Rubber belt track assembly tool

Abstract

The utility model discloses a rubber track assembly tool which comprises a bottom plate, a lifting platform, a clamping device, two transverse sliding trolleys and two pinch bar assemblies. The lifting platform is installed in the middle area of the top face of the bottom plate and used for supporting the lower frame to move up and down. The clamping devices are respectively mounted on the lifting platform on the two sides of the lower frame in the longitudinal direction, and are used for downwards pressing the lower frame so as to fix the lower frame on the lifting platform; the two transverse sliding trolleys are movably connected to the portions, located on the two sides of the lower vehicle frame in the transverse direction, of the bottom plate correspondingly and used for conveying the rubber track into the lower vehicle frame. The two pinch bar assemblies are installed on the top face of the bottom plate and close to the front portion of the lower vehicle frame in the longitudinal direction, each pinch bar assembly corresponds to one rubber crawler belt and is used for prying the rubber crawler belts inwards and upwards, and inner tooth grooves of the rubber crawler belts are clamped into the outer edges of the guide wheels. The excavator rubber track assembling device can replace manpower to assemble the excavator rubber track, reduces personnel allocation, improves assembling efficiency, and reduces labor intensity and safety risks.

Description

Technical Field

[0001] This utility model relates to a rubber track assembly fixture, which is particularly suitable for rubber track assembly in the excavator industry and belongs to the field of excavator assembly technology. Background Technology

[0002] Rubber tracks are one-piece tracks, which have a certain degree of flexibility but limited longitudinal tensile strength. When installing rubber tracks, the inner toothed grooves must simultaneously engage with the idler and drive wheels located at the front and rear ends of the excavator's underframe wheel system. Once one side of the track's toothed groove is engaged with the drive wheel, the other side's toothed groove, due to the limited longitudinal tensile strength of the track, becomes difficult to engage with the outer edge of the idler wheel.

[0003] Currently, excavator rubber tracks are mainly assembled manually with the help of tools and equipment such as crowbars and overhead cranes. The overhead crane or tooling is used to lift the longitudinal beam of the lower frame, and then multiple people lift the rubber track and attach one end to the drive wheel. Finally, the rubber track is pried at multiple points with a crowbar so that its inner tooth grooves are engaged with the outer edge of the idler wheel.

[0004] The existing technical solutions have the following problems: 1. The tracks are moved manually during operation, which is labor-intensive; 2. The rubber tracks need to be pried at multiple points with crowbars, which requires multiple people to work together, making the operation difficult and inefficient; 3. The underframe is not completely fixed, and the underframe is prone to shaking during assembly, which may lead to safety problems such as personnel falling and crowbars losing their strength.

[0005] Therefore, the installation of excavator rubber tracks is quite complex, usually requiring multiple people to work together, which is time-consuming and labor-intensive. There is an urgent need to research a power installation device for excavator rubber tracks to solve the technical problem of its difficult installation. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this utility model provides a rubber track assembly fixture that uses a power unit to replace manual assembly: The fixture utilizes a lifting platform and matching clamps to lift the bottom of the lower frame longitudinal beam off the ground and fix it to the lifting platform; a dedicated rubber track lifting device and lateral sliding trolleys on both sides of the lifting platform enable the track to move vertically and laterally; an external hydraulic pump station drives the travel motor, thereby rotating the rubber track; and a hydraulically driven pry bar replaces a manual pry bar to pry the rubber track, causing the inner tooth grooves of the rubber track to engage with the outer edge of the guide wheel.

[0007] This utility model is achieved according to the following technical solution:

[0008] A rubber track assembly fixture, comprising:

[0009] Base plate;

[0010] A lifting platform is installed in the middle area of ​​the top surface of the base plate to support the vertical movement of the lower frame;

[0011] Clamping devices are installed on lifting platforms located on both sides of the lower frame in the longitudinal direction, and are used to press the lower frame downward to fix it on the lifting platform;

[0012] Two lateral sliding trolleys are movably connected to the base plates on both sides of the lower frame in the lateral direction, and are used to transport the rubber tracks onto the lower frame;

[0013] Two pry bar assemblies are installed on the top surface of the base plate near the front of the lower frame in the longitudinal direction, and each pry bar assembly corresponds to a rubber track. They are used to pry the rubber track inward and upward so that its inner tooth groove engages with the outer edge of the guide wheel.

