High-stability chassis support structure of walking type pile driver

Abstract

The high-stability chassis support structure of the walking type pile driver comprises a chassis body, two supporting assemblies are installed outside the chassis body, the two supporting assemblies are symmetrically arranged, and each supporting assembly comprises two hinged supports which are fixedly connected with two corners of one side of the chassis body. A horizontally-arranged supporting rod is hinged to the interior of each of the two hinged seats, a vertically-arranged hydraulic cylinder is fixedly mounted in each of the two supporting rods, an extension assembly is mounted at the output end of each of the two hydraulic cylinders, and each extension assembly comprises a supporting plate fixedly connected with the output end of the corresponding hydraulic cylinder; by arranging the supporting assembly, the extension state of the supporting rod can be adjusted according to the use condition, it is guaranteed that the base plate is stable enough when the device is used, and the area of the base plate cannot be increased too much when the device is not used.

Description

Technical Field

[0001] This utility model relates to the field of pile driver technology, specifically a high-stability chassis support structure for a walking pile driver. Background Technology

[0002] A pile driver is a type of piling machinery that uses impact force to drive piles into the ground. It consists of a pile hammer, a pile frame, and auxiliary equipment. Its basic technical parameters are the weight of the impact part, the impact kinetic energy, and the impact frequency. The hydraulic walking pile driver is one of the commonly used pile drivers today, and the chassis is one of the most important structures of the hydraulic walking pile driver.

[0003] A search revealed a utility model patent with Chinese patent publication number CN217949052U, which discloses a floating box walking pile driver, including a base, an installation platform, a support bracket, a buffer pad, a control room, reinforcing members, a protective cover, a rotating motor, a rotating telescopic rod, a rotating bracket, a support rod, and an impact hammer; the top of the installation platform is connected to the control room; the top of the installation platform is connected to the protective cover; and the top of the installation platform is connected to the rotating motor.

[0004] The aforementioned piling machine chassis is supported by support brackets extending in all directions. To ensure the stability of the piling machine during use, the support brackets extend a long distance, thus occupying a large space and making it difficult to move. There is room for improvement. Utility Model Content

[0005] The purpose of this invention is to provide a highly stable chassis support structure for a walking pile driver to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-stability chassis support structure for a walking pile driver, comprising a chassis body, two support components mounted on the outside of the chassis body, the two support components being symmetrically arranged, each support component including two hinge seats fixedly connected to two corners on one side of the chassis body, each of the two hinge seats having a horizontally arranged support rod hinged inside, each of the two support rods having a vertically arranged hydraulic cylinder fixedly installed inside, each of the two hydraulic cylinders having an extension component mounted on its output end, each extension component including a support plate fixedly connected to the output end of the hydraulic cylinder, the support plate having a limit groove inside, and the extension plate being slidably connected inside the limit groove.

[0007] As a further preferred embodiment of this technical solution, a driven gear is coaxially fixed at one end of each of the two support rods' rotating shafts. A limiting groove is formed inside the chassis body, and a horizontally arranged bidirectional lead screw is rotatably connected inside the limiting groove. A drive rod is threaded onto the threaded ends of the bidirectional lead screw. Both drive rods are slidably connected inside the limiting groove. A rack is fixedly connected to the ends of the two drive rods that are far apart from each other, and the two racks mesh with the two driven gears respectively.

[0008] The extension state of the support rod can be adjusted according to the usage situation to ensure that the chassis is stable enough when the device is in use, and does not cause an excessive increase in the chassis area when not in use. When the motor on the top of the chassis body is started, the motor drives the helical gear to start rotating. The helical gear drives the helical gear ring to rotate through meshing. The helical gear ring drives the double-sided lead screw to rotate. The drive rod, which is restricted by the sliding groove inside the chassis body, cannot rotate. The double-sided lead screw will drive the two drive rods to move away from each other. The rack at the end of the drive rod drives the driven gear to rotate through meshing. The driven gear drives the support rod to flip outward until the support rod is perpendicular to the chassis body. The overall footprint of the bracket will increase significantly. After use, the support rod can also be driven to fold to the side of the chassis body to reduce the overall footprint of the bracket.

