Excavator universal joint seat clamp

By designing an excavator universal joint seat clamp with adjustment and clamping components, the problem of inconvenient installation in the existing technology has been solved, enabling quick fixing and disassembly, and improving production efficiency and applicability.

CN223981694UActive Publication Date: 2026-03-10YANTAI YUFENG INTELLIGENT EQUIPMENT MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

The existing excavator universal joint seat clamps are installed by locking with multiple sets of bolts, which makes installation inconvenient, time-consuming, and affects production efficiency.

Method used

The fixture design combines adjustment and clamping components, including an adjustment screw, connecting ring, turntable, threaded sleeve, T-block, positioning frame, positioning screw, connecting plate, electro-hydraulic push cylinder, and limit seat. The combination of adjustment and clamping components enables quick fixing and disassembly.

Benefits of technology

It enables convenient installation and disassembly, improves production efficiency, is applicable to processing tables of different specifications, and enhances applicability and practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a clamp for a universal joint seat of an excavator, which belongs to the technical field of excavator parts, has a simpler integral structure, is convenient to fixedly mount on a processing table after being put into use, is convenient to fixedly clamp a universal joint part to be processed, and is simpler in mounting and dismounting mode and lower in cost compared with the prior art. In addition, the device can be suitable for machining tables of different specifications, the applicability of the device is improved, the comprehensive practicability is good, and application and popularization are facilitated. The four positioning frames are arranged at the bottom of the base through adjusting assemblies, mounting holes are formed in positioning clamps of the four positioning frames, and threaded rings are arranged in the mounting holes; the four positioning screws are in threaded connection with the positioning frame through threaded rings, the positioning screws are fixedly connected with positioning seats, and the other ends of the positioning screws are fixedly connected with connecting discs; and the clamping assembly is arranged on the base.
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Description

Technical Field

[0001] This utility model relates to the field of excavator parts technology, and in particular to an excavator universal joint seat clamp. Background Technology

[0002] As is well known, a universal joint is a mechanical component that enables variable-angle power transmission. It is used in locations where the direction of the drive shaft needs to be changed. It is the "joint" component of the universal transmission device in a car's drive system. In a front-engine, rear-wheel-drive vehicle, the universal joint transmission device is installed between the transmission output shaft and the drive axle final drive input shaft. In a front-engine, front-wheel-drive vehicle, the drive shaft is omitted, and the universal joint is installed between the front axle half-shaft, which is responsible for both driving and steering, and the wheels.

[0003] Currently, universal joint seats are also used in excavators. In the process of processing universal joint seats, clamps are required. However, the inventor of this utility model has found that existing universal joint seat clamps are generally installed and fixed by using multiple sets of bolts. This installation method is not convenient, consumes a lot of time, wastes labor, and results in low production efficiency and insufficient practicality.

[0004] Therefore, in response to the aforementioned technologies, we propose an excavator universal joint seat clamp. Utility Model Content

[0005] The purpose of this utility model is to provide an excavator universal joint seat clamp to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A universal joint seat clamp for excavators, comprising:

[0008] Base;

[0009] Four positioning frames are provided, each of which is set at the bottom of the base via an adjustment assembly. Each positioning frame has a mounting hole and a threaded ring is provided in the mounting hole.

[0010] Four positioning screws are provided. Each positioning screw is threaded to the positioning frame via a threaded ring. A positioning seat is fixedly connected to each positioning screw, and a connecting plate is fixedly connected to the other end of each positioning screw.

[0011] A clamping assembly, which is disposed on a base, is used to fix and limit the universal joint component to be processed.

[0012] As a further embodiment of this utility model: the adjustment component includes an adjustment screw, which is rotatably mounted in the base through an adjustment groove. One end of the adjustment screw extends to the outside of the base through a connecting ring and is fixedly connected to a turntable. A T-shaped block is threaded onto the outside of the adjustment screw through a threaded sleeve, and one end of the T-shaped block is fixedly connected to a positioning frame.

