Excavating arm rotating support of excavating machine

Abstract

The utility model discloses an excavating machine excavating arm rotation support which comprises a bottom shell, a top plate is installed on the top of the bottom shell, two protruding blocks are machined at the bottom of the top plate, a support body is connected to the outer walls of the two protruding blocks in a clamped mode, an installation device is arranged on the inner wall of the bottom shell, and the installation device comprises a lead screw, a rotating shaft and a rotating shaft. The shell is rotationally connected to the inner wall of the bottom shell through a bearing; the inclined plate is in threaded connection with the outer wall of the lead screw; the multiple sliding rods are movably connected to the outer wall of the inclined plate; and the multiple insertion rods are movably connected to the inner wall of the bottom shell. According to the rotary support of the excavating arm of the excavating machine, the top plate is installed on the top of the support body through the installation device, the installation mode replaces an original installation mode of a plurality of bolts, and when the rotary support is damaged, the top plate and the support body can be rapidly detached and separated. Therefore, the maintenance efficiency of the rotary bracket of the excavating arm of the excavating machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to excavator technical field, concretely is a kind of excavating arm slewing support of excavating machinery. BACKGROUND

[0002] Excavator is also called excavating machinery, since they can be easily used with general transport vehicle to transfer scene, become the ideal equipment of urban area earthwork engineering application, and excavator can carry out construction work, cannot do without the support of slewing structure frame, make excavator have the function of slewing by slewing structure frame, so that excavator can flexibly carry out construction work;

[0003] The excavating arm slewing support of excavating machinery in the prior art is fixed on the chassis of excavator by multiple bolts when in use, the bottom slewing motor drives gear rotation, the gear drives external gear ring to rotate on the chassis of excavator, the gear ring drives the rotation of upper cab and bucket, so as to realize the transfer of materials in bucket.

[0004] The excavating arm slewing support of excavating machinery in the prior art is fixed on the chassis of excavator by multiple bolts when in use, the bottom slewing motor drives gear rotation, the gear drives external gear ring to rotate on the chassis of excavator, the gear ring drives the rotation of upper cab and bucket, so as to realize the transfer of materials in bucket. UTILITY MODEL CONTENTS

[0005] In view of the defects of the prior art, the utility model provides an excavating arm slewing support of excavating machinery, which solves the problem that the excavating arm slewing support of excavating machinery in the prior art is fixed on the chassis of excavator by multiple bolts when in use, the bottom slewing motor drives gear rotation, the gear drives external gear ring to rotate on the chassis of excavator, the gear ring drives the rotation of upper cab and bucket, so as to realize the transfer of materials in bucket.

[0006] To achieve the above object, the utility model discloses a kind of excavating machinery excavating arm slewing support, including bottom shell, the top of the bottom shell is equipped with top plate, the bottom of the top plate is processed with two lugs, the outer wall of two The bracket body is clamped, the inner wall of the bottom shell is equipped with mounting device, the mounting device includes: screw rod, is rotatably connected to the inner wall of the bottom shell by bearing;Ramp, is threadedly connected to the outer wall of the screw rod;Slide bar, be provided with multiple, all movably connected to the outer wall of the ramp;Plug rod, be provided with multiple, all movably connected to the inner wall of the bottom shell, and with the inner wall of the bracket body is inserted;Reset part, be provided with multiple, respectively installed on the outer wall of multiple plug rod;Wherein, the screw rod is moved outward by ramp when working and drives the plug rod of slide bar outer wall, the plug rod is inserted into bracket body interior and the top plate above bottom shell is fixed.

[0007] Preferably, the reset part includes: sleeve plate, provided with two, respectively installed on the outer wall of two plug rod;Spring, provided with two, respectively detachably connected to the outer wall of two plug rod, and detachably connected with the inner wall of the bottom shell;Wherein, the spring is reset by sleeve plate and drives plug rod.

[0008] Preferably, the bottom of the bracket body is equipped with gear ring, the outer wall of the gear ring is rotatably connected with outer frame by bearing, and the bottom of the outer frame is equipped with excavator chassis.

