Press lifting device

Abstract

The utility model discloses a press lifting device which comprises a belt wheel seat, a lifting nut is arranged in the middle of the belt wheel seat, a belt wheel is fixedly sleeved with the middle of the lifting nut, a mounting groove is formed in the middle of the belt wheel seat, and a lower deep groove ball bearing and a thrust ball bearing are mounted in the mounting groove from top to bottom. The lower end of the lifting nut is connected to the lower deep groove ball bearing and the thrust ball bearing, and a bearing blank cap is installed at the upper end of the belt wheel base. According to the lifting device, the bearing capacity of the device is improved, the requirement of large-scale testing machine equipment on the bearing capacity of the lifting device can be met, and meanwhile, friction and collision among mechanical parts are reduced, so that the noise during operation of the device is effectively reduced, the working environment is improved, in addition, the lifting process is more stable and smoother, and the working efficiency is improved. And the space occupied by the device during installation is reduced, and the layout flexibility of large testing machine equipment with limited space can be improved, so that the equipment is more compact.

Description

Technical Field

[0001] This utility model relates to the field of press lifting technology, and in particular to a press lifting device. Background Technology

[0002] In the operation of large testing machines, height adjustment is a crucial aspect, and the press lifting device plays an indispensable role. Traditional screw-type lifting systems were widely used in early industrial production and testing equipment, primarily relying on the rotation of a screw to achieve lifting. However, with technological advancements and increasing industrial demands, the drawbacks of traditional screw-type lifting systems have gradually become apparent.

[0003] Regarding noise, traditional screw jacks generate significant noise during operation due to friction between the screw and nut, as well as collisions between mechanical parts. This not only disrupts the working environment but can also negatively impact the physical and mental health of operators. Prolonged exposure to high-noise environments can easily lead to occupational diseases such as hearing loss.

[0004] In terms of space occupation, traditional screw jacks have a relatively complex structure and require a large space for installation. In some space-constrained testing equipment, this undoubtedly increases the overall size of the equipment and limits its layout and operational flexibility. To address these issues, we propose a press lifting device. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a press lifting device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A lifting device for a press includes a pulley seat, a lifting nut in the middle of the pulley seat, a pulley fixedly fitted in the middle of the lifting nut, an installation groove in the middle of the pulley seat, a lower deep groove ball bearing and a thrust ball bearing installed from top to bottom in the installation groove, the lower end of the lifting nut connected to the lower deep groove ball bearing and the thrust ball bearing, a bearing cap installed at the upper end of the pulley seat, an upper deep groove ball bearing installed around the upper end of the lifting nut, the upper deep groove ball bearing installed inside the bearing cap, a retaining key fixed on one side of the upper end of the pulley seat, a lifting screw threaded onto the internal thread of the lifting nut, and one side of the lifting screw engaging with one side of the retaining key.

[0008] Preferably, a bearing washer is installed between the deep groove ball bearing and the thrust ball bearing, and the bearing washer is disposed in the mounting groove.

[0009] Preferably, mounting plates are fixed on both sides of the pulley seat, the mounting plates and the pulley seat are integrally formed, and the mounting plates are provided with mounting holes.

[0010] Preferably, the pulley seat has a C-shaped structure.

[0011] Preferably, the pulley seat is made of ductile iron casting.

[0012] Preferably, a lead screw pad is fixed to the upper end of the lifting lead screw.

[0013] In this utility model, the pulley seat is made using ductile iron casting, resulting in superior overall performance and strong load-bearing capacity. During operation:

[0014] 1. Power input: An external motor drives the pulley to rotate. Since the pulley is fixedly mounted on the lifting screw nut, the rotation of the pulley will directly drive the lifting screw nut to rotate.

[0015] 2. Threaded drive: The lifting screw is screwed into the internal thread of the lifting screw nut. When the lifting screw nut rotates, according to the principle of threaded drive, the lifting screw will move up and down linearly under the action of the lifting screw nut.