[0014] In some embodiments, the lifting platform is a scissor lift structure, and the lifting platform moves up and down by extending and retracting the internal lifting cylinder.

[0015] In some embodiments, the top surface of the lifting platform is fixed with multiple polyurethane panels to prevent the lifting platform from bumping into the surface of the undercarriage frame.

[0016] In some embodiments, a vertically extending guide frame is fixed on each of the two sides of the top surface of the base plate near the longitudinal direction of the lifting platform, and a plurality of guide wheels are installed on the two side surfaces of the lifting platform near the two guide frames, and the guide wheels are in rolling cooperation with the guide frames.

[0017] In some embodiments, a clamping device located at the front of the lifting platform is fixed to it, and a clamping device located at the rear of the lifting platform is slidably connected to it to accommodate lower frames of different sizes.

[0018] In some embodiments, the clamping device includes:

[0019] The base is fixed to the lifting platform or slidably connected to the guide groove on the lifting platform;

[0020] A threaded rod, the bottom of which is fixed to the base and extends vertically upward therefrom;

[0021] The lower support claw is threadedly mounted on the threaded rod.

[0022] The upper pressure claw is fitted onto the threaded rod with a clearance fit.

[0023] A locking nut is screwed into the threaded rod located above the upper pressure claw. When the upper pressure claw is pressed against the lower frame, the upper pressure claw is fixed to the threaded rod by the locking nut and the lower support claw.

[0024] In some embodiments, the crowbar assembly includes:

[0025] An installation plate, fixed on the bottom plate, and provided with a chute in the horizontal direction on the installation plate;

[0026] A hinge seat with two hinge points, slidably connected on the chute;

[0027] A telescopic oil cylinder, one end of which is hinged on the installation plate, and the other end is connected to a hinge point on the hinge seat;

[0028] A crowbar, one end of which is hinged on the other hinge point on the hinge seat, and the other end catches the outer edge of the rubber track.

[0029] In some embodiments, the crowbar is composed of a long rod and a "C"-shaped clamping structure located at the top of the long rod; a support rod is fixed on the hinge seat, and an inclined upward notch is provided on the support rod. The middle area of the long rod is inserted into the notch, and a screw is fastened at the notch to limit the long rod; the bottom end of the long rod is hinged on the hinge seat.

[0030] In some embodiments, the bottom plate is provided with a plurality of hoisting holes and / or forklift holes for transporting the rubber track assembly tooling; the bottom plate is further provided with a guiding groove for the rollers of the horizontal sliding trolley to roll horizontally inside.

[0031] In some embodiments, a hydraulic pump station is further included, which is used to drive the oil cylinder of the lifting platform, the oil cylinder of the crowbar assembly, and the traveling motor on the lower frame.

[0032] Advantages of the present utility model:

[0033] The present utility model utilizes power devices such as a lifting platform, a crowbar, and a traveling motor to simulate multiple composite actions of manually assembling a rubber track, replaces manual labor to assemble the rubber track of an excavator, reduces the personnel configuration, improves the assembly efficiency, and reduces the labor intensity and safety risks. Description of the Drawings

[0034] The drawings, as a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an improper limitation to the present utility model. Obviously, the drawings in the following description are only some embodiments, and for those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0035] In the drawings:

[0036] Figure 1 is an overall schematic diagram of the rubber track assembly tooling of the present utility model;

[0037] Figure 2This is a schematic diagram illustrating the application of the rubber track assembly tooling of this utility model;

[0038] Figure 3 This is a schematic diagram showing the connection between the lifting platform, guide frame, and clamping device of this utility model;

[0039] Figure 4 This is a schematic diagram of the clamping device of this utility model;

[0040] Figure 5 This is a schematic diagram of the crowbar assembly of this utility model.