[0009] As a further preferred embodiment of this technical solution, a helical gear ring is coaxially fixed at the middle position of the bidirectional lead screw, a motor is fixedly installed on the top outer wall of the chassis body, and a helical gear is coaxially fixed at the output end of the motor, the helical gear meshing with the helical gear ring.

[0010] As a further preferred embodiment of this technical solution, a vertically arranged movable rod is slidably inserted inside the support plate, a connecting rod is rotatably connected to the bottom end of the movable rod, and the top end of the connecting rod is rotatably connected inside the extension plate. Two vertically arranged springs are fixedly connected between the support plate and the movable rod.

[0011] Activating the hydraulic cylinder inside the support rod causes the support plate to move closer to the ground. The bottom end of the moving rod first contacts the ground, but cannot move further due to the ground's obstruction. At this point, the tension exerted by the spring on the moving rod is overcome, and the support plate is driven to continue sliding downwards along the moving rod. The extension plate, which is restricted by the limiting groove, can only move horizontally. The moving rod can then drive the extension plate to move out of the limiting groove, thus increasing the length of the support plate and the overall area of ​​the bracket, further improving the stability of the bracket.

[0012] As a further preferred embodiment of this technical solution, two reinforcing plates are fixedly connected to the top and bottom exterior of the hinge seat, and all four reinforcing plates are fixedly connected to the chassis body.

[0013] As a further preferred embodiment of this technical solution, a connecting frame is fixedly connected to the bottom outer wall of the chassis body.

[0014] As a further preferred embodiment of this technical solution, the transmission ratio between the helical gear and the helical ring gear is greater than one.

[0015] This utility model provides a highly stable chassis support structure for a walking pile driver, which has the following advantages:

[0016] (1) By setting up a support component, the extension state of the support rod can be adjusted according to the usage situation, ensuring that the chassis is stable enough when the device is in use, and that the chassis area will not increase too much when not in use. When the motor on the top of the chassis body is started, the motor drives the helical gear to start rotating. The helical gear drives the helical gear ring to rotate through meshing. The helical gear ring drives the double-sided screw to rotate. The drive rod that is restricted by the sliding groove inside the chassis body cannot rotate. The double-sided screw will drive the two drive rods to move away from each other. The rack at the end of the drive rod drives the driven gear to rotate through meshing. The driven gear drives the support rod to flip outward until the support rod is perpendicular to the chassis body. The overall footprint of the bracket will increase greatly. After use, the support rod can also be driven to fold to the side of the chassis body, reducing the overall footprint of the bracket.

[0017] (2) By setting up an extension component, the hydraulic cylinder inside the support rod is activated, and the support plate is driven to move closer to the ground. The bottom end of the moving rod first contacts the ground. Due to the obstruction of the ground, it cannot continue to move. At this time, the tension applied by the spring to the moving rod is overcome, and the support plate is driven to continue sliding down along the moving rod. The extension plate, which is restricted by the limiting groove, can only move horizontally. The moving rod can drive the extension plate to move out of the limiting groove, and the length of the support plate will be increased again. The overall area of ​​the bracket will also be increased, which can further improve the stability of the bracket. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0020] Figure 3 This is an enlarged structural schematic diagram of the extension component of this utility model;

[0021] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0022] In the diagram: 1. Chassis body; 2. Connecting frame; 3. Support assembly; 4. Extension assembly; 301. Hinge seat; 302. Support rod; 303. Hydraulic cylinder; 304. Driven gear; 305. Drive rod; 306. Double-acting lead screw; 307. Helical ring gear; 308. Motor; 309. Helical gear; 310. Reinforcing plate; 401. Support plate; 402. Limiting groove; 403. Extension plate; 404. Moving rod; 405. Connecting rod; 406. Spring. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] This utility model provides a technical solution as follows: Figure 1 , Figure 2 and Figure 4 As shown in this embodiment, a high-stability chassis support structure for a walking pile driver includes a chassis body 1. Two support components 3 are installed on the outside of the chassis body 1. The two support components 3 are symmetrically arranged. Each support component 3 includes two hinge seats 301 fixedly connected to two corners on one side of the chassis body 1. A horizontally arranged support rod 302 is hinged inside each of the two hinge seats 301. A vertically arranged hydraulic cylinder 303 is fixedly installed inside each of the two support rods 302. An extension component 4 is installed at the output end of each of the two hydraulic cylinders 303. The extension component 4 includes a support plate 401 fixedly connected to the output end of the hydraulic cylinder 303. A limit groove 402 is formed inside the support plate 401, and the extension plate 403 is slidably connected inside the limit groove 402.