[0009] Preferably, the inner wall of the gear ring is engaged with gear, the bottom of the gear is detachably connected with servo motor, and the outer wall of the servo motor is detachably connected with the outer wall of the excavator chassis.

[0010] Preferably, the outer wall of the outer frame is equipped with side cylinder, the inner wall of the side cylinder is equipped with oil supplementing device, and the oil supplementing device includes: oil inlet, communicated with the outer wall of the side cylinder;Sponge, installed on the inner wall of the side cylinder;Slide plate, movably connected to the inner wall of the side cylinder, and fitted with the outer wall of the sponge;Threaded rod, rotatably connected to the inner wall of the slide plate by bearing, and threadedly connected with the inner wall of the side cylinder;Wherein, the threaded rod is extruded sponge when rotating by slide plate, and the lubricating oil inside the sponge is added into the bearing inside the inner wall of the outer frame.

[0011] Beneficial effects

[0012] The utility model provides a kind of excavating machinery excavating arm slewing support. It has the following beneficial effects: the excavating machinery excavating arm slewing support, top plate is installed on the top of bracket body by mounting device, this kind of installation mode replaces the installation mode of original multiple bolts, when slewing support appears damage, top plate and bracket body can be quickly disassembled and separated, so that the maintenance efficiency of excavating machinery excavating arm slewing support is improved;

[0013] Lubricating oil is added to the inside of the outer frame through the oil replenishment device. When the bearing inside the outer frame becomes blocked, the lubricating oil lubricates the bearing, making the rotation between the outer frame and the gear ring smoother. When the servo motor is working, it drives the gear ring to rotate through the gear. The gear ring adjusts the direction of the cab and the bucket above the top plate through the bracket body. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the planar section structure;

[0016] Figure 3 for Figure 2 Schematic diagram of the connection structure between the oil inlet, sponge, and slide plate;

[0017] Figure 4 for Figure 2 A schematic diagram of the connection structure of the inclined plate, sliding rod, and insertion rod.

[0018] In the diagram: 1. Bottom shell; 2. Mounting device; 21. Lead screw; 22. Inclined plate; 23. Slide rod; 24. Insert rod; 25. Reset part; 251. Sleeve plate; 252. Spring; 3. Top plate; 4. Protrusion; 5. Support body; 6. Gear ring; 7. Outer frame; 8. Side cylinder; 9. Oil replenishment device; 91. Oil inlet; 92. Sponge; 93. Slide plate; 94. Threaded rod; 10. Gear; 11. Servo motor; 12. Excavator chassis. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0021] In traditional excavator boom slewing brackets, multiple bolts are used to fix the slewing bracket to the excavator chassis during use. When the slewing bracket is damaged and needs to be disassembled for maintenance and repair, multiple bolts need to be turned to remove the slewing bracket from the excavator chassis. The process of turning multiple bolts is cumbersome, which reduces the maintenance and repair efficiency of the excavator boom slewing bracket.

[0022] Therefore, the excavating machine excavating arm slewing support provided by the utility model has the advantages that the top plate is installed on the top of the support main body through the mounting device, which replaces the original mounting mode of multiple bolts, and when the slewing support is damaged, the top plate and the support main body can be quickly disassembled and separated, thereby improving the maintenance and repair efficiency of the excavating machine excavating arm slewing support.

[0023] Embodiment one: comprising Figure 1 、 2 , 3 and 4, a kind of excavating machine excavating arm slewing support, including bottom shell 1, the top of bottom shell 1 is equipped with top plate 3, the bottom of top plate 3 is processed with two lugs 4, the outer wall of two lugs 4 is connected with support main body 5, the inner wall of bottom shell 1 is equipped with mounting device 2, and mounting device 2 includes: screw rod 21, is rotatably connected to the inner wall of bottom shell 1 by bearing;Ramp 22 is threadedly connected to the outer wall of screw rod 21;Slide bar 23 is set to multiple, and is movably connected to the outer wall of ramp 22;Plug rod 24 is set to multiple, and is movably connected to the inner wall of bottom shell 1, and is inserted with the inner wall of support main body 5;Reset part 25 is set to multiple, and is respectively installed on the outer wall of multiple plug rods 24;Among them, screw rod 21 works by ramp 22 and drives the plug rod 24 of the outer wall of slide bar 23 to move outward, and plug rod 24 is inserted into support main body 5 to fix top plate 3 above bottom shell 1;

