CN210315747U

CN210315747U - Hydraulic motor fixing device for excavator

Info

Publication number: CN210315747U
Application number: CN201921126842.6U
Authority: CN
Inventors: 闫怀国
Original assignee: Shandong Lipai Machinery Group Co Ltd
Current assignee: Shandong Lipai Machinery Group Co Ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-04-14
Anticipated expiration: 2029-07-18

Abstract

A hydraulic motor fixing device for an excavator comprises a walking frame and a rotary table base plate, wherein the walking frame is arranged below the rotary table base plate; the upper part of the walking frame is provided with an inner gear ring, the upper part of the turntable seat plate is provided with a hydraulic motor, the lower part of the hydraulic motor is connected with a gear in a rotating mode, and the gear is meshed with the inner gear ring; a reinforcing part is arranged between the turntable seat plate and the hydraulic motor and comprises an installation seat, a through hole is formed in the middle of the installation seat, fixing plates are arranged on two sides of the installation seat, a base plate is arranged on the upper portion of each fixing plate, a meniscus is arranged on the upper portion of each base plate, and the turntable seat plate, the fixing plates, the base plates and the menisci are fixedly connected through bolts; through reinforcement portion reinforcement hydraulic motor, the fixed plate setting sets gradually in the both sides of mount pad, and fixed plate, backing plate and meniscus from the bottom up press from both sides hydraulic motor in the centre, play the fixed action, and the meniscus is along covering the motor seat simultaneously, exerts the holding down force to the motor seat, the better fixed action that plays.

Description

Hydraulic motor fixing device for excavator

The technical field is as follows:

the utility model belongs to the technical field of the excavator technique and specifically relates to a hydraulic motor fixing device for excavator that says so.

Background art:

an excavator is an earth moving machine that excavates material above or below a bearing surface with a bucket and loads it into a transport vehicle or unloads it to a stockyard. During operation, the lower frame of the excavator is usually fixed, and the direction of the mechanical arm is adjusted through rotation of the upper frame, so that excavation and earth loading work is performed. The relative rotation between the upper frame and the lower frame is realized through a slewing mechanism, the slewing mechanism mainly comprises a hydraulic motor and a slewing bearing, the slewing bearing is essentially an inner gear ring, and a gear at the lower part of the hydraulic motor is meshed with the inner gear ring. The inner gear ring is fixedly connected with the lower frame, the inner gear ring is fixed when the upper frame rotates, and the gear rotates and rotates along the inner gear ring through the driving of the hydraulic motor, so that the upper frame is driven to rotate. The action stress between the gear and the inner gear ring is very large, the rotary motor in the prior art is usually directly fixed on the turntable base plate through bolts, and the bolts are easy to loosen under the action of long-term stress, so that the rotary motor moves, the gear beating phenomenon is caused between the gear and the inner gear ring, and the gear or the inner gear ring is damaged.

The invention content is as follows:

in order to solve the problems, the utility model overcomes the defects of the prior art, and provides a hydraulic motor fixing device for excavator, which can be very firm and has the advantages of convenient use, effective reduction of the damage rate of the hydraulic motor and the inner gear ring.

In order to achieve the purpose, the hydraulic motor fixing device for the excavator comprises a walking frame and a turntable seat plate, wherein the walking frame is arranged below the turntable seat plate; the upper part of the walking frame is provided with an inner gear ring, the upper part of the turntable seat plate is provided with a hydraulic motor, the lower part of the hydraulic motor is connected with a gear in a rotating mode, and the gear is meshed with the inner gear ring; be provided with between revolving stage bedplate and the hydraulic motor with reinforcement portion, reinforcement portion includes the mount pad, and the mount pad middle part is provided with the through-hole, and the mount pad both sides are provided with the fixed plate, and fixed plate upper portion is provided with the backing plate, and backing plate upper portion is provided with the meniscus, and revolving stage bedplate, fixed plate, backing plate and meniscus pass through bolt fixed connection.

Further, hydraulic motor includes motor body and motor seat, and the motor body sets up on the upper portion of motor seat, and the motor seat sets up on mount pad upper portion.

Furthermore, the sum of the thickness of the motor seat and the thickness of the mounting seat is equal to the sum of the thickness of the fixing plate and the thickness of the cushion plate.