[0025] Two support rods 302 have a driven gear 304 fixed coaxially at one end of their rotating shafts. The chassis body 1 has a limiting groove inside, and a horizontally arranged bidirectional lead screw 306 is rotatably connected inside the limiting groove. A drive rod 305 is threaded at both ends of the bidirectional lead screw 306. The two drive rods 305 are slidably connected inside the limiting groove. A rack is fixedly connected at the ends of the two drive rods 305 that are far apart from each other, and the two racks mesh with the two driven gears 304 respectively.

[0026] A helical gear ring 307 is coaxially fixed at the middle position of the double-acting lead screw 306. A motor 308 is fixedly installed on the top outer wall of the chassis body 1. A helical gear 309 is coaxially fixed at the output end of the motor 308, and the helical gear 309 meshes with the helical gear ring 307.

[0027] The motor 308 on the top of the chassis body 1 is started. The motor 308 drives the helical gear 309 to start rotating. The helical gear 309 drives the helical ring 307 to rotate through meshing. The helical ring 307 drives the double-acting screw 306 to rotate. The drive rod 305, which is restricted by the internal sliding groove of the chassis body 1, cannot rotate. The double-acting screw 306 will drive the two drive rods 305 to move away from each other. The rack at the end of the drive rod 305 drives the driven gear 304 to rotate through meshing. The driven gear 304 drives the support rod 302 to flip outward until the support rod 302 is perpendicular to the chassis body 1. The overall footprint of the bracket will be greatly increased. After use, the support rod 302 can also be driven to fold to the side of the chassis body 1, reducing the overall footprint of the bracket.

[0028] like Figure 3 As shown, a vertically arranged movable rod 404 is slidably inserted inside the support plate 401. A connecting rod 405 is rotatably connected to the bottom end of the movable rod 404. The top end of the connecting rod 405 is rotatably connected inside the extension plate 403. Two vertically arranged springs 406 are fixedly connected between the support plate 401 and the movable rod 404.

[0029] The hydraulic cylinder 303 inside the support rod 302 is activated, and the support plate 401 is driven to move closer to the ground. The bottom end of the moving rod 404 first contacts the ground. Due to the obstruction of the ground, it cannot move further. At this time, the tension applied by the spring 406 to the moving rod 404 is overcome, and the support plate 401 is driven to continue sliding down along the moving rod 404. The extension plate 403, which is restricted by the limiting groove 402, can only move horizontally. The moving rod 404 can then drive the extension plate 403 to move out of the limiting groove 402. The length of the support plate 401 will be increased again, and the overall area of ​​the bracket will also be increased, which can further improve the stability of the bracket. When the support plate 401 leaves the ground, the stretched spring 406 drives the moving rod 404 back to its original position, and the extension plate 403 will also re-enter the limiting groove 402.

[0030] like Figure 1 and Figure 2 As shown, two reinforcing plates 310 are fixedly connected to the top and bottom exterior of the hinge 301, and all four reinforcing plates 310 are fixedly connected to the chassis body 1. The reinforcing plates 310 can enhance the connection strength between the hinge 301 and the chassis body 1.

[0031] like Figure 1 and Figure 2 As shown, a connecting frame 2 is fixedly connected to the bottom outer wall of the chassis body 1. The connecting frame 2 can be used for the installation of the track structure, and the device for installing the track drive equipment can be welded to both sides of the connecting frame 2.

[0032] like Figure 4As shown, the transmission ratio between the helical gear 309 and the helical ring gear 307 is greater than one. The helical gear 309 needs to rotate multiple times to drive the helical ring gear 307 to rotate once, thus achieving the effect of speed reduction and torque increase, and ensuring the stability of the rotation of the bidirectional lead screw 306.

