Heavy crawler frame lifting positioner

Abstract

The invention belongs to the technical field of mechanical assembly. In order to solve the problems that potential safety hazards are large and efficiency is low when a crawler frame is turned over, a sliding plate is arranged on a translation base in a sliding mode, a lifting supporting mechanism is arranged at the top of the sliding plate, and a rotation driving mechanism is arranged at the movable end of the lifting supporting mechanism. The self-adaptive clamping mechanism is arranged at the output end of the rotary driving mechanism, and at least two hydraulic clamping assemblies arranged in different directions are arranged on the self-adaptive clamping mechanism. The sliding plate reciprocates in the horizontal direction of the translation base, the lifting supporting mechanism drives the rotary driving mechanism and the self-adaptive clamping mechanism to move in the vertical direction, and the rotary driving mechanism drives the self-adaptive clamping mechanism to rotate around a preset axis. The self-adaptive clamping mechanism clamps and positions crawler frames of different models through at least two hydraulic clamping assemblies. According to the positioner, linkage of translation, lifting and rotation is achieved, and the operation efficiency and safety are improved.

Description

Technical Field

[0001] This invention belongs to the field of mechanical assembly technology, and in particular relates to a heavy-duty tracked vehicle frame lifting and positioning machine. Background Technology

[0002] Currently, tracked vehicle frames are flipped using a hoisting method. First, the frame is secured with slings, and then a crane is used to lift it, thus flipping the tracked vehicle frame.

[0003] During manual operation, coordination between ground workers and crane operators is required. When the frame is tilted, there is a risk of the frame tipping over and falling off, which requires a high level of skill from the operators. In addition, the frame has many sharp edges, and the lifting equipment is prone to wear and damage after repeated lifting, which also poses certain safety hazards. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a heavy-duty tracked vehicle frame lifting and positioning machine that can realize translation, lifting and rotation linkage and has high safety.

[0005] This invention provides a heavy-duty tracked vehicle frame lifting and positioning machine, including a translation base, a lifting support mechanism, a rotary drive mechanism, and an adaptive clamping mechanism; A sliding plate is slidably mounted on the translation base, a lifting support mechanism is mounted on the top of the sliding plate, a rotary drive mechanism is mounted on the movable end of the lifting support mechanism, an adaptive clamping mechanism is mounted on the output end of the rotary drive mechanism, and the adaptive clamping mechanism is equipped with at least two hydraulic clamping components arranged in different directions. The sliding plate reciprocates along the horizontal direction of the translation base. The lifting support mechanism drives the rotary drive mechanism and the adaptive clamping mechanism to move in the vertical direction. The rotary drive mechanism drives the adaptive clamping mechanism to rotate around a preset axis. The adaptive clamping mechanism clamps and positions different models of tracked vehicle frames through at least two hydraulic clamping components.

[0006] Optionally, the translation base includes a ground rail body and a translation drive assembly, the slide plate slides with the ground rail body via a slider, and the translation drive assembly is connected to the slide plate in a transmission manner.

[0007] Optionally, the translation drive assembly includes a translation servo motor, a reducer, and a rack and pinion drive pair. The translation servo motor and the reducer are connected and fixed on the slide plate. The rack and pinion drive pair includes a meshing gear and a rack. The gear meshes with the output end of the reducer, and the rack meshes with the ground rail body.

[0008] Optionally, the lifting support mechanism includes a column body, a lifting drive assembly, and a guide frame. The column body has a hollow structure and a counterweight is installed inside. The guide frame is slidably connected to the column body through the guide assembly. The lifting drive assembly is located at the top of the column body and is connected to the guide frame in a transmission manner.

[0009] Optionally, the lifting drive assembly includes a lifting servo motor, a sprocket, and a chain. The lifting servo motor drives the sprocket to rotate, and the two ends of the chain are connected to the guide frame and the counterweight, respectively. The guide assembly includes limiting guide rails set on both sides of the column body and multiple sets of guide wheels set on the guide frame, all of which roll in cooperation with the limiting guide rails.

