Lifting mechanism of 20T manipulator
By using the fixed seat and pin device designed with an integral forging in the lifting mechanism of the operating machine, the problem of easy breakage of the split welded fixed seat is solved, the structural strength and production efficiency are improved, and the failure downtime is reduced.
Patent Information
- Application Number
- CN202420197344.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-01-26
AI Technical Summary
In the lifting mechanism of the existing operating machine, the split welding type fixed seat is prone to break at the welding point, causing the frame to swing and stress concentration, affecting the production capacity of the equipment.
The first and second fixing seats designed with the integral forging are integrated and molded by the same metal component to avoid structural defects of split welding, and are fixed using pin devices and reaming bolts where necessary.
It effectively avoids fracture at the welding of fixed seats, improves structural strength, enhances the production efficiency of the operating machine, and reduces fault downtime and economic losses.
Smart Images
Figure CN222569163U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical processing equipment, in particular to a lifting mechanism of a 20T manipulator. Background Art
[0002] The manipulator, also known as the hydraulic forging manipulator, is an auxiliary forging machine that uses clamping forging blanks to cooperate with heavy forging presses to complete major actions such as feeding, rotation and turning. It can also complete the forward and backward, lifting and tilting of the clamp frame, as well as the clamping, loosening and rotation of the clamp head. It is an important supporting equipment for heavy forging presses. The lifting mechanism of the manipulator is an important load-bearing part, but for the current lifting mechanism of the manipulator, the fixed seats at both ends of the intermediate pipe of the lifting mechanism are designed as split-welded structural parts, and the thickness of the plate of the fixed seat is relatively thin. Therefore, during the production process of the manipulator, when the biased load of the manipulator clamping exceeds the frame load, the frame will swing to cause stress concentration, and the original welding part of the fixed seat will break, which will eventually affect the production capacity of the manipulator equipment. Utility Model Content
[0003] The purpose of the utility model is to provide a lifting mechanism for a 20T manipulator to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting mechanism of a 20T manipulator, the lifting mechanism comprising an intermediate tube, a first fixed seat and a second fixed seat, wherein the intermediate tube is sleeved on the lifting shaft along a first direction, and both ends of the lifting shaft are fixed on the manipulator, the intermediate tube can move relative to the lifting shaft along the first direction, the first direction is the axial direction of the lifting shaft, the first fixed seat comprises a first fixed tube and two first fixed plates, the two first fixed plates and the first fixed tube are integrally formed by the same metal component, so that the first fixed seat is an integral forging; wherein: the first fixed tube is fixedly connected to one end of the pipe mouth of the intermediate tube, and the first fixed tube is sleeved on the lifting shaft, the two first fixed plates are both led out along the tangent direction of the first fixed tube, the second fixed seat comprises a second fixed tube and two second fixed plates, the two second fixed plates and the second fixed tube are integrally formed by the same metal component, so that the second fixed seat is an integral forging; wherein: the second fixed tube is sleeved on the lifting shaft, the second fixed tube can rotate relative to the lifting shaft around the first direction, and the two second fixed plates are both led out along the tangent of the second fixed tube.
[0005] Based on the above technical features, the first fixing seat and the second fixing seat at both ends of the intermediate tube are integrally processed and formed from the same metal component into an integral forging. The improved lifting mechanism avoids the phenomenon of split welded fixing seats breaking at the welding points, while also correspondingly improving the structural strength of the fixing seat and the production efficiency of the operating machine, and correspondingly reducing the downtime of the operating machine and avoiding the economic losses caused by the downtime of the operating machine.
[0006] Preferably, in the present technical solution, the lifting mechanism also includes a first pin shaft and a second pin shaft; the first fixing plate is perpendicular to the first direction, and a first pin shaft hole is provided on the first fixing plate, the first pin shaft passes through the two first pin shaft holes, and the first pin shaft is fixedly connected to the first fixing seat; the second fixing plate is perpendicular to the first direction, and a second pin shaft hole is provided on the second fixing plate, the second pin shaft passes through the two second pin shaft holes, and the second pin shaft is fixedly connected to the second fixing seat.