[0013] As a further embodiment of this utility model: the clamping assembly includes two supports, both of which are fixedly connected to the base. One end of one support is fixedly connected to three connecting columns, and the other support is provided with an electro-hydraulic push cylinder. The output end of the electro-hydraulic push cylinder and the other end of the three connecting columns are both fixedly connected to a limit seat.

[0014] As a further improvement of this utility model, a rubber gasket is provided at the opposite end of each of the two limiting seats.

[0015] As a further improvement of this utility model: the base is provided with an installation groove, and an anti-slip pad is provided in the installation groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In use, the base is placed on the processing table. An adjustment assembly, consisting of an adjusting screw, connecting ring, turntable, threaded sleeve, and T-block, adjusts the positioning frame to the appropriate position. The positioning screw is then rotated via the connecting plate, and the screw and threaded ring work together to ensure a tight fit between the positioning seat and the bottom of the processing table, thus fixing and limiting the base. Next, a clamping assembly is used to place the universal joint component to be processed onto the base. The electro-hydraulic pusher is then activated, causing its output to move the positioning seat, resulting in a tight fit between the universal joint component and the two positioning seats, achieving the purpose of fixing and clamping the universal joint component. The overall structure is relatively simple, making it easy to install on the processing table after deployment, facilitating the clamping and fixing of the universal joint component. Compared to existing technologies, the installation and disassembly methods are simpler, improving usability. It is also suitable for processing tables of different specifications, enhancing its applicability and overall practicality, making it suitable for widespread use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the overall main view of this utility model;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of a partial cross-section of the overall main view of this utility model;

[0020] Figure 3 This utility model Figure 2 A magnified schematic diagram of the local structure at point A;

[0021] Figure 4 This is a schematic diagram of the overall front view of the present invention.

[0022] In the diagram: 1. Base; 2. Positioning frame; 3. Threaded ring; 4. Positioning screw; 5. Positioning seat; 6. Connecting plate; 7. Adjusting screw; 8. Connecting ring; 9. Turntable; 10. Threaded sleeve; 11. T-block; 12. Support; 13. Connecting column; 14. Electro-hydraulic push cylinder; 15. Limit seat; 16. Rubber pad; 17. Anti-slip pad. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Please see Figures 1-4 In this embodiment of the utility model, an excavator universal joint seat clamp includes:

[0026] Base 1;

[0027] Four positioning frames 2 are set at the bottom of the base 1 through an adjustment component. The positioning frames 2 have mounting holes and threaded rings 3 are provided in the mounting holes.

[0028] Four positioning screws 4 are threaded to the positioning frame 2 via threaded rings 3. A positioning seat 5 is fixedly connected to the positioning screw 4, and a connecting plate 6 is fixedly connected to the other end of the positioning screw 4.

[0029] The clamping assembly is mounted on the base 1 and is used to fix and limit the universal joint component to be processed.

[0030] When using this excavator universal joint seat clamp, after the base 1 is placed on the processing table, the multiple positioning frames 2 can be adjusted to the appropriate position by setting an adjustment component. Then, the positioning screw 4 is rotated by the connecting plate 6. With the cooperation of the positioning screw 4 and the threaded ring 3, the positioning seat 5 is tightly fitted to the bottom of the processing table, thereby fixing and limiting the base 1. Then, by setting a clamping component, the universal joint component to be processed is placed on the base 1, thereby achieving the purpose of fixing and clamping the universal joint component.

[0031] exist Figures 1-4 The adjustment assembly includes an adjustment screw 7, which is rotatably mounted in the base 1 through an adjustment groove. One end of the adjustment screw 7 extends to the outside of the base 1 through a connecting ring 8 and is fixedly connected to a turntable 9. A T-shaped block 11 is threaded onto the outside of the adjustment screw 7 through a threaded sleeve 10. One end of the T-shaped block 11 is fixedly connected to the positioning frame 2.

[0032] The excavator universal joint seat fixture, through this structure, allows the adjustment screw 7 to rotate via the turntable 9 when the specifications of the processing table are different. In this way, the T-block 11 moves the positioning frame 2 under the cooperation of the adjustment screw 7, the connecting ring 8, and the threaded sleeve 10, thereby achieving the purpose of adjusting the position of the positioning frame 2. Furthermore, through the cooperation of multiple structures set in the positioning frame 2, the base 1 is fixedly installed on the processing table.

