when the bucket works.

Description

TECHNICAL FIELD

[0001] The utility model relates to excavator technical field, concretely is excavator positive, reverse shovel converter. BACKGROUND

[0002] The excavator is also called excavating machine, and is also called earthmoving machine, is the earthmoving machine that the material above or below the support surface is loaded into the transport vehicle or is unloaded to the stock yard with the shovel. The material excavated by the excavator is mainly soil, coal, sand and soil and rock after pre-loosening. From the development of engineering machinery in recent years, the development of excavator is relatively fast, and the excavator has become one of the most important engineering machinery in engineering construction.

[0003] The excavator has different working modes, positive shovel and reverse shovel respectively, positive shovel excavator: the shovel pushes the soil forward, namely "advancing upward, forced cutting soil". The excavating force of the positive shovel excavator is larger, and is suitable for excavating the soil above the support surface; reverse shovel excavator: the shovel pulls the soil backward, namely "retreating downward, forced cutting soil". The excavating force of the reverse shovel excavator is relatively small, and is suitable for excavating the soil below the support surface. Therefore, when the positive shovel and the reverse shovel are switched, the machine needs to be stopped, and the crane is matched to remove the current shovel, and the new shovel is installed on the shovel arm of the excavator, the process is time-consuming and laborious, and the working efficiency is greatly affected, so the excavator positive, reverse shovel converter is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] In view of the defects of prior art, the utility model provides excavator positive, reverse shovel converter, has the advantages of convenient positive and reverse shovel conversion, improves working efficiency, solves the problem of inconvenient switching and affects working efficiency.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: excavator positive, reverse shovel converter, is arranged on the movable arm, the movable arm is provided with the first oil cylinder, the both sides of the movable arm are movably connected with the bucket rod, the movable arm and the bucket rod movably connect with the conversion assembly, the bottom of the conversion assembly is installed with the shovel;

[0006] The connecting plate is internally provided with a limiting groove, the top of the connecting plate is movably connected with a pressing plate, the inserting rods penetrate through the pressing plate, and the surface of the inserting rods and above the pressing plate are threadedly connected with nuts, the top of the pressing plate is fixedly connected with a driving gear, the top of the connecting plate is fixedly provided with a second oil cylinder, and the output shaft of the second oil cylinder is fixedly connected with a toothed plate.

[0007] Further, the top and bottom of the connecting plate are provided with sliding grooves, the bottom of the pressing plate and the top of the mounting plate are provided with universal balls, and the universal balls are located in the sliding grooves.

[0008] Further, the limiting groove is provided with two limiting grooves, and the arc length of the left limiting groove is smaller than that of the right limiting groove.

[0009] Further, the toothed plate is in an L shape, and the inner side of the toothed plate and the driving gear is provided with a clamping tooth, and the toothed plate is engaged with the driving gear through the clamping tooth.

[0010] Further, the length of the pressing plate is greater than the spacing of the two inserting rods, and the pressing plate is parallel to the connecting plate.

[0011] Further, the surface of the connecting plate is fixedly connected with a supporting seat, and the second oil cylinder is fixedly connected with the connecting plate through the supporting seat.

[0012] Further, the two sides of the connecting plate are provided with reinforcing assemblies, the reinforcing assembly comprises a fixed plate which is integrally formed with the connecting plate, the inside of the fixed plate is movably connected with a bolt, and the bolt penetrates through the bucket and the fixed plate.

[0013] Compared with the prior art, the technical scheme has the following beneficial effects:

[0014] The excavator forward and reverse bucket converter, when converting, first removes the bolt in the reinforcing assembly, drives the second oil cylinder to move the toothed plate, the toothed plate is engaged with the driving gear, so that the pressing plate can be driven to rotate, the pressing plate is connected with the inserting rod, so that the inserting rod can drive the bucket to rotate, after the bucket rotates one hundred and eighty degrees, the bucket is converted, and the fixed plate and the bucket are reinforced by using the bolt again, which can effectively prevent the bucket from damaging the driving gear when working. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1It is state one structure schematic view of the utility model.

