Foundation pit earth excavation device

Abstract

The utility model relates to the technical field of earthwork excavation accessories, in particular to a foundation pit earthwork excavation device which comprises a base assembly with power, crawler wheel sets connected with transmission shafts on the base assembly are installed on the two sides of the base assembly respectively, and a translation mechanism is installed on the top of the base assembly. A circumferential driving part is installed at the working end of the translation mechanism, an overturning seat is fixedly installed at the left end of the circumferential driving part, a lifting part is installed at the bottom of the overturning seat, a rotary excavating mechanism is installed at the bottom of the lifting part, and the rotary excavating mechanism is used for achieving circumferential swing along with the overturning seat. And a counterweight mechanism is mounted at the top of the overturning seat. When a ground foundation pit is excavated, pit drilling type excavation can be rapidly achieved by means of cooperation of the lifting piece and operation of the rotary excavating mechanism, the rotary excavating device can be specially used for rotary excavating of soft foundation pit earthwork, it is effectively guaranteed that the rotary excavating speed and the rotary excavating depth are controlled, and smooth excavation of a small foundation pit is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to earthwork excavation accessory technology field especially a foundation pit earthwork excavation device. BACKGROUND

[0002] The foundation pit earthwork excavation generally adopts the way of layered segmented excavation, and the excavation depth of each layer is not too large when carrying out layered excavation, and the length of each section is determined according to the space size and construction conditions, and the principle is to facilitate construction and ensure safety, and at present, the excavation operation of the foundation pit soil layer mainly relies on the shovel excavating equipment for excavation, for example, the equipment such as the backhoe excavator and the shovel excavator.

[0003] Through the search, the patent document with the patent application number CN201921126260.8 discloses a multi-station excavating device with a loading bucket for a civil foundation pit, which mainly comprises an upper rotating table, a supporting column and a camera; the upper rotating table left side and rear part included angle upper end face is fixedly connected with a camera group, and the camera group is composed of a fixed base, a supporting column and a camera; the bucket is rotatably connected to the excavating device bucket rod through a rotating shaft, and the bucket left and right sides blade upper part is connected with an arch-shaped wear-resistant block through a hexagonal bolt; the bucket lower end face is fixedly connected with a conical wear-resistant block.

[0004] It can be seen that the above-mentioned excavating device is actually also a kind of excavator structure, which adopts swing arm control excavator operation to realize excavation when excavating, but this structure is generally suitable for the excavation of foundation pit in large space environment, and is not suitable for small size foundation pit excavation operation in narrow space;The overall size of the above-mentioned excavating equipment is large, and the space required by the swing range is large when excavating, so there is a problem of difficult turnover in small space.

[0005] Based on this, the utility model optimizes and improves the problems existing in the small size foundation pit earthwork excavation construction technology in the existing narrow space, and hereby puts forward a new structure of foundation pit earthwork excavation device to better solve the problems existing in the prior art. SUMMARY

[0006] In order to solve one of the above technical problems, the technical scheme adopted by the utility model is: a foundation pit earthwork excavation device, comprising a power-driven base assembly, a track wheel group connected with the transmission shaft on the two sides of the base assembly, a translation mechanism installed on the top of the base assembly, a circumferential driving member installed on the working end of the translation mechanism, a turnover seat fixedly installed on the left end of the circumferential driving member, a lifting member installed on the bottom of the turnover seat, a rotary digging mechanism installed on the bottom of the lifting member, the rotary digging mechanism is used for following the turnover seat to realize circumferential swing, and a counterweight mechanism is installed on the top of the turnover seat.

[0007] Preferably in any of the above solutions, the circumferential driving member comprises a torque motor, the right end of the motor housing of the torque motor is fixed to the left end of the translation mechanism, and the left end of the circumferential driving member is fixed to the turnover seat.

[0008] Preferably in any of the above solutions, the translation mechanism comprises two horizontally arranged translation cylinders fixed to the top of the base assembly, the two translation cylinders are arranged along the width direction of the base assembly, and the two translation cylinders are in synchronous extension and contraction state during operation, and the left end of each translation cylinder is fixed to the right side wall of the turnover seat.

[0009] Preferably in any of the above solutions, the lifting member comprises two vertically arranged lifting cylinders, the top of each lifting cylinder is fixed to the bottom of the turnover seat, and the bottom of each lifting cylinder is fixed to the top of the rotary digging mechanism, and the two lifting cylinders are in synchronous lifting state during operation.