[0041] Attached diagram labels: 1-Base plate, 2-Lifting platform, 3-Guide frame, 4-Clamping device, 5-Transverse sliding trolley, 6-Pry bar assembly, 7-Hydraulic pump station, 8-Undercarriage frame, 9-Rubber track; 21-Polyurethane plate, 31-Guide wheel, 41-Base, 42-Threaded rod, 43-Upper pressure claw, 44-Lower support claw, 45-Locking nut, 61-Mounting plate, 62-Hinge seat, 63-Telescopic cylinder, 64-Pry bar, 65-Support rod.

[0042] 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

[0043] 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.

[0044] 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.

[0045] 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.

[0046] like Figure 1 , Figure 2 As shown, a rubber track assembly fixture includes a base plate 1, a lifting platform 2, a clamping device 4, two lateral sliding trolleys 5, and two pry bar assemblies 6. The lifting platform 2 is installed in the middle area of ​​the top surface of the base plate 1 to support the vertical movement of the lower frame 8. The clamping device 4 is installed on the lifting platform 2 on both sides of the lower frame 8 in the longitudinal direction to press the lower frame 8 downward and fix it on the lifting platform 2. The two lateral sliding trolleys 5 are slidably connected to the base plate 1 on both sides of the lower frame 8 in the lateral direction to transport the rubber track 9 onto the lower frame 8. The two pry bar assemblies 6 are installed on the top surface of the base plate 1 near the front part of the lower frame 8 in the longitudinal direction, and each pry bar assembly 6 corresponds to one rubber track 9 to pry the rubber track 9 inward and upward so that its inner tooth groove engages with the outer edge of the guide wheel.

[0047] The following provides a further explanation of the specific structure of the aforementioned lifting platform.

[0048] like Figure 3 As shown, the lifting platform 2 has a scissor-type structure, and its vertical movement is achieved by the extension and retraction of the internal lifting cylinder. Multiple polyurethane panels 21 are fixed to the top surface of the lifting platform 2 to prevent it from bumping against the surface of the lower frame 8. Guide grooves are provided on the top surface of the lifting platform 2 for the clamping device 4 to slide within, accommodating lower frames 8 of different sizes.

[0049] Further plans will continue to be considered. Figure 3 As shown, a vertically extending guide frame 3 is fixed on each side of the top surface of the base plate 1 near the longitudinal direction of the lifting platform 2. Several guide wheels 31 are installed on the two side surfaces of the lifting platform 2 near the two guide frames 3. The guide wheels 31 roll in cooperation with the guide frames 3 to reduce the horizontal wear of the lifting platform 2.

[0050] Further options, such as Figure 1 , Figure 2 As shown, a clamping device 4 located at the front of the lifting platform 2 is fixed to it, and a clamping device 4 located at the rear of the lifting platform 2 is slidably connected to it to accommodate lower frames 8 of different sizes. The clamping device 4 is used to press the lower frame 8 downward to fix it on the lifting platform 2 and prevent the lower frame 8 from moving during assembly.

[0051] The following provides a further explanation of the specific structure of the clamping device described above.

[0052] like Figure 4As shown, the clamping device 4 includes a base 41, a threaded rod 42, an upper clamping jaw 43, a lower supporting jaw 44, and a locking nut 45; the base 41 is fixed on the lifting platform 2 or slidably connected in the guide groove on the lifting platform 2; the bottom of the threaded rod 42 is fixed on the base 41 and extends vertically upward therefrom; the lower supporting jaw 44 is installed on the threaded rod 42 in a threaded manner; the upper clamping jaw 43 is sleeved on the threaded rod 42 with a clearance fit; the locking nut 45 is screwed onto the threaded rod 42 above the upper clamping jaw 43, and when the upper clamping jaw 43 is pressed against the lower vehicle frame 8, the upper clamping jaw 43 is fixed on the threaded rod 42 by the locking nut 45 and the lower supporting jaw 44.

