High-precision assembling and positioning tool for four eccentric blocks

Abstract

The utility model relates to the technical field of pile driver production, in particular to a four-eccentric-block high-precision assembling and positioning tool which comprises an installation shaft, the installation shaft is installed through a first back plate and a second back plate, and the distance between the first back plate and the second back plate is adjustable. And a first shaft hole, a second shaft hole, a third shaft hole and a fourth shaft hole are respectively formed in the first back plate and the second back plate. The mounting shaft is placed through the first back plate and the second back plate, the distance between the first back plate and the second back plate is controlled, so that the spare length of the mounting shaft is supported by the second back plate, and when each component is mounted, the force applied by each component is supported by the second back plate; the mounting shaft is prevented from moving easily, at the moment, the spare length of the mounting shaft is short, the mounting shaft can be continuously mounted and fixed conveniently, deformation of the mounting shaft is reduced, and the service life of the mounting shaft is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pile driver production, in particular to a high-precision assembly and positioning tool for four eccentric blocks. Background Art

[0002] A pile driver is a type of equipment specially used for pile foundation construction in civil engineering. It is a pile-driving machine that usually pulls piles out of the ground through vibration, static force or hammering. For example, in the patent document with application number 202121552115.3, an environmentally friendly pile driver is disclosed, and it is specifically disclosed that a drill bit is fixedly connected to the bottom of the drive motor, so that the pile can be pulled out under the action of the drill bit.

[0003] In the prior art, when a vibratory hammer is used for pile driving, the vibratory hammer uses a hydraulic motor to drive an eccentric wheel to rotate at high speed to generate high-frequency vibrations, and transmits the vibration energy to the pile body through the chuck, so that the soil structure around the pile body forms a fluid state, reducing the friction resistance between the pile body and the soil, and then the pile body is sunk into or pulled out of the soil by the force of the excavator to complete the construction work.

[0004] The prior art uses one or two sets of eccentric wheels to generate high-frequency vibrations. At this time, the left and right vibration forces cannot be completely offset. Therefore, during longitudinal vibration, the left and right forces will affect the action position of the vibrating hammer, or affect the rigidity of the vibrating hammer, thereby affecting the service life of the vibrating hammer.

[0005] Therefore, when installing the eccentric wheel, since there are more components installed on the installation shaft, the spare length of the installation shaft is longer during the initial installation. Then the gears and related components are directly installed. At this time, the installation shaft bears the gravity of each component, causing the spare length of the installation shaft to produce a slight deformation due to the effect of gravity, thereby affecting the rotation accuracy of the installation shaft and easily affecting the service life of the installation shaft. Utility Model Content

[0006] The technical problem solved by the utility model is to solve the problem in the prior art that when installing components on the installation shaft, the installation shaft with an extra length will produce a slight deformation due to the effect of gravity, thereby affecting the rotation accuracy of the installation shaft and easily affecting the service life of the installation shaft.

[0007] The utility model can be implemented through the following technical scheme: a high-precision assembly and positioning tooling for four eccentric blocks, including a mounting shaft, the mounting shaft is installed through a first back plate and a second back plate, the distance between the first back plate and the second back plate is adjustable, and a first shaft hole, a second shaft hole, a third shaft hole and a fourth shaft hole are respectively provided on the first back plate and the second back plate.

[0008] A further technical improvement of the utility model is that the first back plate is fixed on the sliding bottom plate, and the second back plate is slidably arranged on the sliding bottom plate.

[0009] A further technical improvement of the utility model is that the first back plate is slidably connected to the second back plate, and a shaft fixing box for clamping and fixing the installation shaft is provided on a side of the first back plate away from the second back plate.

[0010] A further technical improvement of the utility model is that a first clamping groove and a second clamping groove for connecting with the installation shaft are provided inside the shaft fixing box, and a cylinder for limiting the installation shaft is longitudinally slidably arranged inside the first clamping groove.

[0011] A further technical improvement of the utility model is that: a plurality of groups of sliding blocks are fixed on the bottom of the second back plate, a sliding groove is provided on the sliding bottom plate, and the sliding groove and the sliding block are slidably connected.

[0012] A further technical improvement of the utility model is that the first axial hole and the second axial hole have the same height, and the third axial hole and the fourth axial hole have the same height.