[0024] In the specific implementation process, it is particularly worth pointing out that reset part 25 helps plug rod 24 reset, screw rod 21 works by ramp 22 and drives slide bar 23 to move, slide bar 23 drives plug rod 24 to move outward, plug rod 24 is inserted into support main body 5 to fix top plate 3 above bottom shell 1, and lug 4 enters the inside of support main body 5, and bottom shell 1 and support main body 5 are positioned by top plate 3;

[0025] Specifically, when using the excavating machine excavating arm slewing support, the staff twists screw rod 21 to rotate, screw rod 21 drives ramp 22 to move upwards, ramp 22 drives plug rod 24 to move outward through slide bar 23, plug rod 24 is inserted into support main body 5, and top plate 3 is fixed on the top of support main body 5 by bottom shell 1, so as to facilitate the fixation of top plate 3 on support main body 5.

[0026] Embodiment two: comprising Figure 1 、 2 and 4, reset part 25 includes: sleeve plate 251, set to two, and is respectively installed on the outer wall of two plug rods 24;Spring 252 is set to two, and is respectively detachably connected to the outer wall of two plug rods 24, and is detachably connected with the inner wall of bottom shell 1;Among them, spring 252 drives plug rod 24 to reset through sleeve plate 251;

[0027] In the implementation process, it is worth pointing out that when the insertion rod 24 drives the sleeve plate 251 to move outward, the spring 252 is compressed, and when the insertion rod 24 is not affected by external force, the spring 252 in the compressed state helps the insertion rod 24 to reset through the sleeve plate 251, so that the top plate 3 can be easily disassembled from the support body 5;

[0028] Further, the bottom of the support body 5 is provided with a gear ring 6, the outer wall of the gear ring 6 is rotatably connected with an outer frame 7 through a bearing, and the bottom of the outer frame 7 is provided with an excavator chassis 12;

[0029] In the implementation process, it is worth pointing out that the gear ring 6 drives the support body 5 to rotate, the outer frame 7 limits the gear ring 6, and the excavator chassis 12 fixes the outer frame 7;

[0030] Further, the inner wall of the gear ring 6 is engaged with a gear 10, the bottom of the gear 10 is detachably connected with a servo motor 11, and the outer wall of the servo motor 11 is detachably connected with the outer wall of the excavator chassis 12;

[0031] In the implementation process, it is worth pointing out that the model of the servo motor 11 is SM80-D601930, and when the servo motor 11 works, the gear ring 6 is driven to rotate through the gear 10;

[0032] Specifically, on the basis of the above embodiment one, when the servo motor 11 works, the gear ring 6 is driven to rotate through the gear 10, the gear ring 6 drives the top plate 3 above the bottom shell 1 to rotate through the support body 5, so as to adjust the direction of the excavator cab and the bucket above the top plate 3, when the insertion rod 24 moves outward, the spring 252 is compressed through the sleeve plate 251, and when the insertion rod 24 is not affected by external force, the spring 252 in the compressed state helps the insertion rod 24 to reset through the sleeve plate 251, so that the top plate 3 can be disassembled from the support body 5.

[0033] Embodiment three: from Figure 1 、 2 and 3, the outer wall of the outer frame 7 is provided with a side cylinder 8, the inner wall of the side cylinder 8 is provided with an oil supplementing device 9, the oil supplementing device 9 comprises: an oil inlet 91 communicated with the outer wall of the side cylinder 8; a sponge 92 installed on the inner wall of the side cylinder 8; a sliding plate 93 movably connected to the inner wall of the side cylinder 8 and abutting the outer wall of the sponge 92; a threaded rod 94 rotatably connected to the inner wall of the sliding plate 93 and threadedly connected with the inner wall of the side cylinder 8; wherein when the threaded rod 94 rotates, the sponge 92 is extruded through the sliding plate 93, and the lubricating oil inside the sponge 92 is added to the bearing inside the inner wall of the outer frame 7;

[0034] In the implementation process, it is worth pointing out that the threaded rod 94 is twisted to drive the sliding plate 93 to move, and the sliding plate 93 extrudes the sponge 92 to add the internal lubricating oil to the bearing inside the inner wall of the outer frame 7;

[0035] Specifically, on the basis of the above embodiment one, the staff twists the threaded rod 94 to drive the sliding plate 93 to move, the sliding plate 93 extrudes the sponge 92 to add the internal lubricating oil into the bearing inside the outer frame 7 inner wall, so that the bearing always keeps smooth state.