[0010] Optionally, the rotary drive mechanism includes a rotary servo motor, a reducer, and a central rotary support. The rotary servo motor and the reducer are both mounted on the guide frame via a transition connecting plate. The output shaft of the rotary servo motor is connected to the input shaft of the reducer. The central rotary support is mounted on the guide frame. An output gear is connected to the end of the output shaft of the reducer. The outer ring of the central rotary support is provided with an annular external tooth. The output gear meshes with the annular external tooth. An adaptive clamping mechanism is connected to the central rotary support.

[0011] Optionally, it also includes a rotary joint and a rotary joint bracket, the rotary joint bracket being mounted on the guide frame, the rotary joint being connected to the rotary joint bracket, and the rotary joint being used to transmit hydraulic oil to the adaptive clamping mechanism in a rotating state.

[0012] Optionally, the rotary joint bracket is equipped with two limit sensors, which are used to limit the rotation angle of the adaptive clamping mechanism.

[0013] Optionally, the hydraulic clamping assembly includes a drive cylinder and a pressure head seat. The drive cylinder includes a Y-axis cylinder and a Z-axis cylinder. The pressure head seat includes a Y-axis pressure head seat connected to the Y-axis cylinder and a Z-axis pressure head seat connected to the Z-axis cylinder. The Z-axis pressure head seat is connected to the output end of the Z-axis cylinder via a hinge structure to allow for some movement.

[0014] Optionally, the adaptive clamping mechanism further includes a support frame and a reference positioning assembly. The reference positioning assembly includes a reference positioning block, at least two linear bearings, and a guide rod. The reference positioning block is disposed on the support frame and a buffer pad is connected to the reference positioning block. The buffer pad serves as the reference surface of the track frame. The reference positioning block is located at the reference position of the contact surface between the adaptive clamping mechanism and the track frame. The guide rod is disposed parallel to the movement direction of the Y-axis cylinder and the Z-axis cylinder within the support frame. The linear bearing is sleeved on the outer periphery of the guide rod and connected to the Y-axis cylinder and the Z-axis cylinder. The linear bearing moves synchronously along the extension direction of the guide rod as the Y-axis cylinder and the Z-axis cylinder move.

[0015] The technical solution provided by the embodiments of the present invention has the following beneficial effects compared with the prior art: This invention provides a heavy-duty tracked vehicle frame lifting positioner. This positioner uses hydraulic clamping components arranged in different directions on an adaptive clamping mechanism for rigid clamping and precise positioning by a reference positioning block, thus forming a stable clamping structure. This avoids the problem of uneven force distribution and tipping that often occurs in traditional hoisting. Furthermore, the hydraulic clamping components arranged in different directions are compatible with different tracked vehicle frames, improving applicability. This positioner, through the setting of a lifting support mechanism, a rotation drive mechanism, and an adaptive clamping mechanism, utilizes a servo motor to achieve coordinated translation, lifting, and rotation, eliminating the need for step-by-step operations, shortening the work cycle, improving work efficiency, and enhancing operational safety by eliminating the need for manual operation. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a heavy-duty tracked vehicle frame lifting and positioning machine according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the guide frame described in an embodiment of the present invention; Figure 3 This is a front view of the adaptive clamping mechanism described in an embodiment of the present invention; Figure 4 This is a rear view of the adaptive clamping mechanism described in an embodiment of the present invention; Figure 5 for Figure 3 A magnified view of a section at point A in the middle; Figure 6 This is a schematic diagram of the rotating component of the adaptive clamping mechanism described in an embodiment of the present invention.

[0019] The components include: 1. Ground rail body; 2. Slide plate; 3. Column body; 4. Guide frame; 5. Translation servo motor; 6. Lifting servo motor; 7. Rotation servo motor; 8. Transition connecting plate; 9. First guide wheel; 10. Second guide wheel; 11. Z-axis hydraulic cylinder; 12. Linear bearing; 13. Y-axis hydraulic cylinder; 14. Guide rod; 15. Y-axis pressure head seat; 16. Reference positioning block; 17. Buffer pad; 18. Z-axis pressure head seat; 19. Rotary joint; 20. Rotary joint bracket; 21. Limit sensor; 22. Reducer; 23. Limit guide rail; 24. Stop bar. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of the present invention, the solutions of the present invention will be further described below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention, but the invention may also be practiced in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the invention, and not all embodiments.

