Lower frame carrying device

Abstract

The utility model discloses a lower vehicle frame carrying device which comprises a walking device, a lifting device, a limiting component and a lower vehicle frame flexible fine positioning mechanism. The walking device comprises a box body and a plurality of walking wheels, and the box body is driven to move through the walking wheels; the lifting device comprises a lifting support and a lifting table top, and the lifting support is connected between the box body and the lifting table top. The limiting component is installed on the lifting table top and limits the lower vehicle frame placed on the lifting table top, and the lower vehicle frame is prevented from rotating in the assembling process. The lower vehicle frame flexible fine positioning mechanism is arranged between the box body and the lifting table top and can position the lifting heights of a plurality of lifting table tops, and each positioning height corresponds to an inverted lower vehicle frame of one model; and after being lifted, the lifting device is used for feeding the inverted lower frame into a turnover machine or taking the inverted lower frame out of the turnover machine. According to the utility model, the problem of limited hoisting and operation space is solved, the operation intensity and potential safety hazards are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a chassis handling device, belonging to the field of excavator assembly technology. Background Technology

[0002] For fixed tilting machines (a type of positioner that only rotates 180° around a slewing bearing in either the forward or reverse direction and has no moving or lifting functions), the workers hoist the lower frame onto the tilting machine, and after the tilting machine tilts, the slewing bearing and support rollers are assembled at fixed points. After assembly, the machine is tilted and hoisted onto the production line. The following problems exist:

[0003] 1. Once the undercarriage frame is placed on the tipper, the lifting gear is difficult to disassemble;

[0004] 2. There is a safety hazard if personnel work within the turning area of ​​the tilting machine;

[0005] 3. When assembling the support rollers, the hydraulic cylinder of the tilting machine blocks the installation of the support roller shims, which poses a risk of pinching fingers. The tightening work space is limited, making the operation difficult and inefficient.

[0006] 4. When tightening the slewing bearing bolts in the tilting state, the torque is large, and there is relative displacement between the tilting machine's clamping arm and the frame, which poses a safety hazard. Summary of the Invention

[0007] To address the aforementioned problems, this utility model provides an undercarriage handling device, which solves the issues of limited hoisting and working space, reduces workload and safety hazards, and improves work efficiency.

[0008] This utility model is achieved according to the following technical solution:

[0009] A chassis handling device, comprising:

[0010] The walking device includes a box and multiple wheels, which drive the box to move.

[0011] The lifting device includes a lifting bracket and a lifting platform, wherein the lifting bracket is connected between the housing and the lifting platform;

[0012] A limiting component is installed on the lifting platform to limit the lower frame placed on the lifting platform and prevent the lower frame from rotating during assembly.

[0013] The flexible precision positioning mechanism for the undercarriage is arranged between the housing and the lifting platform. It can position the lifting height of multiple lifting platforms, and each positioning height corresponds to a model of inverted undercarriage. After lifting, it is used to send the inverted undercarriage into the tilting machine or to remove the inverted undercarriage from the tilting machine.

[0014] In some embodiments, the flexible precision positioning mechanism of the lower frame includes a positioning component I mounted on the housing and a positioning component II mounted on the lifting platform; the positioning component I and the positioning component II have multiple vertically distributed positioning points, each positioning point corresponding to the lifting height of a lifting platform.

[0015] In some embodiments, the positioning component I consists of a bracket I and a metal ring. The bottom of the bracket I is fixed to the housing, and the metal ring is fixed to the top of the bracket I. The positioning component II consists of a bracket II and a plurality of inductive proximity switches. The bracket II is fixed to the lifting platform, and the plurality of inductive proximity switches are installed vertically and at intervals on the bracket II. When the inductive proximity switch corresponding to the pre-lifting height is activated, the lifting bracket drives the lifting platform to rise. When the activated inductive proximity switch rises to align with the metal ring on the bracket I, the lifting bracket stops lifting.

[0016] In some embodiments, the bracket II is provided with a strip groove, the inductive proximity switch passes through the strip groove and is clamped to the bracket II by two nuts, and the position of the inductive proximity switch can be adjusted by loosening the nuts.

[0017] In some embodiments, the lifting support adopts a scissor-type lifting structure, mainly composed of a lifting cylinder and a scissor-type support, which is driven to open or close by the lifting cylinder.

[0018] In some embodiments, the upper surface of the lifting platform is provided with a plurality of inverted T-shaped grooves arranged side by side at preset intervals and extending along the direction of the forward and backward movement of the walking device, and the limiting component is installed in the inverted T-shaped grooves.

[0019] In some embodiments, the limiting component consists of a T-bolt and a pin. The T-bolt is inserted into an inverted T-shaped groove and can slide along the inverted T-shaped groove. The pin is screwed onto the T-bolt and is used to cooperate with the lower frame hole to limit the lower frame.

[0020] In some embodiments, the upper surface of the lifting platform is secured with a polyurethane plate, which is countersunk screws at the point where it contacts the underframe, to prevent damage to the paint of the underframe.