[0016] Fig. 2 It is the connecting structure schematic view of the bucket and the conversion assembly of the utility model.

[0017] Fig. 3 It is the structure perspective view of the conversion assembly of the utility model.

[0018] Fig. 4 It is the connecting structure lower view of the mounting plate and the connecting plate of the utility model.

[0019] Fig. 5 It is the connecting structure schematic view of the bucket and the mounting plate of the utility model.

[0020] Fig. 6 It is state two structure schematic view of the utility model.

[0021] In the drawing: 1 swing arm, 2 first oil cylinder, 3 bucket arm, 4 conversion assembly, 401 connecting plate, 402 connecting seat, 403 limiting groove, 404 mounting plate, 405 inserting rod, 406 pressing plate, 407 nut, 408 driving gear, 409 second oil cylinder, 410 toothed plate, 5 bucket, 6 sliding groove, 7 universal ball, 8 fixed plate, 9 bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figs. 1 to 6 The excavator forward and reverse bucket converter in the embodiment is arranged on the swing arm 1, the swing arm 1 is provided with the first oil cylinder 2, the swing arm 1 is movably connected with the bucket arm 3 on both sides, the swing arm 1 and the bucket arm 3 are movably connected with the conversion assembly 4, and the conversion assembly 4 is provided with the bucket 5 at the bottom.

[0024] The telescopic cooperation of the first oil cylinder 2 and the bucket arm 3 can make the bucket 5 on the conversion assembly 4 swing to excavate ground material, when switching the forward and reverse buckets, the conversion assembly 4 can drive the bucket 5 to rotate, the bucket 5 is locked after rotating one hundred and eighty degrees, thereby completing the conversion of the forward and reverse buckets, avoiding the process of replacing the bucket, and greatly improving the work efficiency.

[0025] The conversion assembly 4 comprises a connecting plate 401, the top of the connecting plate 401 is fixedly provided with two connecting seats 402, one of the connecting seats 402 is rotatably connected with the bottom end of the movable arm 1, the other connecting seat 402 is rotatably connected with the output shaft of the first oil cylinder 2, the two sides are rotatably connected with the arm 3, the inside of the connecting plate 401 is provided with two limiting grooves 403, the arc length of the left limiting groove 403 is smaller than that of the right limiting groove 403, the bottom of the connecting plate 401 is movably connected with a mounting plate 404, the surface of the mounting plate 404 is fixedly provided with two inserting rods 405, the top of the two inserting rods 405 extends to the top of the connecting plate 401 through the limiting grooves 403, the top of the connecting plate 401 is movably connected with a pressing plate 406, the inserting rods 405 penetrate through the pressing plate 406, and the surface of the inserting rods 405 and above the pressing plate 406 is threadedly connected with a nut 407, the top of the pressing plate 406 is fixedly connected with a driving gear 408, the top of the connecting plate 401 is fixedly provided with a second oil cylinder 409, the output shaft of the second oil cylinder 409 is fixedly connected with a toothed plate 410, and the toothed plate 410 is engaged with the driving gear 408.

[0026] The two sides of the connecting plate 401 are provided with reinforcing assemblies, the reinforcing assembly comprises a fixed plate 8 which is integrally formed with the connecting plate 401, and a bolt 9 movably connected in the inside of the fixed plate 8, and the bolt 9 penetrates through the bucket 5 and the fixed plate 8.

[0027] The toothed plate 410 is L-shaped, and the inside of the toothed plate 410 which is in contact with the driving gear 408 is provided with a clamping tooth, the toothed plate 410 is engaged with the driving gear 408 through the clamping tooth, the length of the pressing plate 406 is greater than the spacing of the two inserting rods 405, the pressing plate 406 is parallel to the connecting plate 401, the surface of the connecting plate 401 is fixedly connected with a support seat, and the second oil cylinder 409 is fixedly connected with the connecting plate 401 through the support seat.