[0010] Preferably in any of the above solutions, the rotary digging mechanism comprises a rotary motor, the top of the rotary motor is fixed to the bottom of the piston rod of the two lifting cylinders, the bottom of the output shaft of the rotary motor is fixed to the top of the rotary digging mechanism, and a digging member is fixed to the bottom of the output shaft of the rotary motor.

[0011] Preferably in any of the above solutions, the digging member comprises a connecting lug seat fixed to the bottom of the output shaft of the rotary motor, a side swing member is symmetrically hinged to the left and right sides of the connecting lug seat, a swing support control member is fixed to the bottom center of the connecting lug seat between the two side swing members, the bottom of the swing support control member is hingedly connected to the lug seat on the inner side wall of the middle part of the side swing member at the corresponding position, and the swing support control member controls the relative swing amplitude of the two side swing members through lifting.

[0012] Preferably in any of the above solutions, the side swing member comprises a vertically arranged side swing arm, the upper end of the side swing arm is movably sleeved to the outside of the hinge shaft on the corresponding side of the connecting lug seat through the shaft hole, and a plurality of rotary digging teeth are fixed to the outer side wall of the side swing arm along the up-down direction in sequence.

[0013] Preferably in any of the above solutions, the swing support control member comprises a vertically arranged control position cylinder, the top of the control position cylinder is fixed to the center bottom of the connecting lug seat, and a connecting short rod is movably hinged to the bottom of the piston rod of the control position cylinder on the left and right sides.

[0014] Preferably in any of the above solutions, the counterweight mechanism comprises a center stud fixed vertically at the top center of the turnover seat, an outer thread is arranged on the outer sidewall of the center stud, a plurality of counterweight discs are sequentially sleeved on the outer sidewall of the center stud from top to bottom, and a compression nut is screwed on the outer threaded sidewall of the center stud at the top of the uppermost counterweight disc.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1、The foundation pit earthwork excavation device in the utility model realizes ground walking and supporting by relying on the caterpillar wheel groups on both sides, can be effectively applied to various road conditions, and has high overall versatility; in addition, when a foundation pit in a narrow space is excavated, the earthwork can be quickly rotated, and the rotation effect is effectively ensured.

[0017] 2、When a ground foundation pit is excavated, the lifting piece cooperates with the operation of the rotary digging mechanism to quickly realize pit drilling type excavation, can be used for rotary digging of soft foundation pit earthwork, effectively ensures the rotary digging speed and rotary digging depth, and realizes smooth excavation of a small foundation pit.

[0018] 3、When excavating, the circumferential driving piece controls the side inclination angle of the turnover seat and the lifting piece and the rotary digging mechanism thereon, so that the entire rotary digging mechanism can excavate the ground of the foundation pit at a required angle, the excavation effect is ensured, and vertical rotary digging or lateral rotary digging is realized.

[0019] 4、The control rotary digging mechanism in the utility model can control the size of the lateral opening, effectively control different rotary digging holes as required, and effectively improve the size control effect of the rotary pit. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn according to the actual scale.

[0021] Figure 1 It is a structural schematic view of the utility model.

[0022] Figure 2 It is a partial enlarged structural schematic view of the working end of the utility model.

[0023] Figure 3 It is a top view structural schematic view of the base assembly of the utility model.

[0024] Figure 4The utility model discloses a three-dimensional structure schematic view of base assembly.

[0025] In the figure, 1, base assembly;2, track wheel group;3, turnover seat;4, torsion motor;5, translation cylinder;6, lifting cylinder 7, rotating motor;8, connecting lug seat;9, hinged axle part;10, rotary digging tooth;11, position control cylinder;12, connecting short rod;13, center stud;14, counterweight disc;15, compression nut;16, side swing arm. DETAILED DESCRIPTION

[0026] The utility model discloses technical scheme's embodiment of the utility model will be described in detail below with the figure. The following embodiment is only for more clearly showing the technical scheme of the utility model, therefore only as example, and can not be limited by this to the protection scope of the utility model. The utility model concrete structure is as shown in Figures 1-4

[0027] Embodiment 1: a foundation pit earthwork excavation device, including the base assembly 1 with power, the track wheel group 2 that is connected with the transmission shaft on its two sides is installed respectively with power, the translation mechanism is installed on the top of base assembly 1, the circumferential drive is installed on the working end of translation mechanism, the turnover seat 3 is fixedly installed on the left end of circumferential drive, the lifting piece is installed on the bottom of turnover seat 3, the rotary digging mechanism is installed on the bottom of lifting piece, and the rotary digging mechanism is used to follow turnover seat 3 and realize circumferential swing, and the counterweight mechanism is installed on the top of turnover seat 3.