[0016] 3. Positioning and guiding: One side of the lifting screw is engaged with the other side of the key. The key plays a role in positioning and guiding, ensuring that the lifting screw can only move in a straight line along the axis and will not rotate. At the same time, the upper and lower deep groove ball bearings and the thrust ball bearing provide support and lubrication for the rotation of the lifting screw nut, reducing friction and making the rotation smoother.

[0017] 4. Height Adjustment: The up and down movement of the lifting screw realizes the height adjustment function of the press, thereby meeting the height requirements of large testing equipment under different testing conditions. The lifting screw adopts a trapezoidal section screw and key cooperation to enable the device to achieve the lifting function.

[0018] This utility model has the following advantages:

[0019] 1. The pulley seat adopts the ductile iron casting process, which has excellent overall performance and strong load-bearing capacity. The thrust ball bearing can bear the overall axial force. Together with the upper and lower deep groove ball bearings, it improves the load-bearing capacity of the device and can meet the load-bearing capacity requirements of large testing machine equipment for lifting devices.

[0020] 2. The combination of deep groove ball bearings and thrust ball bearings forms a good rotating component, reduces friction and collision between mechanical parts, thereby effectively reducing noise during device operation, improving the working environment, and enhancing the smoothness of rotation.

[0021] 3. The lifting screw nut adopts a trapezoidal thread cross section, which improves the torque transmission capability. At the same time, the tight fit between the trapezoidal cross section screw and the key makes the lifting process more stable and smooth, and can maintain good performance even after long-term use.

[0022] 4. The pulley seat has a C-shaped structure, which facilitates the installation of the device and reduces the space occupied during installation. For large testing machines with limited space, it can improve the layout flexibility of the equipment and make the equipment more compact.

[0023] In summary, this invention improves the load-bearing capacity of the device, meeting the requirements of large testing machines for the load-bearing capacity of the lifting device. At the same time, it reduces friction and collision between mechanical parts, thereby effectively reducing the noise during device operation and improving the working environment. In addition, it makes the lifting process more stable and smooth, and also reduces the space occupied by the device during installation. For large testing machines with limited space, it can improve the layout flexibility of the equipment and make the equipment more compact. Attached Figure Description

[0024] Figure 1 This is a structural diagram of the present invention.

[0025] In the diagram: 1. Lifting screw, 2. Lifting nut, 3. Deep groove ball bearing, 4. Thrust ball bearing, 5. Bearing washer, 6. Pulley, 7. Mounting plate, 8. Pulley seat, 9. Bearing cap, 10. Screw pad, 11. Locking key, 12. Mounting hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figure 1 A press lifting device includes a pulley seat 8, a lifting screw nut 2 in the middle of the pulley seat 8, and a pulley 6 fixedly mounted in the middle of the lifting screw nut 2. The fixed mounting method of the pulley 6 and the lifting screw nut 2 ensures the high efficiency of power transmission. The key connection method ensures that there will be no slippage during rotation, thereby stably transmitting power to the lifting screw nut 2.

[0028] The middle part of the pulley seat 8 is provided with an installation groove. The lower deep groove ball bearing 3 and the thrust ball bearing 4 are installed in the installation groove from top to bottom. The lower deep groove ball bearing 3 mainly bears the radial load, and can also bear a certain axial load to ensure the radial stability of the lifting nut 2 during rotation.

[0029] The lower end of the lifting screw nut 2 is connected to the lower deep groove ball bearing 3 and the thrust ball bearing 4. The thrust ball bearing 4 mainly bears the axial load. When the press is working, it can effectively bear the axial force from the lifting screw 1 and ensure the stability of the device. The lower end of the lifting screw nut 2 is connected to the lower deep groove ball bearing 3 and the thrust ball bearing 4, so that the lifting screw nut 2 can rotate smoothly under the support of the bearings.

[0030] A bearing cap 9 is installed on the upper end of the pulley seat 8. A deep groove ball bearing 13 is installed around the upper end of the lifting nut 2. The deep groove ball bearing 13 is installed inside the bearing cap 9. A retaining key 11 is fixed on one side of the upper end of the pulley seat 8. A lifting screw 1 is screwed into the internal thread of the lifting nut 2. One side of the lifting screw 1 is engaged with one side of the retaining key 11. The size of the retaining key 11 is determined according to the force of the lifting screw 1 to ensure that it will not be damaged or worn excessively during long-term use.