[0007] Based on the above technical features, the lifting mechanism is connected to the clamp frame through a pin device, so that the impact of the lifting mechanism is reduced when the clamp frame completes actions such as tilting and rotating, making the clamp frame more flexible when performing actions such as tilting and rotating. At the same time, the lifting mechanism is connected to the clamp frame through a pin device, which also facilitates the disassembly and assembly between the lifting mechanism and the clamp frame.
[0008] Preferably in the present technical solution, the end of the first pin shaft is provided with a flange cover, and the flange cover is embedded in the first pin shaft hole, and the flange cover can fix the first pin shaft to the first fixing seat by a plurality of bolts; the end of the second pin shaft is provided with a flange cover, and the flange cover is embedded in the second pin shaft hole, and the flange cover can fix the second pin shaft to the second fixing seat by a plurality of bolts; preferably, the spiral is a hinged hole bolt.
[0009] Based on the above technical features, a reamed hole bolt is used as a fixed connection device between the pin device and the fixed seat, which avoids the pin falling off due to loosening during the previous ordinary bolt connection.
[0010] Preferably in the present technical solution, the lifting mechanism also includes a welding tube and a copper sleeve, the welding tube is sleeved on the lifting shaft, and the pipe mouth at one end of the welding tube is fixedly connected to the pipe mouth at the other end of the intermediate tube, the copper sleeve is sleeved on the tube wall of the welding tube, and the second fixed tube is sleeved on the copper sleeve.
[0011] Based on the above technical features, the copper sleeve can protect the second fixed seat and the intermediate tube when the lifting mechanism is lifting. At the same time, after the operating machine has been working for a long time, in order to ensure the lifting effect of the lifting mechanism and the flexibility of the second fixed seat when rotating relative to the intermediate tube, the copper sleeve in the lifting mechanism can be disassembled and replaced separately.
[0012] Preferably in the present technical solution, the lifting mechanism further comprises an end cover, the end cover is sleeved on the lifting shaft, the end cover is fixedly connected to the other end of the welding pipe, and the end cover cooperates with the second fixed pipe to seal the copper sleeve.
[0013] Based on the above technical features, the end cover can protect the copper sleeve and prevent the copper sleeve from being invaded by external air or on-site impurities.
[0014] Preferably in the present technical solution, the material of the first fixing seat and the second fixing seat integral forging is 35CrMo.
[0015] Based on the above technical features, the integral forgings made of 35CrMo material can enhance the hardness, toughness and wear resistance of the fixed seat, so that the manipulator has ideal rigidity characteristics in the entire working space, while reducing the flexible deformation of the manipulator and improving the operating accuracy of the end effector.
[0016] Preferably in the present technical solution, the thickness of the first fixing plate and the second fixing plate is 55-65 mm; preferably, the length of the first pin shaft and the second pin shaft is 360-380 mm.
[0017] Based on the above technical features, by increasing the plate thickness of the fixing seat and adaptively adjusting the length of the pin device, it can improve the overall strength of the fixing seat and ensure that the pin device has a suitable installation size. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a structural diagram of the lifting mechanism in the embodiment of the utility model;
[0019] Figure 2 This is a schematic diagram of the structure of the first fixing seat in the embodiment of the utility model;
[0020] Figure 3 It is a side view of the first fixing seat in the embodiment of the utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the second fixing seat in the embodiment of the utility model;
[0022] Figure 5 It is a side view of the second fixing seat in the embodiment of the utility model;
[0023] Figure 6It is a schematic diagram of the structure of the first pin shaft or the second pin shaft in the embodiment of the utility model;
[0024] Figure 7 It is a structural schematic diagram of the first pin shaft or the second pin shaft and the flange gland in the embodiment of the utility model;
[0025] Figure 8 It is a side sectional view of the flange gland in the embodiment of the utility model;
[0026] Fig. 9 It is a schematic structural diagram of a rotating frame plate and a buffer device in an embodiment of the utility model.