[0028] The foundation pit earthwork excavation device in the utility model can realize the advance or retreat of the whole device under the driving action of the base assembly 1 with power and power supply when working, when advancing to the narrow construction site, the translation mechanism is controlled to stretch forward and drive the circumferential drive, turnover seat 3, lifting piece, rotary digging mechanism and counterweight mechanism on the front end to move to the required position, since the whole working part of the device is at the bottom of the base assembly 1, the overall height dimension is smaller, and the device can be better applied to small space operation.

[0029] When the rotary digging operation is needed, the circumferential drive is started to control the turnover of turnover seat 3, and drive the lifting piece and rotary digging mechanism at the bottom of turnover seat 3 to be at the vertical downward angle, at this time, the lifting piece is controlled to stretch downward, and the rotary digging mechanism is controlled to move downward, when the bottom of the rotary digging mechanism contacts or approaches the ground, the rotary digging mechanism is controlled to operate at a high speed, and the foundation pit earthwork can be quickly rotated and excavated under the descending thrust of the lifting piece, after the rotary digging is completed, the rotary digging mechanism is controlled to reverse and the lifting piece is controlled to lift to realize the retreat of the tool, at this time, the soil inside the foundation pit can be transferred by cooperating with the external earthmoving process.

[0030] ​In any of the above solutions, preferably, the circumferential driving member comprises a torque motor 4, the right end of the motor housing of the torque motor 4 is fixed to the left end of the translation mechanism, and the left end of the circumferential driving member is fixed to the turnover seat 3.

[0031] When the circumferential driving member works, the turnover seat 3 fixed to the motor shaft end of the torque motor 4 rotates by demand to achieve rotation positioning within a certain angle.

[0032] In any of the above solutions, preferably, the translation mechanism comprises two translation cylinders 5 arranged horizontally and fixed to the top of the base assembly 1, the two translation cylinders 5 are arranged in the width direction of the base assembly 1, and the two translation cylinders 5 are in a synchronous extension and contraction state when working, and the left end of each translation cylinder 5 is fixedly installed on the right side wall of the turnover seat 3.

[0033] When the translation mechanism works, the synchronous extension and contraction of the two translation cylinders 5 can drive the operation of the circumferential driving member at the front end, so as to achieve the purpose of fast positioning and horizontal displacement.

[0034] In any of the above solutions, preferably, the lifting member comprises two lifting cylinders 6 arranged vertically, the top of each lifting cylinder 6 is fixedly installed on the bottom of the turnover seat 3, and the bottom of each lifting cylinder 6 is fixed to the top of the rotary digging mechanism.

[0035] When the lifting member works, the synchronous extension and contraction of the two lifting cylinders 6 can realize the synchronous lifting control of the rotary digging mechanism at the bottom of the two piston rods, effectively controlling the downward rotary digging thrust and the rotary digging depth when rotary digging.

[0036] In any of the above solutions, preferably, the rotary digging mechanism comprises a rotary motor 7, the top of the rotary motor 7 is fixed to the bottom of the piston rod of the two lifting cylinders 6, the bottom of the output shaft of the rotary motor 7 is fixed to the top of the rotary digging mechanism, and a digging member is fixedly installed at the bottom of the output shaft of the rotary motor 7.

[0037] When the rotary digging mechanism starts, the rotary motor 7 rotates to drive the current digging member to rotate and follow the lifting member to move downward, thereby achieving the purpose of rotary digging soil while descending.

[0038] In any of the above schemes, preferably, the digging member comprises a connecting lug 8 fixedly installed at the bottom of the output shaft of the rotary motor 7, and a side swing member is symmetrically hinged at the left and right sides of the connecting lug 8, respectively, and a swing support control member is fixedly installed at the bottom center of the connecting lug 8 between the two side swing members, the bottom sides of the swing support control member are movably hinged to the lug on the inner side wall of the middle part of the side swing member at the corresponding position, and the swing support control member controls the relative swing amplitude of the two side swing members by lifting.

[0039] The digging member enables the entire connecting lug 8 to follow the lifting of the rotary motor 7 to rotate, and the swing support control member and the side swing members on both sides can be driven to rotate around the fixed shaft during the rotation of the connecting lug 8, and the side swing members can rely on the rotation to quickly excavate the soft soil layer.

[0040] When the excavation of holes with different inner diameters is required, the current swing support control member drives the opposite ends of the side swing members on both sides to move away from or close to each other by lifting.