[0033] exist Figures 1-4 The clamping assembly includes two supports 12, both of which are fixedly connected to the base 1. One end of one support 12 is fixedly connected to three connecting posts 13, and the other support 12 is provided with an electro-hydraulic push cylinder 14. The output end of the electro-hydraulic push cylinder 14 and the other end of the three connecting posts 13 are both fixedly connected to a limiting seat 15 to facilitate clamping the universal joint component to be processed. The opposite ends of the two limiting seats 15 are provided with rubber pads 16 to prevent the positioning seat 5 from making hard contact with the universal joint component. The base 1 is provided with an installation groove, and the installation groove is provided with an anti-slip pad 17 to prevent the universal joint component to be processed from sliding on the base 1.

[0034] In this embodiment, the electro-hydraulic pusher cylinder 14 is a commercially available device known to those skilled in the art. It can be customized or selected according to actual needs. Here, we are only using it without making any structural or functional improvements. We will not go into details here. The electro-hydraulic pusher cylinder 14 is equipped with a matching control switch. The installation position of the control switch is selected according to actual usage needs to facilitate operation and control by the operator. The technology is already very mature and can be implemented.

[0035] The implementation principle of the excavator universal joint seat clamp of this utility model embodiment is as follows: First, after the base 1 is placed on the processing table, the adjusting screw 7 can be rotated by the turntable 9. Under the cooperation of the adjusting screw 7, the connecting ring 8, and the threaded sleeve 10, the T-block 11 moves its positioning frame 2. After the positioning frame 2 is adjusted to the appropriate position, the positioning screw 4 is rotated by the connecting plate 6. Under the cooperation of the positioning screw 4 and the threaded ring 3, the positioning seat 5 is tightly fitted with the bottom of the processing table, thereby playing the role of fixing and limiting the base 1. Then, by activating the electro-hydraulic push cylinder 14, the output end of the electro-hydraulic push cylinder 14 drives the positioning seat 5 to move, thereby making the universal joint component tightly fitted with the two positioning seats 5, thus playing the role of fixing and clamping the universal joint component.

[0036] 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 universal joint cup clamp for excavators, characterized in that, Include: Base (1); Four positioning frame (2), four said positioning frame (2) are set in the bottom of base (1) by adjusting assembly, the mounting hole is set in the positioning clamp, and the threaded ring (3) is set in the mounting hole; Four positioning screw (4), the positioning screw (4) is screwed with positioning frame (2) through threaded ring (3), the positioning screw (4) is fixedly connected with positioning seat (5), and the other end of the positioning screw (4) is fixedly connected with connecting disc (6); Clamping assembly, the clamping assembly is set on the base (1), which is used for fixing and limiting the universal joint parts required for machining.

2. The excavator cardan joint socket clamp of claim 1, wherein: The adjusting assembly includes adjusting screw (7), the adjusting screw (7) is rotatably arranged in the base (1) through the adjusting groove, one end of the adjusting screw (7) extends to the outside of the base (1) through the connecting ring (8) and is fixedly connected with the turntable (9), and the outside of the adjusting screw (7) is screwed with T block (11) through threaded sleeve (10), one end of the T block (11) is fixedly connected with the positioning frame (2).

3. The excavator cardan joint socket clamp of claim 1, wherein: The clamping assembly includes two supports (12), two said supports (12) are fixedly connected on the base (1), one end of one support (12) is fixedly connected with three connecting columns (13), the other support (12) is provided with electro-hydraulic push cylinder (14), the output end of the electro-hydraulic push cylinder (14) and the other end of the three connecting columns (13) are fixedly connected with limiting seat (15).

4. The excavator cardan joint socket clamp of claim 3, wherein: Two said limiting seat (15) opposite ends are provided with rubber pad (16).

5. The excavator cardan joint socket clamp of claim 1, wherein: The mounting groove is set on the base (1), and the anti-skid pad (17) is set in the mounting groove.