Hydraulic drive wrench head based on field adjustable seat plate

Abstract

The utility model discloses a hydraulic drive wrench head based on an on-site adjustable seat plate, which comprises a wrench body, the bottom of the wrench body is detachably provided with a wrench seat plate, and one side, far away from the wrench body, of the wrench seat plate extends obliquely. According to the utility model, the wrench seat plates with different lengths can be replaced according to the field environment, so that the effect of resisting the counter-acting force in the fastening process can be achieved in different environments, and the use size of the driving wrench in a narrow space can be quickly and efficiently adjusted.

Description

Technical Field

[0001] This utility model belongs to the field of drive wrench technology, and in particular relates to a hydraulic drive wrench head based on an adjustable seat plate. Background Technology

[0002] Currently, the base plate of the drive wrench is fixed. For different actual application scenarios, the drive wrench with a fixed base plate cannot be used for all drive wrenches. That is, multiple sizes of drive wrenches need to be equipped. This results in the need to carry multiple different sizes of hydraulic drive wrench heads on site, disassemble and install them before tightening, which leads to a lot of wasted manpower and working time. In addition, the price of hydraulic drive wrench heads is relatively high. Configuring multiple models of hydraulic drive wrench heads can easily cause bumps and damage to the drive wrench heads during transportation. Moreover, it is not convenient to change the operation in confined spaces. Utility Model Content

[0003] The purpose of this invention is to overcome the defects of the prior art and provide a hydraulically driven wrench head based on an adjustable seat plate. It can replace the wrench seat plate of different lengths according to the site environment, so as to achieve the effect of resisting the reaction force of the tightening process in different environments and quickly and efficiently adjust the size of the drive wrench for use in confined spaces.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A hydraulically driven wrench head based on an adjustable seat plate includes a wrench body, the bottom of which is detachably fitted with wrench seat plates of different lengths, the wrench seat plates extending obliquely away from the wrench body.

[0006] In one embodiment, the wrench base plate is connected to the wrench body via a base plate pin.

[0007] In one embodiment, a transmission assembly is provided inside the wrench body, and one end of the wrench body has a wrench ring connected to the transmission assembly, with a retainer provided in the track of the wrench ring;

[0008] The sleeve includes a semi-ring component disposed within the wrench ring track and multiple arc-shaped components connected to the semi-ring component. The multiple arc-shaped components and the semi-ring component form a complete ring structure. The arc-shaped components and the semi-ring component, as well as two adjacent arc-shaped components, are connected by a first pin.

[0009] This implementation method, which features a modularly designed retaining sleeve inside the wrench ring, allows for low-torque operation without removing the relevant equipment at both ends of the connecting rod. The semi-ring component is used to secure the nut, while for high-torque operation, multiple arc-shaped components are sequentially connected to the semi-ring component to form a complete ring structure, thus securing the nut for high-torque tightening. The sequential installation of multiple arc-shaped components facilitates engagement with the nut, making it easier for operators to secure the nut in confined spaces and significantly reducing the risk of injury to personnel and equipment.

[0010] In one embodiment, the track of the wrench ring is provided with a plurality of retaining sleeves, and two adjacent retaining sleeves are connected by a second pin.

[0011] This embodiment allows for the adjustment of the thickness of the inner sleeve of the wrench ring according to the required nut thickness, ensuring full contact with the nut, especially during high-torque operations, thus guaranteeing the quality of disassembly and assembly.

[0012] In one embodiment, the transmission assembly includes a drive cylinder disposed within the wrench body and a piston rod disposed within the drive cylinder. The drive cylinder is connected to a hydraulic pump via a hydraulic pipeline. One end of the piston rod is connected to a transmission head, and the transmission head is connected to the wrench ring via a transmission key.

[0013] In one embodiment, the wrench body has a first oil passage and a second oil passage that are connected to the drive cylinder. The first oil passage is connected to the cavity between the end of the drive cylinder and the piston rod, and the second oil passage is connected to the cavity inside the piston rod. Both the first oil passage and the second oil passage are connected to the hydraulic pump through a connector and a hydraulic pipeline. An angle rotation component is also provided between the connector and the first oil passage and the second oil passage.

[0014] In one embodiment, the openings of the first oil passage and the second oil passage of the wrench body are arranged adjacent to each other, one end of the angle rotation component is connected to the openings of the first oil passage and the second oil passage, and the other end is connected to the first connector and the second connector respectively.

[0015] In one embodiment, the angle rotation structure includes a first rotation assembly and a second rotation assembly. One end of the first rotation assembly is connected to a first connector and a second connector, and the other end is hinged to the second rotation assembly. The second rotation assembly is sleeved on an oil passage, and the oil passage is connected to the first oil passage and the second oil passage, respectively.

[0016] In one embodiment, the angle rotation assembly and the wrench base plate are respectively mounted on both sides of the wrench body.

[0017] In one embodiment, the semi-ring also has an angle disk.