[0041] In any of the above schemes, preferably, the side swing member comprises a vertically arranged side swing arm 16, the upper end of the side swing arm 16 is movably sleeved outside the hinge shaft of the corresponding side of the connecting lug 8 through the shaft hole, and a plurality of rotary digging teeth 10 are fixedly installed on the outer side wall of the side swing arm 16 in sequence and at intervals along the up-down direction.

[0042] The side swing member in the utility model can complete the circumferential rapid rotary excavation of the soil layer around the entire rotary motor 7 in different inclined states, and each rotary digging tooth 10 can be used as a rotary excavation cutter to realize rotary cutting of the soil layer during rotary excavation.

[0043] Embodiment 2: Compared with embodiment 1, the difference lies in that the following technical features are further included:

[0044] In any of the above schemes, preferably, the swing support control member comprises a vertically arranged control position cylinder 11, the top of the control position cylinder 11 is fixedly installed at the center bottom of the connecting lug 8, and the left and right sides of the bottom of the piston rod of the control position cylinder 11 are movably hinged with a connecting short rod 12, respectively, and the lower ends of the two connecting short rods 12 are movably hinged to the lug on the inner side wall of the middle part of the side swing arm 16 at the corresponding position.

[0045] During the operation of the swing support control member, the extension and retraction of the piston rod of the control position cylinder 11 can drive the swing of the two connecting short rods 12 hinged thereto and the angle of the side support, so as to control the swing amplitude of the two side swing arms 16 hinged with the two connecting short rods 12, and further control the drilling requirements of different inner diameters.

[0046] Preferably, in any of the above solutions, the counterweight mechanism comprises a center stud 13 vertically fixed at the top center of the turnover seat 3, an outer thread is arranged on the outer sidewall of the center stud 13, a plurality of counterweight discs 14 are sequentially sleeved on the outer sidewall of the center stud 13 from top to bottom, and a compression nut 15 is screwed on the outer threaded sidewall of the center stud 13 at the top of the uppermost counterweight disc 14.

[0047] The entire counterweight mechanism mainly cooperates with the rotary digging mechanism at the opposite end to realize relative stability during operation following the circumferential driving member, thereby reducing the probability of imbalance during rotation.

[0048] In addition, different counterweight effects can be achieved by replacing counterweight discs 14 of different numbers or sizes. When replacing the counterweight discs 14, only the compression nut 15 needs to be quickly rotated to quickly replace each counterweight disc 14. After replacement, the compression nut 15 is screwed to lock each counterweight disc 14, ensuring the relative stability of the counterweight disc 14 during operation.

[0049] Specific working principle: When the device is working, the entire track wheel set 2 can be controlled to advance or retreat the entire device under the driving action of the base assembly 1 with power and power supply.

[0050] When advancing to a narrow site to be constructed, the translation mechanism is controlled to stretch forward and drive the circumferential driving member, turnover seat 3, lifting member, rotary digging mechanism, and counterweight mechanism at the front end to move to the desired position. Since the entire working part of the device is at the bottom of the base assembly 1, the overall height dimension is small, which can better adapt to small space operation.

[0051] When rotary digging operation is needed, the circumferential driving member is turned on to control the turnover seat 3 to turn over and drive the lifting member and rotary digging mechanism at the bottom of the turnover seat 3 to be vertically downward. At this time, the lifting member is controlled to stretch downward, and the rotary digging mechanism is controlled to move downward. When the bottom of the rotary digging mechanism contacts or approaches the ground, the rotary digging mechanism is controlled to operate at a high level.

[0052] Specifically, during the operation of the rotary digging mechanism, the lifting member can complete rapid rotary excavation of the foundation pit under the downward thrust of the lifting member. After rotary excavation is completed, the rotary digging mechanism is controlled to reverse and the lifting member is controlled to lift to realize tool withdrawal. At this time, the soil inside the foundation pit is transferred by cooperating with the external earthmoving process.