[0027] In the figure: 1, intermediate tube; 2, first fixing seat; 2A, first fixing tube; 2B, first fixing plate; 2C, first pin hole; 3, second fixing seat; 3A, second fixing tube; 3B, second fixing plate; 3C, second pin hole; 4, first pin; 5, second pin; 6, flange gland; 7, welding tube; 8, copper sleeve; 9, buffer device; 9A, buffer pad; 9B, buffer; 10, adapter plate; 11, end cover. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0030] In addition, it should be understood that for the convenience of description, the sizes of various components shown in the drawings are not drawn according to the actual proportional relationship.
[0031] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.
[0032] like Figure 1-Figure 9As shown, the utility model provides a technical solution: a lifting mechanism of a 20T manipulator, wherein the lifting mechanism includes an intermediate tube 1, a first fixed seat 2, a second fixed seat, a first pin shaft and a second pin shaft.
[0033] Specific as Figure 1 As shown, the intermediate tube 1 is sleeved on the lifting shaft of the operating machine along a first direction, and both ends of the lifting shaft are fixed on the operating machine. The intermediate tube 1 can move relative to the lifting shaft along the first direction, and the first direction is the axial direction of the lifting shaft; the first fixed seat 2 and the second fixed seat 3 are respectively an integral forging, so as to avoid the phenomenon of fracture at the welding point of the previous split welded fixed seat, and at the same time improve the structural strength of the fixed seat and the production efficiency of the operating machine, and correspondingly reduce the downtime of the operating machine and avoid the economic losses caused by the downtime of the operating machine. At the same time, in this embodiment, the material of the integral forgings of the first fixed seat 2 and the second fixed seat 3 is optimized to 35CrMo, so as to enhance the hardness, toughness and wear resistance of the fixed seat, so that the operating machine has ideal stiffness characteristics in the entire working space, and at the same time reduce the flexible deformation of the operating machine to improve the operating accuracy of the end effector.
[0034] Further, such as Figure 1-Figure 3 As shown, the first fixing seat 2 includes a first fixing tube 2A and two first fixing plates 2B, and the two first fixing plates 2B and the first fixing tube 2A are integrally formed by the same metal component, so that the first fixing seat 2 is an integral forging; wherein: the first fixing tube 2A is fixedly connected to one end of the tube mouth of the intermediate tube 1, and the first fixing tube 2A is sleeved on the lifting shaft, and the two first fixing plates 2B are both led out along the tangent direction of the first fixing tube 2A, and the thickness of the first fixing plate 2B is 55-65mm, which can be any one of 55mm, 56mm, 57mm, 58mm, 59mm, 60mm, 61mm, 62mm, 63mm, 64mm and 65mm. ; Preferably, in the present embodiment, the length of the first fixed tube 2A is 180 mm, the wall thickness is 70 mm, and the opening cross-sectional size of the fixed tube is 230 mm. The first fixed tube 2A and the first fixed plate 2B are chamfered by 20 mm at the connection. At one end of the connection, the thickness of the first fixed plate 2B is 60 mm and the distance between the two fixed plates is 250 mm. At the end away from the connection, the thickness of the first fixed plate 2B is 55 mm and the distance between the two fixed plates is 260 mm. Specifically, the specifications and dimensions of the above first fixed tube 2A and the first fixed plate 2B can be adaptively adjusted according to the cross-sectional dimensions of the lifting shaft and the load weight of the operating machine.