Further, the meniscus includes a meniscus body and a meniscus edge, the meniscus body being disposed above the pad, the meniscus edge overlying the motor mount.

Furthermore, the two menisci are arranged in a central symmetry mode by taking the hydraulic motor as an axis.

The utility model has the advantages that:

the utility model provides a hydraulic motor fixing device for excavator mainly adds hydraulic motor through reinforcement, and reinforcement includes mount pad, fixed plate, backing plate and meniscus, and the fixed plate setting sets gradually in the both sides of mount pad from the bottom up at the fixed plate, backing plate and meniscus, presss from both sides hydraulic motor in the centre, plays the fixed action, and the meniscus is along covering the motor seat simultaneously, exerts the holding down force to the motor seat, the better fixed action that plays.

Fix the hydraulic motor support on the revolving stage bedplate by among the prior art, change to fixing on the mount pad, and through the fixed plate, backing plate and meniscus firmly fix hydraulic motor on the mount pad with the parcel form, not only exist between hydraulic motor and the reinforcement and produce the pulling force by bolted connection, still there are the stress that fixed plate and backing plate edgewise produced hydraulic motor, and the meniscus from the top down force of exerting motor seat, multiple stress combines, make the fixed more firm of hydraulic motor, be difficult for taking place to remove more.

The fixed plate is fixedly connected with the reinforcing part and the rotary table base plate through bolts, the contact area between the fixed plate and the rotary table base plate is large, the bolts are arranged at two ends and close to the edges, and the stability is better.

The meniscus sets up to half moon column structure, and one side is provided with the cambered surface that suits with the hydraulic motor outside shape, when installing on reinforced portion, the cambered surface of meniscus just in time with hydraulic motor's outside shape in close contact with, fixed effect is better.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic diagram of a detail enlarged structure of the reinforcing part of the present invention;

FIG. 5 is a schematic view of the mounting seat and the fixing plate of the present invention;

in the drawings: 1. the rotary table comprises a rotary table seat plate, 2, an inner gear ring, 3, a hydraulic motor, 4, a reinforcing part, 5, a mounting seat, 6, a fixing plate, 7, a through hole, 8, a cushion plate, 9, a meniscus, 10, a bolt, 11 and a gear.

The specific implementation mode is as follows:

in order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the accompanying

drawings

1, 2, 3, 4 and 5 of the present invention to describe the present invention in more detail.

The utility model provides a hydraulic motor fixing device for an excavator, which comprises a walking frame and a turntable seat plate 1, wherein the walking frame is arranged below the turntable seat plate 1; the upper part of the walking frame is provided with an inner gear ring 2, the upper part of the turntable seat plate 1 is provided with a hydraulic motor 3, the lower part of the hydraulic motor 3 is connected with a gear 11 in a rotating mode, and the gear 11 is meshed with the inner gear ring 2; a reinforcing part 4 is arranged between the turntable seat plate 1 and the hydraulic motor 3, the reinforcing part 4 comprises an installation seat 5, a through hole 7 is arranged in the middle of the installation seat 5, fixing plates 6 are arranged on two sides of the installation seat 5, a base plate 8 is arranged on the upper portion of the fixing plate 6, a meniscus 9 is arranged on the upper portion of the base plate 8, and the turntable seat plate 1, the fixing plates 6, the base plate 8 and the meniscus 9 are fixedly connected through bolts 10; the hydraulic motor 3 comprises a motor body and a motor seat, the motor body is arranged on the upper part of the motor seat, and the motor seat is arranged on the upper part of the mounting seat 5; the sum of the thickness of the motor seat and the thickness of the mounting seat 5 is equal to the sum of the thickness of the fixing plate 6 and the thickness of the backing plate 8; the meniscus 9 comprises a meniscus body and a meniscus edge, the meniscus body is arranged above the pad 8, and the meniscus edge covers the motor seat; the two menisci 9 are arranged in axial center symmetry with the hydraulic motor 3 as the axis.