[0053] As can be seen, the whole foundation pit earth excavation device relies on the two side track wheel groups 2 to realize ground walking and support, can be effectively applied to various road conditions ground use, and has strong overall versatility; in addition, when the foundation pit excavation in a narrow space is carried out, the rotary earthwork can be quickly realized, and the rotary digging effect is effectively guaranteed; when the ground foundation pit is excavated, the drilling type excavation can be quickly realized by relying on the operation of the lifting piece in cooperation with the rotary digging mechanism, the rotary digging of the soft foundation pit earthwork can be specialized, the rotary digging speed and rotary digging depth are effectively guaranteed, the smooth excavation of the small foundation pit is realized; when excavating, the lateral inclination angle of the overturning seat 3 and the lifting piece and the rotary digging mechanism thereon can be controlled by the circumferential driving piece, so that the whole rotary digging mechanism can be excavated to the foundation pit ground at the required angle, the excavation effect is guaranteed, and vertical rotary digging or lateral rotary digging is realized. In the utility model, the size of the lateral opening of the rotary digging mechanism can be controlled by controlling the rotary digging mechanism, the control of the rotary digging hole with different inner diameters is effectively realized as needed, and the size control effect of the rotary drilling is effectively improved.

[0054] The above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can still be modified, or part or all of the technical features can be replaced; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model; any alternative improvement or change made by those skilled in the art to the embodiments of the utility model falls within the protection scope of the utility model.

[0055] The parts not described in the utility model are the known technology of those skilled in the art.

Claims

1. A foundation earth excavation device comprising a powered base assembly, two track wheel assemblies are mounted on both sides of the base assembly respectively, and the track wheel assemblies are connected with the transmission shafts on the base assembly, characterized in that: A translation mechanism is installed on the top of the base assembly, a circumferential driving member is installed on the working end of the translation mechanism, a turnover seat is fixedly installed on the left end of the circumferential driving member, a lifting member is installed on the bottom of the turnover seat, and a rotary digging mechanism is installed on the bottom of the lifting member, which is used to follow the turnover seat to realize circumferential swinging, and a counterweight mechanism is installed on the top of the turnover seat.

2. The foundation earth excavation device according to claim 1, characterized in that: The circumferential driving member comprises a torsion motor, the motor shell right end of the torsion motor is fixedly installed on the left end of the translation mechanism, and the left end of the circumferential driving member is fixedly connected with the turnover seat.

3. The foundation earth excavation device according to claim 2, characterized in that: The translation mechanism comprises two horizontally arranged and fixedly installed translation cylinders on the top of the base assembly, the two translation cylinders are arranged at intervals along the width direction of the base assembly, and the two translation cylinders are in synchronous extension and contraction state during work, and the left end of each translation cylinder is fixedly installed on the right side wall of the turnover seat.

4. The foundation earth excavation device according to claim 3, characterized in that: The lifting member comprises two vertically arranged lifting cylinders, the top of each lifting cylinder is fixedly installed on the bottom of the turnover seat, the bottom of each lifting cylinder is fixedly installed on the top of the rotary digging mechanism, and the two lifting cylinders are in synchronous lifting state during work.

5. The device for excavating soil according to claim 4, characterized in that: The rotary digging mechanism comprises a rotary motor, the top of the rotary motor is fixedly installed on the bottom of the piston rod of the two lifting cylinders, the bottom of the output shaft of the rotary motor is fixedly installed on the top of the rotary digging mechanism, and a digging member is fixedly installed on the bottom of the output shaft of the rotary motor.

6. The foundation earth excavation device according to claim 5, characterized in that: The digging member comprises a connecting lug seat fixedly installed on the bottom of the output shaft of the rotary motor, side swinging members are symmetrically hinged on the left and right sides of the connecting lug seat, a swing support control member is fixedly installed on the bottom center of the connecting lug seat between the two side swinging members, the bottom sides of the swing support control member are movably hinged with the lug seats on the inner side walls of the middle parts of the side swinging members at the corresponding positions, and the swing support control member controls the relative swinging amplitude of the two side swinging members through lifting.

7. The foundation earth excavation device according to claim 6, characterized in that: The side swinging member comprises a vertically arranged side swinging arm, the upper end of the side swinging arm is movably sleeved on the outside of the hinge shaft on the corresponding side of the connecting lug seat, and a plurality of rotary digging teeth are fixedly installed on the outer side wall of the side swinging arm at intervals along the up-down direction.

8. The device according to claim 7, characterized in that: The swing support control member comprises a vertically arranged control position cylinder, the top of the control position cylinder is fixedly installed on the center bottom of the connecting lug seat, and connecting short rods are movably hinged on the bottom sides of the piston rod of the control position cylinder.

9. The device according to claim 8, characterized in that: The counterweight mechanism comprises a center stud vertically fixed on the top center of the turnover seat, an external thread is arranged on the outer side wall of the center stud, a plurality of mutually superimposed counterweight discs are sleeved on the outer side wall of the center stud from top to bottom, and a compression nut is screwed on the external thread side wall of the center stud on the top of the uppermost counterweight disc.

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