[0021] In some embodiments, the housing is an inverted concave structure; the middle part of the housing is a hollow structure, and the lifting bracket is assembled in the hollow position in the middle of the housing; the plurality of wheels include a front drive wheel and a rear driven wheel, and the front drive wheel is driven by a drive motor.

[0022] In some embodiments, the front drive wheel and the rear driven wheel both have H-plane cross sections for moving on the guide rail.

[0023] The beneficial effects of this utility model are:

[0024] 1. The underframe is hoisted onto the underframe transport device and transported to the tilting machine at a specified height. After the frame is tilted, the underframe transport device connects the frame to the assembly area for slewing bearing and support roller assembly, thus realizing semi-automation of underframe tilting and assembly.

[0025] 2. After the use of this undercarriage handling device, it can replace fixed-point assembly in the turning area of ​​the turning machine, solving the problems of high labor intensity, low efficiency and safety hazards of fixed-point assembly on the turning machine. Attached Figure Description

[0026] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0027] In the attached diagram:

[0028] Figure 1 This is an overall schematic diagram of the undercarriage transport device of this utility model;

[0029] Figure 2 This diagram illustrates the application of the undercarriage handling device of this utility model after the undercarriage is assembled. Figure 1 ;

[0030] Figure 3 This diagram illustrates the application of the undercarriage handling device of this utility model after the undercarriage is assembled. Figure 2 ;

[0031] Figure 4 This diagram illustrates the application of the undercarriage handling device of this utility model after the undercarriage is assembled. Figure 3 ;

[0032] Figure 5 This diagram illustrates the application of the undercarriage handling device of this utility model after the undercarriage is assembled. Figure 4 ;

[0033] Figure 6 This is a schematic diagram of the flexible precision positioning mechanism of the lower frame of this utility model (a is view 1, b is view 2).

[0034] Attached diagram labels: 1-box body, 2-lifting bracket, 3-lower frame flexible precision positioning mechanism, 4-walking wheel, 5-lifting platform, 6-limiting component, 7-bracket I, 8-bracket II, 9-inductive proximity switch.

[0035] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0037] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, an undercarriage handling device includes a traveling device, a lifting device, a limiting component 6, and an undercarriage flexible precision positioning mechanism 3. The traveling device includes a housing 1 and multiple traveling wheels 4, which drive the housing 1 to move. The lifting device includes a lifting bracket 2 and a lifting platform 5, with the lifting bracket 2 connected between the housing 1 and the lifting platform 5. The limiting component 6 is installed on the lifting platform 5 and limits the undercarriage placed on the lifting platform 5 to prevent the undercarriage from rotating during assembly. The undercarriage flexible precision positioning mechanism 3 is arranged between the housing 1 and the lifting platform 5 and can position the lifting height of multiple lifting platforms 5, with each positioning height corresponding to a model of inverted undercarriage. After lifting, it is used to send the inverted undercarriage into a tilting machine or remove the inverted undercarriage from the tilting machine. This utility model solves the problems of hoisting and limited working space by designing an undercarriage handling device, reducing the intensity of work and safety hazards, and improving work efficiency.

[0040] The following provides a further explanation of the specific scheme for the aforementioned flexible precision positioning mechanism for the lower frame.

[0041] like Figure 6 As shown, the flexible precision positioning mechanism 3 of the lower frame includes a positioning component I installed on the housing 1 and a positioning component II installed on the lifting platform 5; there are multiple positioning points distributed vertically between the positioning component I and the positioning component II, and each positioning point corresponds to a lifting height of the lifting platform 5.

[0042] Further options, such as Figure 6 As shown, positioning component I consists of bracket I7 and a metal ring. The bottom of bracket I7 is fixed to the housing 1, and the metal ring is fixed to the top of bracket I7. Positioning component II consists of bracket II8 and multiple inductive proximity switches 9. Bracket II8 is fixed to the lifting platform 5, and multiple inductive proximity switches 9 are installed vertically and at intervals on bracket II8. When the inductive proximity switch 9 corresponding to the pre-lifting height is activated, the lifting bracket 2 drives the lifting platform 5 to rise. When the activated inductive proximity switch 9 rises to align with the metal ring on bracket I7, the lifting bracket 2 stops lifting.

[0043] Further options, such as Figure 6 As shown, the bracket II8 is provided with a strip groove, the inductive proximity switch 9 is inserted into the strip groove and clamped to the bracket II8 by two nuts, and the position of the inductive proximity switch 9 can be adjusted by loosening the nuts.

[0044] The following provides a further explanation of the specific scheme for the aforementioned lifting support.

[0045] like Figure 5 As shown, the lifting support 2 adopts a scissor-type lifting structure, which mainly consists of a lifting cylinder and a scissor-type support. The lifting cylinder drives the scissor-type support to open or close.

[0046] Further options, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the upper surface of the lifting platform 5 is provided with a plurality of inverted T-shaped grooves arranged side by side at preset intervals and extending along the direction of the forward and backward movement of the walking device, and the limiting component 6 is installed in the inverted T-shaped grooves.

[0047] The following provides a further explanation of the specific design of the aforementioned limiting component.