[0013] A further technical improvement of the utility model is that the first shaft hole and the second shaft hole are respectively used to realize the installation of the first gear and the second gear on their respective mounting shafts, the third shaft hole and the fourth shaft hole are respectively used to realize the installation of the third gear and the fourth gear on their respective mounting shafts, the first gear and the third gear are meshed, the third gear and the fourth gear are meshed, the fourth gear and the second gear are meshed, and eccentric blocks are coaxially arranged on the first gear, the second gear, the third gear and the fourth gear.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. When the present application is in use, due to the action of the first shaft hole, the second shaft hole, the third shaft hole and the fourth shaft hole, four groups of mounting shafts are installed at the same time, and due to the position of each mounting shaft, the lateral rotation force can be offset during rotation. At the same time, the present application places the mounting shaft through the first back plate and the second back plate, and controls the distance between the first back plate and the second back plate so that the spare length on the mounting shaft is supported by the second back plate. When each component is installed, the force applied by each component is supported by the second back plate to prevent the mounting shaft from moving easily. At the same time, since the distance between the first back plate and the second back plate is adjustable, the spare length of the mounting shaft can be controlled as the mounting components are installed, and after installing some components, the mounting shaft is transferred to the rack. At this time, the spare length of the mounting shaft is shorter, which is convenient for continued installation and fixation of the mounting shaft, thereby reducing the deformation of the mounting shaft and ensuring the service life of the mounting shaft.

[0016] 2. The present application offsets the lateral forces of the second eccentric block and the first eccentric block, and offsets the lateral forces of the fourth eccentric block and the third eccentric block, thereby achieving the offset of the lateral forces, thereby ensuring that the vibratory hammer will not be affected by the lateral forces during operation. At the same time, under the joint action of the first eccentric block, the second eccentric block, the third eccentric block and the fourth eccentric block, the longitudinal vibration force is strengthened, thereby ensuring the piling effect of the vibratory hammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the auxiliary positioning tool structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the position of the eccentric block of the utility model;

[0020] Figure 3 This is a schematic diagram of the position of the shaft fixing box of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation of the installation shaft of the utility model.

[0022] In the figure: 1. first gear; 2. first eccentric block; 3. second gear; 4. second eccentric block; 5. third gear; 6. third eccentric block; 7. fourth gear; 8. fourth eccentric block; 9. first axial hole; 10. first back plate; 11. second axial hole; 12. end limit plate; 13. limit groove; 14. first horizontal slide bar; 15. slide block; 16. slide bottom plate; 17. slide groove; 18. third axial hole; 19. second horizontal slide bar; 20. second back plate; 21. fourth axial hole; 22. shaft fixing box; 23. middle limit plate; 24. second clamping groove; 25. cylinder; 26. mounting shaft; 27. first clamping groove; 28. pressure plate. DETAILED DESCRIPTION

[0023] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0024] See also Figure 1-4As shown, a four-eccentric block high-precision assembly and positioning tool comprises a first gear 1, a second gear 3, a third gear 5 and a fourth gear 7, wherein the first gear 1 and the second gear 3 have the same installation height, the third gear 5 and the fourth gear 7 have the same installation height, a first eccentric block 2 is coaxially mounted on the first gear 1, a second eccentric block 4 is coaxially mounted on the second gear 3, a third eccentric block 6 is coaxially mounted on the third gear 5, and a fourth eccentric block 8 is coaxially mounted on the fourth gear 7, wherein the second gear 3 and the fourth gear 7 are meshed and connected, the fourth gear 7 and the third gear 5 are meshed and connected, and the third gear 5 and the first gear 1 are meshed and connected. During the connection, the fourth gear 7 rotates in the opposite direction to the third gear 5, and the first gear 1 rotates in the opposite direction to the second gear 3. Therefore, in the present application, the lateral forces of the second eccentric block 4 and the first eccentric block 2 are offset, and the lateral forces of the fourth eccentric block 8 and the third eccentric block 6 are offset, thereby achieving the offset of the lateral forces, thereby ensuring that the vibrating hammer will not be affected by the lateral forces during operation. At the same time, under the joint action of the first eccentric block 2, the second eccentric block 4, the third eccentric block 6 and the fourth eccentric block 8, the longitudinal vibration force is strengthened, thereby ensuring the piling effect of the vibrating hammer.

[0025] In order to achieve the coaxial installation of the first gear 1, the first eccentric mass 2, the second gear 3, the second eccentric mass 4, the third gear 5, the third eccentric mass 6, the fourth gear 7 and the fourth eccentric mass 8, in the present application, the installation of the above-mentioned components is achieved through auxiliary positioning tooling, so that the first gear 1 and the first eccentric mass 2 are coaxial, the second gear 3 and the second eccentric mass 4 are coaxial, the third gear 5 and the third eccentric mass 6 are coaxial, and the fourth gear 7 and the fourth eccentric mass 8 are coaxial.