[0036] It is to be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or action from another, and do not necessarily require or imply these entities or actions are in any such actual relationship or order. Also, the terms "comprises", "comprising", or any other variations thereof are intended to cover a non-exclusive inclusion, so 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 more limitations, the statement "comprises a limited element" does not exclude the existence of additional identical elements in the process, method, article, or apparatus including the stated element.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connecting" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited, the above terms in the present application can be understood according to the specific meaning of the above terms by the person skilled in the art according to the specific circumstances.

[0038] Although the embodiments of the present application have been shown and described, it is understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A slewing support for an excavating arm of an excavating machine, comprising a base shell (1), characterized in that: A top plate (3) is installed on the top of the bottom shell (1). Two protrusions (4) are machined on the bottom of the top plate (3). A bracket body (5) is snapped onto the outer wall of the two protrusions (4). An installation device (2) is provided on the inner wall of the bottom shell (1). The installation device (2) includes: The lead screw (21) is rotatably connected to the inner wall of the bottom shell (1) via a bearing; Inclined plate (22) is threaded to the outer wall of the lead screw (21); Multiple sliding rods (23) are provided, all of which are movably connected to the outer wall of the inclined plate (22); Multiple insertion rods (24) are provided, all of which are movably connected to the inner wall of the bottom shell (1) and are inserted into the inner wall of the support body (5); Multiple reset parts (25) are provided and are respectively installed on the outer wall of the multiple insertion rods (24); When the lead screw (21) is working, it drives the insert rod (24) on the outer wall of the slide rod (23) to move outward through the inclined plate (22). The insert rod (24) is inserted into the support body (5) to fix the top plate (3) above the bottom shell (1).

2. The excavator arm rotary support for excavating machinery according to claim 1, characterized in that: The reset part (25) includes: Two sleeve plates (251) are provided and are respectively installed on the outer walls of the two inserts (24); Two springs (252) are provided, which are detachably connected to the outer walls of the two inserts (24) and detachably connected to the inner wall of the bottom shell (1); The spring (252) drives the insert rod (24) to reset via the sleeve plate (251).

3. The excavator arm slewing bracket for excavating machinery according to claim 1, characterized in that: A toothed ring (6) is installed at the bottom of the main body (5) of the bracket. The outer wall of the toothed ring (6) is rotatably connected to an outer frame (7) through a bearing. An excavator chassis (12) is installed at the bottom of the outer frame (7).

4. The excavator arm rotary support for excavating machinery according to claim 3, characterized in that: The inner wall of the gear ring (6) is meshed with a gear (10), and the bottom of the gear (10) is detachably connected to a servo motor (11). The outer wall of the servo motor (11) is detachably connected to the outer wall of the excavator chassis (12).

5. The excavator boom slewing bracket for excavating machinery according to claim 3, characterized in that: The outer wall of the outer frame (7) is fitted with a side cylinder (8), and the inner wall of the side cylinder (8) is provided with an oil replenishing device (9), the oil replenishing device (9) comprising: The oil inlet (91) is connected to the outer wall of the side cylinder (8); Sponge (92) is installed on the inner wall of the side tube (8); The slide plate (93) is movably connected to the inner wall of the side tube (8) and fits against the outer wall of the sponge (92); The threaded rod (94) is rotatably connected to the inner wall of the slide plate (93) via a bearing, and is threadedly connected to the inner wall of the side cylinder (8); When the threaded rod (94) rotates, it squeezes the sponge (92) through the slide plate (93), and the lubricating oil inside the sponge (92) is added to the bearing inside the inner wall of the outer frame (7).

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