[0022] Reference Figures 1 to 6 As shown, this embodiment provides a heavy-duty tracked vehicle frame lifting and positioning machine, including a translation base, a lifting support mechanism, a rotary drive mechanism, and an adaptive clamping mechanism.

[0023] The translation base includes a sliding plate 2, which is slidably mounted on the translation base. The translation base includes a ground rail body 1 and a translation drive assembly. The sliding plate 2 is slidably engaged with the ground rail body 1 via a slider. The translation drive assembly includes a translation servo motor 5, a reducer 22, and a gear and rack transmission pair. The translation servo motor 5 and the reducer 22 are connected and fixed on the sliding plate 2. The gear and rack transmission pair includes a meshing gear and a rack. The gear is meshed with the output end of the reducer 22, and the rack is meshed with the ground rail body 1. When the translation servo motor 5 is started, its power is transmitted to the gear and rack transmission pair through the reducer 22. The meshing action of the gear and rack converts the rotational motion into linear motion, thereby driving the sliding plate 2 to reciprocate along the horizontal direction of the ground rail body 1, thus realizing the translation function of this positioner.

[0024] Reference Figure 1As shown, the lifting support mechanism is located on top of the sliding plate 2, and includes a column body 3, a lifting drive assembly, and a guide frame 4. The column body 3 has a hollow structure and a counterweight is installed inside. The guide frame 4 is slidably connected to the column body 3 through a guide assembly. The guide assembly includes limiting guide rails 23 on both sides of the column body 3 and multiple sets of guide wheels on the guide frame 4. The multiple sets of guide wheels are a first guide wheel 9 and a second guide wheel 10. The first guide wheel 9 and the second guide wheel 10 are both in rolling cooperation with the limiting guide rails 23 to ensure the stability of the guide frame 4 during the lifting process, reduce the difficulty of manual hoisting operations, and improve work efficiency. The lifting drive assembly is located at the top of the column body 3 and is connected to the guide frame 4 via transmission. It includes a lifting servo motor 6, a sprocket, and a chain. The lifting servo motor 6 drives the sprocket to rotate. The two ends of the chain are connected to the guide frame 4 and the counterweight, respectively. The counterweight can balance the gravity of the workpiece when the positioner lifts it, reduce the load power of the lifting servo motor 6, and improve stability. When the lifting servo motor 6 is started, the guide frame 4 is driven to move up and down along the vertical direction of the column body 3 through the transmission action of the sprocket and the chain.

[0025] Reference Figure 1 and Figure 2 As shown, the rotary drive mechanism is located at the movable end of the lifting support mechanism, i.e., the rotary drive mechanism is mounted on the guide frame 4. It includes a rotary servo motor 7, a reducer, and a central rotary support. Both the rotary servo motor 7 and the reducer are mounted on the guide frame 4 via a transition connecting plate 8. The output shaft of the rotary servo motor 7 is connected to the input shaft of the reducer. The central rotary support is mounted on the guide frame 4. An output gear is connected to the end of the output shaft of the reducer. The outer ring of the central rotary support is provided with an annular external tooth. The output gear meshes with the annular external tooth. When the rotary servo motor 7 starts, its power is transmitted to the output gear through the reducer. The output gear meshes with the annular external tooth of the central rotary support, thereby driving the central rotary support to rotate around a preset axis. This preset axis is the self-rotation axis of the central rotary support, and its extension direction is perpendicular to the ground. The rotation of the central rotary support drives the adaptive clamping mechanism connected to it to rotate synchronously around the preset axis, thereby realizing the rotational movement of the tracked vehicle frame in space to meet the assembly requirements at different angles.

[0026] Reference Figure 4 , Figure 5 and Figure 6As shown, the rotary drive mechanism also includes a rotary joint 19 and a rotary joint bracket 20. The rotary joint bracket 20 is mounted on the guide frame 4, and the rotary joint 19 is connected to the rotary joint bracket 20. The rotary joint 19 is used to transmit hydraulic oil to the adaptive clamping mechanism in the rotating state, ensuring normal flow of oil circuit during rotary motion. Two limit sensors 21 are mounted on the rotary joint bracket 20, and a stop bar 24 is mounted on the guide frame 4. The limit sensors 21 are used to detect the distance between themselves and the stop bar 24. When the limit sensors 21 detect that the distance between themselves and the stop bar 24 is 0, that is, the adaptive clamping mechanism rotates to the limit angle, the limit sensors 21 send the detected distance signal to the control system, and the control system immediately cuts off the power to the rotary drive mechanism, causing the adaptive clamping mechanism to stop rotating. This avoids equipment damage or safety accidents caused by excessive rotation, improves the operational safety of this positioner, ensures the accurate positioning of the tracked vehicle frame during assembly, and improves the overall assembly efficiency and quality.