[0026] As a further embodiment of the present application, the auxiliary positioning tooling includes a sliding base plate 16, a first back plate 10 is fixedly installed on the side of the sliding base plate 16, and a second back plate 20 is slidably arranged on the sliding base plate 16, wherein the second back plate 20 and the first back plate 10 are slidingly connected, and the second back plate 20 and the first back plate 10 are correspondingly provided with a first axial hole 9, a second axial hole 11, a third axial hole 18 and a fourth axial hole 21, which are used for installation operations with the first gear 1, the second gear 3, the third gear 5 and the fourth gear 7 respectively.

[0027] Specifically, the present application first installs an axis fixing box 22 on the side of the first back plate 10 away from the second back plate 20 to achieve clamping and fixing of the installation axis 26, that is, when in use, firstly, each installation axis 26 is placed into the first axis hole 9, the second axis hole 11, the third axis hole 18 and the fourth axis hole 21, and the clamping assembly inside the axis fixing box 22 is used to achieve the clamping and fixing of each installation axis 26, and then the second back plate 20 is used to move toward the side away from the first back plate 10, at this time, the second back plate 20 and the first back plate 10 are used to receive the installation axis 26, and then the first gear 1 and the first eccentric block are placed. 2. The second gear 3, the second eccentric block 4, the third gear 5, the third eccentric block 6, the fourth gear 7 and the fourth eccentric block 8 are installed respectively so that they are installed at the end of the second back plate 20 away from the first back plate 10. During this process, the second back plate 20 gradually moves toward the first back plate 10 until the first gear 1, the first eccentric block 2, the second gear 3, the second eccentric block 4, the third gear 5, the third eccentric block 6, the fourth gear 7 and the fourth eccentric block 8 are installed. Then, the installation shaft 26 is installed inside the chassis. At this time, the installation shaft 26 is loosened by the shaft fixing box 22 so that the installation shaft 26 can realize the installation of the above components.

[0028] During this process, the first axial hole 9, the second axial hole 11, the third axial hole 18 and the fourth axial hole 21 respectively support the installation shaft 26, so that the position of the installation shaft 26 is fixed, avoiding the movement of the installation shaft 26 during installation. At the same time, the second back plate 20 and the first back plate 10 are used to support the installation shaft 26. When the first gear 1, the first eccentric block 2, the second gear 3, the second eccentric block 4, the third gear 5, the third eccentric block 6, the fourth gear 7 and the fourth eccentric block 8 are respectively installed, the installation shaft 26 is prevented from being partially deformed in the middle due to too much gravity and the installation shaft 26 is too long.

[0029] In order to realize the sliding effect of the second back panel 20 on the sliding bottom plate 16, a plurality of sliding blocks 15 are arranged at the bottom of the second back panel 20, and a plurality of sliding grooves 17 are evenly opened on the sliding bottom plate 16, wherein the sliding grooves 17 respectively cooperate with the sliding blocks 15 to slide. When the second back panel 20 moves, the second back panel 20 can slide along the sliding bottom plate 16 to maintain the horizontality of the sliding of the second back panel 20.

[0030] In order to further achieve the horizontality of the second back plate 20 when sliding and ensure the horizontal performance of the installation shaft 26, a second horizontal slide bar 19 is slidably arranged on the second back plate 20, wherein the end of the second horizontal slide bar 19 is fixedly installed on the first back plate 10, and a first horizontal slide bar 14 is slidably arranged on the first back plate 10, wherein the end of the first horizontal slide bar 14 is fixedly installed on the second back plate 20. In this process, the sliding connection between the second back plate 20 and the second horizontal slide bar 19 and the sliding connection between the first back plate 10 and the first horizontal slide bar 14 are used to ensure the horizontality of the second back plate 20 when sliding, thereby ensuring the horizontality of the installation shaft 26.

[0031] An end limiting plate 12 for limiting the ends thereof and an intermediate limiting plate 23 for fixedly connecting to the first back plate 10 or the second back plate 20 are fixed respectively at both ends of the first horizontal sliding bar 14 and the second horizontal sliding bar 19, and a limiting groove 13 for fitting with the intermediate limiting plate 23 is provided on the corresponding surface thereof, so as to realize the fitting effect of the second back plate 20 and the first back plate 10.

[0032] A first clamping groove 27 and a second clamping groove 24 are provided inside the shaft fixing box 22, wherein the first clamping groove 27 is larger than the second clamping groove 24 and the first clamping groove 27 and the second clamping groove 24 are connected, a pressure plate 28 is longitudinally slidably provided inside the first clamping groove 27, and a cylinder 25 for realizing longitudinal movement of the pressure plate 28 is provided on the pressure plate 28.