[0048] like Figure 1As shown, the limiting component 6 consists of a T-bolt and a pin. The T-bolt is inserted into the inverted T-shaped groove and can slide along the inverted T-shaped groove. The pin is screwed onto the T-bolt and is used to cooperate with the hole of the lower frame to limit the lower frame.

[0049] In a further embodiment, the upper surface of the lifting platform 5 is secured with a polyurethane plate at the point of contact with the underframe using countersunk screws to prevent damage to the paint surface of the underframe.

[0050] The following provides a further explanation of the specific design of the aforementioned walking device.

[0051] like Figure 2 As shown, the box body 1 has an inverted concave structure; the middle part of the box body 1 has a hollow structure, and the lifting bracket 2 is assembled in the hollow position in the middle of the box body 1; the multiple walking wheels 2 include front drive wheels and rear driven wheels. The front drive wheels are driven by a drive motor and have forward and backward functions, which can realize the unloading of the frame between the fixed tilting machine and the fixed tilting machine.

[0052] Further options, such as Figure 2 As shown, the cross-sections of both the front drive wheel and the rear driven wheel are H-planes, used for movement on the guide rail.

[0053] In summary, this utility model provides a lower frame transport device that achieves the following functions and effects:

[0054] 1. The underframe is hoisted onto the underframe transport device and transported to the tilting machine at a specified height. After the frame is tilted, the underframe transport device connects the frame to the assembly area for slewing bearing and support roller assembly, thus realizing semi-automation of underframe tilting and assembly.

[0055] 2. After the use of this undercarriage handling device, it can replace fixed-point assembly in the turning area of ​​the turning machine, solving the problems of high labor intensity, low efficiency and safety hazards of fixed-point assembly on the turning machine.

[0056] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0057] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0058] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A chassis handling device, characterized in that, include: The walking device includes a box and multiple wheels, which drive the box to move. The lifting device includes a lifting bracket and a lifting platform, wherein the lifting bracket is connected between the housing and the lifting platform; A limiting component is installed on the lifting platform to limit the lower frame placed on the lifting platform and prevent the lower frame from rotating during assembly. The flexible precision positioning mechanism for the undercarriage is arranged between the housing and the lifting platform. It can position the lifting height of multiple lifting platforms, and each positioning height corresponds to a model of inverted undercarriage. After lifting, it is used to send the inverted undercarriage into the tilting machine or to remove the inverted undercarriage from the tilting machine.

2. The undercarriage handling device according to claim 1, characterized in that: The flexible precision positioning mechanism of the lower frame includes a positioning component I installed on the housing and a positioning component II installed on the lifting platform. The positioning component I and positioning component II have multiple vertically distributed positioning points, each positioning point corresponding to the lifting height of a lifting platform.

3. The undercarriage handling device according to claim 2, characterized in that: The positioning component I consists of a bracket I and a metal ring. The bottom of the bracket I is fixed to the box body, and the metal ring is fixed to the top of the bracket I. The positioning component II consists of a bracket II and multiple inductive proximity switches. The bracket II is fixed on the lifting platform, and the multiple inductive proximity switches are installed on the bracket II at intervals. When the inductive proximity switch corresponding to the pre-lifting height is activated, the lifting bracket drives the lifting platform to rise. When the activated inductive proximity switch rises to align with the metal ring on the bracket I, the lifting bracket stops lifting.

4. The undercarriage handling device according to claim 3, characterized in that: The bracket II is provided with a strip groove, the inductive proximity switch is inserted into the strip groove and clamped to the bracket II by two nuts, and the position of the inductive proximity switch can be adjusted by loosening the nuts.

5. The undercarriage handling device according to claim 1, characterized in that: The lifting support adopts a scissor-type lifting structure, which mainly consists of a lifting cylinder and a scissor-type support. The lifting cylinder drives the scissor-type support to open or close.

6. The undercarriage handling device according to claim 1, characterized in that: The upper surface of the lifting platform is provided with a plurality of inverted T-shaped grooves arranged side by side at preset intervals and extending along the direction of the forward and backward movement of the walking device, and the limiting component is installed in the inverted T-shaped grooves.

7. The undercarriage handling device according to claim 6, characterized in that: The limiting component consists of a T-bolt and a pin. The T-bolt is inserted into an inverted T-shaped groove and can slide along the inverted T-shaped groove. The pin is screwed onto the T-bolt and is used to cooperate with the hole in the lower frame to limit the movement of the lower frame.

8. The undercarriage handling device according to claim 1, characterized in that: The upper surface of the lifting platform is fixed with a polyurethane board at the point where it contacts the underframe, using countersunk screws to prevent damage to the paint of the underframe.

9. The undercarriage handling device according to claim 1, characterized in that: The box body has an overall concave structure; the middle part of the box body has a hollow structure, and the lifting bracket is assembled in the hollow position in the middle of the box body; the multiple walking wheels include front drive wheels and rear driven wheels, and the front drive wheels are driven by a drive motor.

10. The undercarriage handling device according to claim 9, characterized in that: Both the front drive wheel and the rear driven wheel have H-shaped cross sections for moving on the guide rail.

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