[0053] The specific structure of the above-mentioned pry bar assembly will be further described below.

[0054] As Figure 5 shown, the pry bar assembly 6 includes a mounting plate 61, a hinge seat 62 with two hinge points, a telescopic cylinder 63, and a pry bar 64; the mounting plate 61 is fixed on the bottom plate 1, and a transverse chute is provided on the mounting plate 61; the hinge seat 62 is slidably connected in the chute; one end of the telescopic cylinder 63 is hinged on the mounting plate 61, and the other end is connected to one hinge point on the hinge seat 62; one end of the pry bar 64 is hinged to the other hinge point on the hinge seat 62, and the other end catches the outer edge of the rubber track 9.

[0055] A further solution, as Figure 5 shown, the pry bar 64 is composed of a long rod and a "C"-shaped clamping structure located at the top of the long rod; a support rod 65 is fixed on the hinge seat 62, and an inclined upward notch is provided on the support rod 65. The middle area of the long rod is inserted into the notch, and a screw rod is fastened at the notch to limit the long rod; the bottom end of the long rod is hinged on the hinge seat 62.

[0056] A further solution, as Figure 1 、 Figure 2 shown, it further includes a hydraulic pump station 7 for driving the cylinder of the lifting platform 2, the cylinder of the pry bar assembly 6, and the traveling motor on the lower vehicle frame 8.

[0057] It should be noted that a plurality of lifting holes and / or forklift holes for transporting the rubber track assembly tooling are provided on the bottom plate 1; a guide groove for the rollers of the lateral sliding trolley 5 to roll horizontally inside is also provided on the bottom plate 1. The lateral sliding trolley 5 is used to support the rubber track 9, and the rollers thereon can roll horizontally in the guide groove of the bottom plate 1 to transport the rubber track 9 onto the lower vehicle frame 8.

[0058] The installation process of the above-mentioned rubber track assembly tooling is given below, including the following steps:

[0059] S1. Lift the lower vehicle frame onto the lifting platform;

[0060] S2. Hoist the rubber track onto the transverse sliding trolley;

[0061] S3. Connect the reserved pipeline of the hydraulic pump station to the central rotating body of the lower frame (the central rotating body is connected to the travel motor through the internal pipeline of the lower frame).

[0062] S4. Start the hydraulic pump station to drive the lifting platform to rise and lift the bottom of the lower frame longitudinal beam off the ground;

[0063] S5. Push the lateral sliding trolley inward to transport the rubber track to the lower frame, so that one end of the rubber track engages with the drive wheel;

[0064] S6. Control the hydraulic pump station to drive the pry bar to move inward, so that the "U"-shaped structure of the pry bar can lock the outer edge of the rubber track;

[0065] S7. Control the hydraulic pump station to drive the lifting platform to descend a certain distance and move the lever inward a certain distance, so that the upper surface of the rubber track tilts inward by 30 to 60 degrees;

[0066] S8. Control the hydraulic pump station to drive the travel motor, which in turn drives the rubber track to rotate. During the rotation, the inner tooth groove of the rubber track is engaged with the outer edge of the guide wheel under the action of the pry bar, and the assembly is completed.

[0067] In summary, this utility model provides a rubber track assembly fixture that uses a lifting platform, pry bar, travel motor and other power devices to simulate multiple complex actions of manual rubber track assembly, replacing manual assembly of excavator rubber tracks, reducing personnel requirements, improving assembly efficiency, and reducing labor intensity and safety risks.

[0068] The above effects are achieved through the following structure: (1) The design of the lifting platform and the lateral sliding trolley enables the excavator underframe and tracks to move quickly and stably throughout the assembly process; (2) The hydraulically driven pry bar design replaces the manual pry bar to pry the rubber tracks, so that the inner tooth groove of the track can be inserted into the guide wheel; (3) The external hydraulic pump station drives the travel motor to rotate the track, so that the original assembly method that required multiple points to be pryed at the same time can be transformed into a single pry that can smoothly insert the inner tooth groove of the track into the guide wheel.