[0028] When the conversion is carried out, the bolt 9 in the reinforcing assembly is first removed, the second oil cylinder 409 is driven to move the toothed plate 410, the toothed plate 410 is engaged with the driving gear 408, so that the pressing plate 406 can be driven to rotate, the pressing plate 406 is connected with the inserting rod 405, so that the inserting rod 405 can drive the bucket 5 to rotate, after the bucket 5 rotates one hundred and eighty degrees, the bucket is converted, the fixed plate 8 is reinforced with the bucket 5 by using the bolt 9 again, which can effectively prevent the bucket 5 from damaging the driving gear 408 when working.

[0029] The top and the bottom of the connecting plate 401 are provided with sliding grooves 6, the bottom of the pressing plate 406 and the top of the mounting plate 404 are provided with universal balls 7, and the universal balls 7 are located in the inside of the sliding grooves 6.

[0030] When the connecting plate 401 rotates, the universal wheel 7 rolls in the sliding groove 6, which not only supports and limits the shovel 5, but also reduces friction and increases service life.

[0031] The working principle of the above embodiment is as follows:

[0032] The telescopic cooperation of the first oil cylinder 2 with the boom 3 can make the shovel 5 on the conversion assembly 4 swing to excavate ground materials.

[0033] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A front and back shovel converter for an excavator, mounted on the boom (1), wherein a first hydraulic cylinder (2) is mounted on the boom (1), and sticks (3) are movably connected to both sides of the boom (1), characterized in that: The boom (1) and the stick (3) are movably connected by a conversion assembly (4), and a bucket (5) is installed at the bottom of the conversion assembly (4). The conversion assembly (4) includes a connecting plate (401). Two connecting seats (402) are fixedly installed on the top of the connecting plate (401). One connecting seat (402) is rotatably connected to the bottom end of the boom (1), and the other connecting seat (402) is rotatably connected to the output shaft of the first oil cylinder (2). Both sides of the other connecting seat are rotatably connected to the stick (3). A limit groove (403) is provided inside the connecting plate (401). A mounting plate (404) is movably connected to the bottom of the connecting plate (401). Two insert rods (405) are fixedly connected to the surface of the mounting plate (404). The two insert rods (405) The top of the rod extends above the connecting plate (401) through the limiting groove (403). The top of the connecting plate (401) is movably connected to the pressure plate (406). The rod (405) passes through the pressure plate (406), and the surface of the rod (405) and above the pressure plate (406) is threaded with a nut (407). The top of the pressure plate (406) is fixedly connected to the drive gear (408). The top of the connecting plate (401) is fixedly installed with the second oil cylinder (409). The output shaft of the second oil cylinder (409) is fixedly connected to the toothed plate (410), and the toothed plate (410) meshes with the drive gear (408).

2. The excavator front and back shovel converter according to claim 1, characterized in that: The top and bottom of the connecting plate (401) are provided with sliding grooves (6), and the bottom of the pressure plate (406) and the top of the mounting plate (404) are provided with universal balls (7), which are located inside the sliding grooves (6).

3. The excavator front and back shovel converter according to claim 1, characterized in that: There are two limiting grooves (403), and the arc length of the left limiting groove (403) is smaller than the arc length of the right limiting groove (403).

4. The excavator front and back shovel converter according to claim 1, characterized in that: The toothed plate (410) is L-shaped, and the inner side of the toothed plate (410) that is in contact with the drive gear (408) is provided with a retaining tooth, and the toothed plate (410) meshes with the drive gear (408) through the retaining tooth.

5. The excavator front and back shovel converter according to claim 1, characterized in that: The length of the pressure plate (406) is greater than the distance between the two inserts (405), and the pressure plate (406) is parallel to the connecting plate (401).

6. The excavator front and back shovel converter according to claim 1, characterized in that: A support seat is fixedly connected to the surface of the connecting plate (401), and the second oil cylinder (409) is fixedly connected to the connecting plate (401) through the support seat.

7. The excavator front and back shovel converter according to claim 1, characterized in that: The connecting plate (401) is provided with reinforcement components on both sides. The reinforcement components include a fixing plate (8) integrally formed with the connecting plate (401). The fixing plate (8) is movably connected with bolts (9), which penetrate the bucket (5) and the fixing plate (8).

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