[0033] This utility model provides a highly stable chassis support structure for a walking pile driver, the specific working principle of which is as follows:

[0034] When the device is in operation, the motor 308 on the top of the chassis body 1 is started. The motor 308 drives the helical gear 309 to rotate. The helical gear 309 drives the helical gear ring 307 to rotate through meshing. The helical gear ring 307 drives the double-acting screw 306 to rotate. The drive rod 305, which is restricted by the internal sliding groove of the chassis body 1, cannot rotate. The double-acting screw 306 then drives the two drive rods 305 to move away from each other. The rack at the end of the drive rod 305 drives the driven gear 304 to rotate through meshing. The driven gear 304 drives the support rod 302 to flip outward until the support rod 302 is perpendicular to the chassis body 1. The overall footprint of the bracket will increase significantly. After use, the support rod 302 can also be driven to fold to the side of the chassis body 1, reducing the overall footprint of the bracket. Inside the hydraulic cylinder 303, the support plate 401 is driven to move closer to the ground. The bottom end of the moving rod 404 first contacts the ground. Due to the obstruction of the ground, it cannot move further. At this time, the tension applied by the spring 406 to the moving rod 404 is overcome, and the support plate 401 is driven to continue sliding down along the moving rod 404. The extension plate 403, which is restricted by the limiting groove 402, can only move horizontally. The moving rod 404 can then drive the extension plate 403 to move out of the limiting groove 402. The length of the support plate 401 will be increased again, and the overall area of ​​the bracket will also be increased, which can further improve the stability of the bracket. When the support plate 401 leaves the ground, the stretched spring 406 drives the moving rod 404 back to its original position, and the extension plate 403 will also re-enter the limiting groove 402.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-stability chassis support structure for a walking pile driver, comprising a chassis body (1), characterized in that: Two support components (3) are installed on the outside of the chassis body (1). The two support components (3) are arranged symmetrically. Each support component (3) includes two hinge seats (301) fixedly connected to two corners on one side of the chassis body (1). A horizontally arranged support rod (302) is hinged inside each of the two hinge seats (301). A vertically arranged hydraulic cylinder (303) is fixedly installed inside each of the two support rods (302). An extension component (4) is installed at the output end of each of the two hydraulic cylinders (303). The extension component (4) includes a support plate (401) fixedly connected to the output end of the hydraulic cylinder (303). A limit groove (402) is opened inside the support plate (401). The extension plate (403) is slidably connected inside the limit groove (402).

2. The high-stability chassis support structure for a walking pile driver according to claim 1, characterized in that: One end of each of the two support rods (302) is coaxially fixed with a driven gear (304). The chassis body (1) has a limiting groove inside, and a horizontally arranged bidirectional lead screw (306) is rotatably connected inside the limiting groove. A drive rod (305) is threaded at both ends of the bidirectional lead screw (306). The two drive rods (305) are slidably connected inside the limiting groove. A rack is fixedly connected at the ends of the two drive rods (305) that are far apart from each other, and the two racks mesh with the two driven gears (304) respectively.

3. The high-stability chassis support structure for a walking pile driver according to claim 2, characterized in that: A helical gear ring (307) is coaxially fixed at the middle position of the bidirectional lead screw (306). A motor (308) is fixedly installed on the top outer wall of the chassis body (1). A helical gear (309) is coaxially fixed at the output end of the motor (308). The helical gear (309) meshes with the helical gear ring (307).

4. The high-stability chassis support structure for a walking pile driver according to claim 1, characterized in that: A vertically arranged movable rod (404) is slidably inserted inside the support plate (401). A connecting rod (405) is rotatably connected to the bottom end of the movable rod (404). The top end of the connecting rod (405) is rotatably connected inside the extension plate (403). Two vertically arranged springs (406) are fixedly connected between the support plate (401) and the movable rod (404).

5. The high-stability chassis support structure for a walking pile driver according to claim 1, characterized in that: The hinge base (301) has two reinforcing plates (310) fixedly connected to its top and bottom exterior, and all four reinforcing plates (310) are fixedly connected to the chassis body (1).

6. The high-stability chassis support structure for a walking pile driver according to claim 1, characterized in that: The chassis body (1) has a connecting frame (2) fixedly connected to the bottom outer wall.

7. The high-stability chassis support structure for a walking pile driver according to claim 3, characterized in that: The transmission ratio between the helical gear (309) and the helical ring gear (307) is greater than one.

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