The utility model discloses a one of them embodiment as follows:

the utility model discloses a set up 4 reinforced portions and solve technical problem, reinforced portion 4 mainly includes mount pad 5, fixed plate 6, backing plate 8 and meniscus 9, mount pad 5 is square shape structure, mount pad 5 middle part is provided with through-hole 7, gear 11 of hydraulic motor 3 lower part can pass from through-hole 7, mount pad 5 both sides are fixed and are provided with fixed plate 6, the thickness of fixed plate 6 is slightly thicker than mount pad 5, fixed plate 6 upper portion sets up backing plate 8, the thickness sum of fixed plate 6 and backing plate 8 equals with the thickness sum of hydraulic motor 3 and mount pad 5, this makes after hydraulic motor 3 and backing plate 8 all installed in place, the motor seat is as high as backing plate 8; set up meniscus 9 on backing plate 8, because motor seat and backing plate 8 are the same height, meniscus 9 just can be seamless covers backing plate 8 and motor seat simultaneously, then fixes together meniscus 9, backing plate 8 and fixed plate 6 on revolving stage bedplate 1 through bolt 10, accomplishes the installation of reinforced portion 4.

Meanwhile, the hydraulic motor 3 is fixed on the mounting base 5 through a bolt 10; the contact area of the fixing plate 6 and the turntable base plate 1 is larger, and the fixing position of the bolt 10 is located at the end of the fixing plate 6, so that the stability of the fixing plate 6 is further increased.

When the hydraulic motor 3 is mounted on the reinforcing part 4, three stresses exist between the hydraulic motor 3 and the reinforcing part 4, which are: the stress generated by the connection between the motor seat and the mounting seat 5 through the bolt 10, the stress generated by the fixing plate 6 and the backing plate 8 on the two sides of the motor seat to the motor seat, and the pressing stress generated by the meniscus 9 on the upper part to the motor seat. The three stresses act together on the motor base, so that the motor base and the mounting base 5 are more firmly fixed.

During operation, the hydraulic motor 3 is fixed on the mounting base 5 through the bolts 10, the backing plate 8 is arranged on the upper portion of the fixing plate 6 on the two sides of the mounting base 5, the meniscus 9 is arranged on the upper portion of the backing plate, and then the mounting base 5, the fixing plate 6, the backing plate 8 and the meniscus 9 are all fixed on the turntable base plate 1 through the bolts 10; the lower part of the hydraulic motor 3 is provided with a gear 11, and the gear 11 penetrates out of a through hole 7 in the middle of the mounting seat 5 to the lower part of the turntable seat plate 1 and is meshed with the inner gear ring 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A hydraulic motor fixing device for an excavator comprises a walking frame and a rotary table base plate (1), wherein the walking frame is arranged below the rotary table base plate (1); an inner gear ring (2) is arranged at the upper part of the walking frame, a hydraulic motor (3) is arranged at the upper part of the turntable seat plate (1), a gear (11) is connected to the lower part of the hydraulic motor (3) in a rotating mode, and the gear (11) is meshed with the inner gear ring (2); the method is characterized in that: be provided with between revolving stage bedplate (1) and hydraulic motor (3) with solid portion (4), it includes mount pad (5) to add solid portion (4), mount pad (5) middle part is provided with through-hole (7), mount pad (5) both sides are provided with fixed plate (6), fixed plate (6) upper portion is provided with backing plate (8), backing plate (8) upper portion is provided with meniscus (9), revolving stage bedplate (1), fixed plate (6), backing plate (8) and meniscus (9) pass through bolt (10) fixed connection.

2. The hydraulic motor fixing device for an excavator according to claim 1, wherein: the hydraulic motor (3) comprises a motor body and a motor seat, wherein the motor body is arranged on the upper portion of the motor seat, and the motor seat is arranged on the upper portion of the mounting seat (5).

3. The hydraulic motor fixing device for an excavator according to claim 2, wherein: the sum of the thickness of the motor seat and the thickness of the mounting seat (5) is equal to the sum of the thickness of the fixing plate (6) and the thickness of the backing plate (8).

4. The hydraulic motor fixing device for an excavator according to claim 3, wherein: the meniscus (9) comprises a meniscus body and a meniscus edge, the meniscus body is arranged above the pad (8), and the meniscus edge covers above the motor base.

5. The hydraulic motor fixing device for an excavator according to claim 1, wherein: the two menisci (9) are arranged in a central symmetry mode by taking the hydraulic motor (3) as an axis.