[0035] Further, such as Figure 1 , Figure 4 and Figure 5As shown, the second fixing seat 3 includes a second fixing tube 3A and two second fixing plates 3B, and the two second fixing plates 3B and the second fixing tube 3A are integrally formed by the same metal component so that the second fixing seat 3 is an integral forging; wherein: the second fixing tube 3A is sleeved on the lifting shaft, and the second fixing tube 3A can rotate relative to the lifting shaft around the first direction, and the two second fixing plates 3B are both led out along the tangent of the second fixing tube 3A, and the thickness of the first fixing plate 2B is 55-65mm, which can be any one of 55mm, 56mm, 57mm, 58mm, 59mm, 60mm, 61mm, 62mm, 63mm, 64mm and 65mm; further, the lifting mechanism also includes a welding tube 7 and a copper sleeve 8, the welding tube 7 is sleeved on the lifting shaft, and the welding tube 7 The pipe mouth at one end is fixedly connected to the pipe mouth at the other end of the intermediate pipe 1, the copper sleeve 8 is sleeved on the pipe wall of the welding pipe 7, and the second fixed pipe 3A is sleeved on the copper sleeve 8; the lifting mechanism also includes an end cover 11, the end cover 11 is sleeved on the lifting shaft, the end cover 11 is fixedly connected to the pipe mouth at the other end of the welding pipe 7, and the end cover 11 and the second fixed pipe 3A are used to seal the copper sleeve 8, and the copper sleeve 8 can protect the second fixed seat 3 and the intermediate pipe 1 when the lifting mechanism is lifting. Since the end cover 11 is fixed to the welding pipe 7 by bolt connection, the end cover 11 can be easily removed to replace its copper sleeve 8; at the same time, it should be clear in this embodiment that since the second fixed seat 3 is hinged on the intermediate pipe 1, when the second fixed seat 3 rotates relative to the intermediate pipe 1, it can drive the intermediate pipe 1, the first fixed seat 2 and the clamp frame to rise and fall.
[0036] Further preferably, in the present embodiment, the length of the second fixed tube 3A is 190 mm, the wall thickness is 35 mm, and the opening cross-sectional size of the fixed tube is 320 mm. The second fixed tube 3A and the second fixed plate 3B are chamfered by 20 mm at the connection. At one end of the connection, the thickness of the second fixed plate 3B is 60 mm and the distance between the two fixed plates is 250 mm. At the end away from the connection, the thickness of the second fixed plate 3B is 55 mm and the distance between the two fixed plates is 260 mm. Specifically, the specifications and dimensions of the above second fixed tube 3A and the second fixed plate 3B can be adaptively adjusted according to the cross-sectional dimensions of the lifting shaft and the load weight of the operating machine. The cross-sectional shape of the tube wall of the welding tube 7 is an "inverted L-shape", so as to facilitate the welding of the welding tube 7 with the intermediate tube 1 and the socket connection of the welding tube 7 with the second fixed tube 2B. The thickness of the copper sleeve 8 is 15 mm.
[0037] Further, such as Figure 2-Figure 7As shown, the first fixing plate 2B is perpendicular to the first direction, and the first fixing plate 2B is provided with a first pin shaft hole 2C, the first pin shaft 4 passes through the two first pin shaft holes 2C, and the first pin shaft 4 is fixedly connected to the first fixing seat 2; the second fixing plate 3B is perpendicular to the first direction, and the second fixing plate 3B is provided with a second pin shaft hole 3C, the second pin shaft 5 passes through the two second pin shaft holes 3C, and the second pin shaft 5 is fixedly connected to the second fixing seat 3, the length of the first pin shaft 4 and the second pin shaft 5 is 360-380mm, which can be adaptively adjusted according to the plate thickness of the first fixing plate 2B and the second fixing plate 3B; preferably, in this embodiment, the first pin shaft hole 2C and The hole shapes of the second pin shaft holes 3C are the same and are respectively adapted to the outline dimensions of the first pin shaft 4 and the second pin shaft 5. Specifically, a cylindrical hole with a cross-sectional dimension of 98 mm and a stepped hole with cross-sectional dimensions of 102 mm and 120 mm are respectively provided on the two first fixing plates 2B, and a cylindrical hole with a cross-sectional dimension of 98 mm and a stepped hole with cross-sectional dimensions of 102 mm and 120 mm are respectively provided on the two second fixing plates 3B. Specifically, the opening shapes and outline dimensions of the above first pin shaft holes 2C and the second pin shaft holes 3C can be adaptively adjusted according to the specifications of the first pin shaft 4 and the second pin shaft 5 and the load size of the operating machine.