[0033] When in use, the installation shaft 26 first enters the interior of the first clamping groove 27, and then the installation shaft 26 enters the interior of the second clamping groove 24, and then the longitudinal movement of the cylinder 25 is utilized to realize the longitudinal movement of the pressure plate 28, thereby realizing the clamping effect on the installation shaft 26 and preventing the installation shaft 26 from moving easily.

[0034] When the utility model is in use, firstly, each installation shaft 26 is placed into the first shaft hole 9, the second shaft hole 11, the third shaft hole 18 and the fourth shaft hole 21 respectively, and the clamping assembly inside the shaft fixing box 22 is used to realize the clamping and fixing effect of each installation shaft 26, that is, the installation shaft 26 can enter the first clamping groove 27, and then the installation shaft 26 enters the second clamping groove 24, and then the longitudinal movement of the cylinder 25 is used to realize the longitudinal movement of the pressing plate 28, so as to realize the clamping effect of the installation shaft 26 and prevent the installation shaft 26 from moving easily; then the second back plate 20 is used to move toward the side away from the first back plate 10, at this time, the second back plate 20 and the first back plate 10 are used to bear the installation shaft 26, and then the first gear 1, the first eccentric block 2, the second gear 3, the second eccentric block 4, the third gear 5, The third eccentric mass 6, the fourth gear 7 and the fourth eccentric mass 8 are installed respectively so that they are installed at the end of the second back plate 20 away from the first back plate 10. During this process, the second back plate 20 gradually moves toward the first back plate 10 until the first gear 1, the first eccentric mass 2, the second gear 3, the second eccentric mass 4, the third gear 5, the third eccentric mass 6, the fourth gear 7 and the fourth eccentric mass 8 are installed. Then, the installation shaft 26 is installed inside the chassis. At this time, the installation shaft 26 is loosened by the shaft fixing box 22 so that the installation shaft 26 can realize the installation of the above-mentioned components. Subsequently, the end of the installation shaft 26 is further installed. During this process, the rotation center position of each installation shaft 26 is guaranteed, and during the installation process, the problem of deformation of the installation shaft 26 caused by the excessive length of the installation shaft 26 and the large number of components it carries is avoided.

[0035] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A high-precision assembly and positioning tool for four eccentric blocks, comprising a mounting shaft (26), characterized in that: The mounting shaft (26) is mounted through the first back plate (10) and the second back plate (20); the distance between the first back plate (10) and the second back plate (20) is adjustable, and the first back plate (10) and the second back plate (20) are respectively provided with a first shaft hole (9), a second shaft hole (11), a third shaft hole (18) and a fourth shaft hole (21).

2. The high-precision assembly and positioning tool for four eccentric blocks according to claim 1 is characterized in that: The first back plate (10) is fixed on the sliding bottom plate (16), and the second back plate (20) is slidably arranged on the sliding bottom plate (16).

3. The high-precision assembly and positioning tool for four eccentric blocks according to claim 1 is characterized in that: The first back plate (10) and the second back plate (20) are slidably connected, and a shaft fixing box (22) for clamping and fixing the installation shaft (26) is provided on a side of the first back plate (10) away from the second back plate (20).

4. The high-precision assembly and positioning tool for four eccentric blocks according to claim 3 is characterized in that: A first clamping groove (27) and a second clamping groove (24) for connecting with the installation shaft (26) are provided inside the shaft fixing box (22), and a cylinder (25) for limiting the installation shaft (26) is longitudinally slidably arranged inside the first clamping groove (27).

5. The high-precision assembly and positioning tool for four eccentric blocks according to claim 2 is characterized in that: A plurality of groups of sliding blocks (15) are fixed to the bottom of the second back plate (20), and a sliding groove (17) is provided on the sliding bottom plate (16), and the sliding groove (17) and the sliding block (15) are slidably connected.

6. The high-precision assembly and positioning tool for four eccentric blocks according to claim 2 is characterized in that: The first axial hole (9) and the second axial hole (11) have the same height, and the third axial hole (18) and the fourth axial hole (21) have the same height.

7. The high-precision assembly and positioning tool for four eccentric blocks according to claim 6 is characterized in that: The first shaft hole (9) and the second shaft hole (11) are respectively used to realize the installation of the first gear (1) and the second gear (3) on their respective installation shafts (26); the third shaft hole (18) and the fourth shaft hole (21) are respectively used to realize the installation of the third gear (5) and the fourth gear (7) on their respective installation shafts (26); the first gear (1) and the third gear (5) are meshed, the third gear (5) and the fourth gear (7) are meshed, the fourth gear (7) and the second gear (3) are meshed, and eccentric blocks are respectively coaxially arranged on the first gear (1), the second gear (3), the third gear (5) and the fourth gear (7).

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