[0027] Reference Figure 3As shown, the adaptive clamping mechanism is located at the output end of the rotary drive mechanism, i.e., the adaptive clamping mechanism is connected to the central rotary support. The adaptive clamping mechanism includes a load-bearing frame, a reference positioning component, and at least two hydraulic clamping components arranged in different directions. The hydraulic clamping components include drive cylinders and pressure head seats. The drive cylinders include a Y-axis cylinder 13 and a Z-axis cylinder 11. The pressure head seats include a Y-axis pressure head seat 15 connected to the Y-axis cylinder 13 and a Z-axis pressure head seat 18 connected to the Z-axis cylinder 11. The reference positioning component includes a reference positioning... The hydraulic clamping assembly comprises a positioning block 16, at least two linear bearings 12, and a guide rod 14. The guide rod 14 is arranged parallel to the movement directions of the Y-axis cylinder 13 and the Z-axis cylinder 11 within the support frame. The linear bearings 12 are sleeved on the outer periphery of the guide rod 14 and connected to the Y-axis cylinder 13 and the Z-axis cylinder 11. The linear bearings 12 move synchronously with the movement of the Y-axis cylinder 13 and the Z-axis cylinder 11 along the extension direction of the guide rod 14, ensuring the accuracy and stability of the hydraulic clamping assembly during the clamping and positioning process. The Z-axis pressure head seat 18 is connected to the bearing via a hinge structure. The output end of the Z-axis hydraulic cylinder 11 is connected to allow for some movement to accommodate track frames of different shapes and sizes. A reference positioning block 16 is mounted on the support frame, and a buffer pad 17 is connected to the reference positioning block 16. The buffer pad 17 serves as the reference surface for the track frame, meaning it contacts the track frame to prevent damage to the workpiece surface. The reference positioning block 16 is located at the reference position on the contact surface between the adaptive clamping mechanism and the track frame. After the track frame is placed into the adaptive clamping mechanism, the reference positioning block 16 first restricts the track frame's... The degree of freedom provides reference coordinates for the clamping actions of the Y-axis cylinder 13 and the Z-axis cylinder 11, ensuring that positioning can be completed with the same reference regardless of the type of track frame, avoiding clamping offset. The reference positioning block 16, together with the clamping of the Y-axis cylinder 13 and the Z-axis cylinder 11, forms a stable structure of reference positioning and bidirectional clamping. There is no need to adjust the reference of the adaptive clamping mechanism separately for different types of track frames. It can be adapted simply by adjusting the stroke of the Y-axis cylinder 13 and the Z-axis cylinder 11, which improves the applicability of this positioner.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heavy tracked vehicle frame lift positioner, characterized by, It includes a translation base, a lifting support mechanism, a rotary drive mechanism, and an adaptive clamping mechanism; A sliding plate (2) is slidably mounted on the translation base. A lifting support mechanism is mounted on the top of the sliding plate (2). A rotary drive mechanism is mounted on the movable end of the lifting support mechanism. An adaptive clamping mechanism is mounted on the output end of the rotary drive mechanism. At least two hydraulic clamping components are mounted on the adaptive clamping mechanism in different directions. The sliding plate (2) moves back and forth along the horizontal direction of the translation base. The lifting support mechanism drives the rotary drive mechanism and the adaptive clamping mechanism to move in the vertical direction. The rotary drive mechanism drives the adaptive clamping mechanism to rotate around the preset axis. The adaptive clamping mechanism clamps and positions different models of tracked vehicle frames through at least two hydraulic clamping components.

2. A heavy track vehicle frame lift positioner according to claim 1, characterized in that, The translation base includes a ground rail body (1) and a translation drive assembly. The sliding plate (2) slides with the ground rail body (1) through a slider. The translation drive assembly is connected to the sliding plate (2) for transmission.