[0069] 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.

[0070] 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.

[0071] 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 rubber track assembly fixture, characterized in that, Comprising: Bottom plate; Lifting platform, installed in the middle area of the top surface of the bottom plate, for supporting the lower frame to move up and down; Clamping devices, respectively installed on the lifting platforms on both sides in the longitudinal direction of the lower frame, for pressing down the lower frame to fix it on the lifting platform; Two transverse sliding trolleys, respectively movably connected to the bottom plate on both sides in the transverse direction of the lower frame, for transporting the rubber track onto the lower frame; Two pry bar assemblies, installed at the front part in the longitudinal direction of the top surface of the bottom plate near the lower frame, and each of the two pry bar assemblies corresponds to a rubber track, for prying the rubber track inward and upward to make its internal tooth groove engage with the outer edge of the guide wheel.

2. The rubber track assembly tooling according to claim 1, wherein: The lifting platform is of a scissor structure, and the up-and-down movement of the lifting platform is realized by the telescopic movement of the jacking oil cylinder inside it.

3. The rubber track assembly tooling according to claim 1, wherein: A plurality of polyurethane plates are fixed on the top surface of the lifting platform to prevent the lifting platform from bumping against the surface of the lower frame.

4. The rubber track assembly tooling according to claim 1, wherein: On both sides in the longitudinal direction of the top surface of the bottom plate near the lifting platform, a vertically upward extending guide frame is fixed respectively. On both side vertical surfaces of the lifting platform near the two guide frames, a number of guide wheels are installed, and the guide wheels are in rolling cooperation with the guide frames.

5. The rubber track assembly tooling according to claim 1, wherein: The clamping device at the front of the lifting platform is fixed together with it, and the clamping device at the rear of the lifting platform is slidably connected with it to adapt to lower frames of different sizes.

6. The rubber track assembly fixture according to claim 5, characterized in that, The clamping device includes: Base, fixed on the lifting platform or slidably connected in the guide groove on the lifting platform; Threaded rod, its bottom is fixed on the base and extends vertically upward therefrom; Lower support claw, installed on the threaded rod in a threaded manner; Upper pressure claw, sleeved on the threaded rod in a clearance fit manner; Locking nut, screwed onto the threaded rod above the upper pressure claw. When the upper pressure claw presses on the lower frame, the upper pressure claw is fixed on the threaded rod by the locking nut and the lower support claw.

7. The rubber track assembly fixture according to claim 1, characterized in that, The pry bar assembly includes: Mounting plate, fixed on the bottom plate, and a transverse chute is provided on the mounting plate; Hinge seat with two hinge points, slidably connected in the chute; Telescopic oil cylinder, one end of which is hinged on the mounting plate and the other end is connected to a hinge point on the hinge seat; Pry bar, one end of which is hinged on the other hinge point on the hinge seat and the other end catches the outer edge of the rubber track.

8. The rubber track assembly tooling according to claim 7, wherein: The pry bar consists of a long rod and a "U" - shaped clamping structure at the top end of the long rod; A support rod is fixed on the hinge seat, and an inclined upward notch is provided on the support rod. The middle area of the long rod is inserted into the notch, and a screw is fastened at the notch to limit the long rod; the bottom end of the long rod is hinged on the hinge seat.

9. The rubber track assembly fixture according to claim 1, characterized in that: The base plate is provided with multiple lifting holes and / or forklift holes for transferring the rubber track assembly tooling. The base plate is also provided with guide grooves for the rollers of the lateral sliding trolley to roll laterally inside.

10. A rubber track assembly fixture according to claim 1, characterized in that: It also includes a hydraulic pump station, cylinders for driving the lifting platform, cylinders for the pry bar assembly, and a travel motor on the underframe.

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