[0038] Further, if Figure 6-Figure 8As shown, the end of the first pin shaft 4 and the end of the second pin shaft 5 are both provided with a flange pressure cover 6, and the two flange pressure covers 6 are respectively embedded in the first pin shaft hole 2C and the second pin shaft hole 3C, and the two flange pressure covers 6 can respectively fix the first pin shaft and the second pin shaft 5 to the first fixing seat 2 and the second fixing seat 3 through a plurality of bolts; preferably, in this embodiment, the bolts can preferably use hinged hole bolts to avoid loosening during ordinary bolt connection and cause the pin shaft to fall off and other faults, the first pin shaft 4 and the second pin shaft 5 use pin shaft devices of the same material and specification to facilitate their replacement, the end of the first pin shaft 4 and the second pin shaft 5 are stepped end heads with cross-sectional dimensions of 120mm and 102mm, which are adapted to the stepped holes of the first pin shaft hole 2C and the second pin shaft hole 3C, and the cross-sectional dimensions of the shaft bodies of the first pin shaft 4 and the second pin shaft 5 are The cross-sectional dimension of the shaft tail end is 100mm, and the cross-sectional dimension of one end of the shaft tail is 98mm, which is compatible with the cylindrical holes of the first pin shaft hole 2C and the second pin shaft hole 3C, and the first pin shaft 4 and the second pin shaft 5 are chamfered at the parts where the cross-sectional dimensions change to improve the strength. The cross-sectional dimension of the flange cover 6 is 108mm, the thickness is 15mm, and six bolt holes with a cross-sectional dimension of 11mm are opened on the flange cover 6, and the distance between the centers of any two bolt holes is 74.6mm. Specifically, the specifications and dimensions of the above first pin shaft 4 and the second pin shaft 5 can be adaptively adjusted according to the opening shape and contour dimensions of the first pin shaft hole 2C and the second pin shaft hole 3C and the load size of the operating machine. At the same time, the specifications and dimensions of the flange cover 6 and the setting of the bolt holes also need to be adaptively adjusted according to the load size of the operating machine.
[0039] like Figure 1 and Fig. 9 As shown, the lifting mechanism also includes a turret plate 10 and a buffer device 9, wherein the turret plate 10 includes two pieces, which are respectively welded to the left and right sides of the intermediate tube 1. At the same time, in order to strengthen the fixing effect between the turret plate 10 and the intermediate tube 1, in this embodiment, a reinforcing plate is respectively welded between the two turret plates 10 and the intermediate tube 1. The buffer device 9 includes a buffer pad 9A and a buffer 9B. The buffer device 9 is used to buffer the clamp frame during rotation and tilting to protect the operating machine. The buffer pad 9A is respectively fixed to the two turret plates 10 by bolts to facilitate disassembly and installation. The buffer 9B is a purchased part and is fixed to the buffer pad 9A. The buffer 9B is a rubber buffer with a buffer capacity within 0.8KN.m, a maximum buffer stroke of 45mm and a maximum buffer force of 63KN.