3. A heavy track vehicle frame lift positioner according to claim 2, wherein, The translation drive assembly includes a translation servo motor (5), a reducer (22), and a gear and rack transmission pair. The translation servo motor (5) and the reducer (22) are connected and fixed on the slide plate (2). The gear and rack transmission pair includes a meshing gear and a rack. The gear meshes with the output end of the reducer (22), and the rack meshes with the ground rail body (1).

4. The heavy-duty tracked vehicle frame lifting and positioning machine according to claim 1, characterized in that, The lifting support mechanism includes a column body (3), a lifting drive assembly and a guide frame (4). The column body (3) is a hollow structure and has a counterweight inside. The guide frame (4) is slidably connected to the column body (3) through the guide assembly. The lifting drive assembly is located at the top of the column body (3) and is connected to the guide frame (4) in a transmission manner.

5. A heavy-duty tracked vehicle frame lifting and positioning machine according to claim 4, characterized in that, The lifting drive assembly includes a lifting servo motor (6), a sprocket and a chain. The lifting servo motor (6) drives the sprocket to rotate, and the two ends of the chain are connected to the guide frame (4) and the counterweight, respectively. The guide assembly includes a limiting guide rail (23) set on both sides of the column body (3) and multiple sets of guide wheels set on the guide frame (4), all of which roll in cooperation with the limiting guide rail (23).

6. A heavy-duty tracked vehicle frame lifting and positioning machine according to claim 1, characterized in that, The rotary drive mechanism includes a rotary servo motor (7), a reducer and a central rotary support. The rotary servo motor (7) and the reducer are both mounted on the guide frame (4) via a transition connecting plate (6). The output shaft of the rotary servo motor (7) is connected to the input shaft of the reducer. The central rotary support is mounted on the guide frame (4). An output gear is connected to the end of the output shaft of the reducer. The outer ring of the central rotary support is provided with an annular external tooth. The output gear meshes with the annular external tooth. The adaptive clamping mechanism is connected to the central rotary support.

7. A heavy-duty tracked vehicle frame lifting and positioning machine according to claim 6, characterized in that, It also includes a rotary joint (19) and a rotary joint bracket (20), the rotary joint bracket (20) being mounted on the guide frame (4), the rotary joint (19) being connected to the rotary joint bracket (20), and the rotary joint (19) being used to transmit hydraulic oil to the adaptive clamping mechanism in a rotating state.

8. A heavy-duty tracked vehicle frame lifting and positioning machine according to claim 7, characterized in that, Two limit sensors (21) are provided on the rotary joint bracket (20). The limit sensors (21) are used to limit the rotation angle of the adaptive clamping mechanism.

9. A heavy-duty tracked vehicle frame lifting and positioning machine according to claim 1, characterized in that, The hydraulic clamping assembly includes a drive cylinder and a pressure head seat. The drive cylinder includes a Y-axis cylinder (13) and a Z-axis cylinder (11). The pressure head seat includes a Y-axis pressure head seat (15) connected to the Y-axis cylinder (13) and a Z-axis pressure head seat (18) connected to the Z-axis cylinder (11). The Z-axis pressure head seat (18) is connected to the output end of the Z-axis cylinder (11) through a hinge structure to allow for a certain amount of movement.

10. A heavy-duty tracked vehicle frame lifting and positioning machine according to claim 9, characterized in that, The adaptive clamping mechanism also includes a support frame and a reference positioning component. The reference positioning component includes a reference positioning block (16), at least two linear bearings (12) and a guide rod (14). The reference positioning block (16) is set on the support frame. A buffer pad (17) is connected to the reference positioning block (16). The buffer pad (17) is the reference surface of the track frame. The reference positioning block (16) is located at the reference position of the contact surface between the adaptive clamping mechanism and the track frame. The guide rod (14) is set parallel to the movement direction of the Y-axis cylinder (13) and the Z-axis cylinder (11) in the support frame. The linear bearing (12) is sleeved on the outer periphery of the guide rod (14) and connected to the Y-axis cylinder (13) and the Z-axis cylinder (11). The linear bearing (12) moves synchronously with the movement of the Y-axis cylinder (13) and the Z-axis cylinder (11) along the extension direction of the guide rod (14).

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