[0031] A bearing washer 5 is installed between the deep groove ball bearing 3 and the thrust ball bearing 4, and the bearing washer 5 is set in the mounting groove. The thickness of the bearing washer 5 is selected according to the bearing model.

[0032] Mounting plates 7 are fixed on both sides of the pulley seat 8. The mounting plates 7 and the pulley seat 8 are integrally formed. Mounting holes 12 are provided on the mounting plates 7. The pulley seat 8 has a C-shaped structure. The pulley seat 8 is made of ductile iron casting material. The C-shaped structure facilitates the installation of the device and reduces the space occupied by the device during installation. For large testing machine equipment with limited space, it can improve the layout flexibility of the equipment and make the equipment more compact.

[0033] The upper end of the lifting screw 1 is fixed with a screw pad 10. The screw pad 10 is made of high-hardness steel and undergoes surface hardening and other treatments to improve its wear resistance and impact resistance.

[0034] In this utility model, the pulley seat 8 is made using ductile iron casting, resulting in superior overall performance and strong load-bearing capacity. During operation:

[0035] 1. Power input: An external motor drives the pulley 6 to rotate. Since the pulley 6 is fixedly mounted on the lifting screw nut 2, the rotation of the pulley 6 will directly drive the lifting screw nut 2 to rotate.

[0036] 2. Threaded transmission: The lifting screw 1 is screwed into the internal thread of the lifting screw nut 2. When the lifting screw nut 2 rotates, according to the principle of threaded transmission, the lifting screw 1 will make up-down linear motion under the action of the lifting screw nut 2.

[0037] 3. Positioning and guiding: One side of the lifting screw 1 is engaged with one side of the key 11. The key 11 plays a positioning and guiding role, ensuring that the lifting screw 1 can only move linearly along the axis and will not rotate. At the same time, the upper and lower deep groove ball bearings and the thrust ball bearing 4 provide support and lubrication for the rotation of the lifting screw nut 2, reduce friction, and make the rotation smoother.

[0038] 4. Height Adjustment: The up and down movement of the lifting screw 1 realizes the height adjustment function of the press, thereby meeting the height requirements of large testing machine equipment under different testing conditions. The lifting screw 1 adopts a trapezoidal section screw and key cooperation to enable the device to realize the lifting function.

[0039] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A lifting device for a press, comprising a pulley seat (8), characterized in that, The pulley seat (8) has a lifting nut (2) in the middle, and a pulley (6) is fixedly fitted in the middle of the lifting nut (2). The pulley seat (8) has an installation groove in the middle, and a lower deep groove ball bearing (3) and a thrust ball bearing (4) are installed in the installation groove from top to bottom. The lower end of the lifting nut (2) is connected to the lower deep groove ball bearing (3) and the thrust ball bearing (4). The upper end of the pulley seat (8) is fitted with a bearing cap (9). The upper end of the lifting nut (2) is fitted with an upper deep groove ball bearing (13). The upper deep groove ball bearing (13) is installed in the bearing cap (9). A retaining key (11) is fixed on one side of the upper end of the pulley seat (8). A lifting screw (1) is screwed into the internal thread of the lifting nut (2). One side of the lifting screw (1) is engaged with one side of the retaining key (11).

2. The press lifting device according to claim 1, characterized in that: A bearing washer (5) is installed between the deep groove ball bearing (3) and the thrust ball bearing (4), and the bearing washer (5) is set in the mounting groove.

3. The press lifting device according to claim 1, characterized in that: Mounting plates (7) are fixed on both sides of the pulley seat (8). The mounting plates (7) and the pulley seat (8) are integrally formed. Mounting holes (12) are provided on the mounting plates (7).

4. A press lifting device according to claim 1, characterized in that: The pulley seat (8) has a C-shaped structure.

5. A press lifting device according to claim 1, characterized in that: The pulley seat (8) is made of ductile iron casting.

6. A press lifting device according to claim 1, characterized in that: The upper end of the lifting screw (1) is fixed with a screw pad (10).

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