[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A lifting mechanism for a 20T manipulator, characterized in that: The lifting mechanism comprises: An intermediate tube (1), the intermediate tube (1) being sleeved on the lifting shaft along a first direction, and the two ends of the lifting shaft being fixed on the operating machine, the intermediate tube (1) being movable relative to the lifting shaft along the first direction, the first direction being the axial direction of the lifting shaft; A first fixing seat (2), the first fixing seat (2) comprising a first fixing tube (2A) and two first fixing plates (2B), the two first fixing plates (2B) and the first fixing tube (2A) being integrally formed from the same metal component, so that the first fixing seat (2) is an integral forging; wherein: the first fixing tube (2A) is fixedly connected to one end of the tube mouth of the intermediate tube (1), and the first fixing tube (2A) is sleeved on the lifting shaft, and the two first fixing plates (2B) are both led out along the tangent direction of the first fixing tube (2A); A second fixed seat (3), the second fixed seat (3) comprises a second fixed tube (3A) and two second fixed plates (3B), the two second fixed plates (3B) and the second fixed tube (3A) are integrally formed by the same metal component, so that the second fixed seat (3) is an integral forging; wherein: the second fixed tube (3A) is sleeved on the lifting shaft, the second fixed tube (3A) can rotate relative to the lifting shaft around the first direction, and the two second fixed plates (3B) are both led out along the tangent of the second fixed tube (3A).
2. The lifting mechanism of a 20T manipulator according to claim 1, characterized in that: The lifting mechanism further comprises a first pin shaft (4) and a second pin shaft (5); The first fixing plate (2B) is perpendicular to the first direction, and the first fixing plate (2B) is provided with first pin shaft holes (2C), the first pin shaft (4) passes through the two first pin shaft holes (2C), and the first pin shaft (4) is fixedly connected to the first fixing seat (2); The second fixing plate (3B) is perpendicular to the first direction, and the second fixing plate (3B) is provided with second pin shaft holes (3C), the second pin shaft (5) passes through the two second pin shaft holes (3C), and the second pin shaft (5) is fixedly connected to the second fixing seat (3).
3. The lifting mechanism of a 20T manipulator according to claim 2, characterized in that: The end of the first pin shaft (4) is provided with a flange cover (6), and the flange cover (6) is embedded in the first pin shaft hole (2C), and the flange cover (6) can be used to fix the first pin shaft (4) to the first fixing seat (2) through a plurality of bolts; The end of the second pin shaft (5) is provided with a flange cover (6), and the flange cover (6) is embedded in the second pin shaft hole (3C). The flange cover (6) can fix the second pin shaft (5) to the second fixing seat (3) by means of a plurality of bolts.
4. The lifting mechanism of a 20T manipulator according to claim 3, characterized in that: The bolt is a reamed hole bolt.
5. The lifting mechanism of a 20T manipulator according to claim 1, characterized in that: The lifting mechanism also includes a welding tube (7) and a copper sleeve (8); the welding tube (7) is sleeved on the lifting shaft, and the pipe mouth at one end of the welding tube (7) is fixedly connected to the pipe mouth at the other end of the intermediate tube (1); the copper sleeve (8) is sleeved on the tube wall of the welding tube (7); and the second fixed tube (3A) is sleeved on the copper sleeve (8).
6. A lifting mechanism of a 20T manipulator according to claim 5, characterized in that: The lifting mechanism further comprises an end cover (11), wherein the end cover (11) is sleeved on the lifting shaft, the end cover (11) is fixedly connected to the other end of the welding pipe (7), and the end cover (11) cooperates with the second fixed pipe (3A) to seal the copper sleeve (8).
7. The lifting mechanism of a 20T manipulator according to claim 1, characterized in that: The material of the first fixing seat (2) and the second fixing seat (3) integral forgings is 35CrMo.
8. The lifting mechanism of a 20T manipulator according to claim 1, characterized in that: The thickness of the first fixing plate (2B) and the second fixing plate (3B) is 55-65 mm.
9. The lifting mechanism of a 20T manipulator according to claim 2, characterized in that: The lengths of the first pin shaft (4) and the second pin shaft (5) are 360-380 mm.