[0018] The beneficial effects of this utility model are as follows:

[0019] It can replace the wrench base plate of different lengths according to the on-site environment, so as to achieve the effect of resisting the reaction force of the tightening process in different environments, and quickly and efficiently adjust the size of the drive wrench for use in confined spaces. Attached Figure Description

[0020] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0021] in:

[0022] Figure 1 A schematic diagram of the structure of this utility model is shown;

[0023] Figure 2 The diagram shows the structural schematics of various wrench base plates of this utility model;

[0024] Figure 3 A schematic diagram of the structure of the semi-ring component of this utility model is shown;

[0025] Figure 4 The diagram shows the structure of several arc-shaped components of this utility model;

[0026] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0027] Figure label:

[0028] 1-Wrench body, 2-Wrench ring, 3-Half-ring, 4-Arc-shaped part, 5-First connector, 6-Second connector, 7-First rotating assembly, 8-Second rotating assembly, 9-First pin, 10-Digital dial, 11-Wrench base plate, 12-Hydraulic cylinder, 13-Piston rod, 14-First oil passage, 15-Second oil passage, 16-Wrench pin. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] This utility model provides an open-end combination drive wrench for use in confined spaces, such as... Figure 1 and Figure 2 As shown, it includes a wrench body 1, and a wrench seat plate 11 is detachably installed on the bottom of the wrench body 1. The wrench seat plate 11 extends obliquely away from the side of the wrench body 1.

[0031] like Figure 2 As shown, Figure 2(a), (b) and (c) show various wrench base plates 11 of different lengths, so that different length wrench base plates 11 can be replaced on the wrench body 1 according to the on-site environment, so that the effect of resisting the reaction force of the tightening process can be achieved in different environments, and the size of the drive wrench can be quickly and efficiently adjusted in confined spaces.

[0032] Specifically, the wrench base plate 11 is connected to the wrench body 1 via base plate pins 16, and the base plate pins 16 of each wrench base plate 11 are located in the same position.

[0033] Furthermore, such as Figure 3 and Figure 4 As shown, a transmission component is also provided inside the wrench body 1. One end of the wrench body 1 has a wrench ring 2 that is connected to the transmission component. A retainer is provided in the track of the wrench ring 2.

[0034] The sleeve includes a semi-ring 3 set in the track of the wrench ring 2 and multiple arc-shaped parts 4 connected to the semi-ring 3. The multiple arc-shaped parts 4 and the semi-ring 3 form a complete ring structure. The arc-shaped parts 4 and the semi-ring 3, as well as two adjacent arc-shaped parts 4, are connected by a first pin 9.

[0035] Specifically, both the semi-ring part 3 and the arc-shaped part 4 are provided with corresponding through holes;

[0036] It should be noted that, as Figure 1 As shown, the semi-ring 3 is set in the track of the wrench ring 2. The two ends of the semi-ring 3 can be connected to the arc-shaped part 4 through the first pin 9. That is, there is no need to remove the relevant equipment at both ends of the connecting rod. In the low torque operation environment, the semi-ring 3 can be used to hold the nut. In the high torque operation environment, in order to avoid slippage, the arc-shaped parts 4 are connected to the two ends of the semi-ring 3 in sequence until a complete ring structure is formed to completely hold the nut. In the process of completely holding the nut, multiple arc-shaped parts are sequentially wrapped around the circumference of the nut and fit against it, which makes it convenient for operators to install in a narrow space, greatly reducing the safety risks of personnel and equipment injury, while saving manpower and time, and avoiding the risk of deviation in stroke accuracy caused by repeated disassembly and assembly of the connecting rod.

[0037] In one embodiment, the track of the wrench ring 2 is provided with multiple sleeves, and two adjacent sleeves are connected by a second pin. This allows the thickness of the sleeves in the wrench ring 2 to be adjusted according to the required thickness of the nut to ensure full contact with the nut, especially during high torque operations, thus avoiding slippage and damage to the nut and ensuring the quality of disassembly and assembly.

[0038] In one embodiment, such as Figure 1As shown, the transmission assembly includes a drive cylinder disposed in the wrench body 1 and a piston rod 13 disposed in the drive cylinder. The drive cylinder is connected to a hydraulic pump through a hydraulic pipeline. One end of the piston rod 13 is connected to a transmission head, and the transmission head is connected to the wrench ring 2 through a transmission key.

[0039] Specifically, the wrench body 1 has a first oil passage 14 and a second oil passage 15 that are connected to the drive cylinder. The first oil passage 14 is connected to the cavity between the end of the drive cylinder and the piston rod 13. The second oil passage 15 is connected to the cavity inside the piston rod 13. The first oil passage 14 and the second oil passage 15 are both connected to the hydraulic pump through a connector and a hydraulic pipeline. An angle rotation component is also provided between the connector and the first oil passage 14 and the second oil passage 15.

[0040] It should be noted that when the hydraulic pump drives the hydraulic oil into the drive cylinder and enters the cavity between the cylinder end and the piston rod 13, the piston rod 13 moves towards the transmission head. When the hydraulic oil enters the cavity inside the piston rod 13, the piston rod 13 moves away from the transmission head, thereby tightening or loosening the nut. The angle rotation component is used to adjust the angle of the connector, which facilitates the adjustment of the hydraulic pipeline connected to the connector in a confined space and improves the applicability of the wrench.

[0041] Specifically, such as Figure 1 As shown, the openings of the first oil passage 14 and the second oil passage 15 of the wrench body 1 are arranged adjacent to each other. One end of the angle rotation assembly is connected to the openings of the first oil passage 14 and the second oil passage 15, and the other end is connected to the first connector 5 and the second connector 6 respectively. The angle rotation structure includes a first rotation assembly 7 and a second rotation assembly 8. One end of the first rotation assembly 7 is connected to the first connector 5 and the second connector 6, and the other end is hinged to the second rotation assembly 8. The second rotation assembly 8 is sleeved on the oil passage opening, and the oil passage opening is connected to the first oil passage 14 and the second oil passage 15 respectively.

[0042] It should be noted that the first rotating assembly 7 has two independent oil passages, which are connected to the first oil passage 14 and the second oil passage 15 respectively. The first rotating assembly 7 is hinged to the second rotating assembly 8. The hinge can be used as the oil passage channel between the first rotating assembly 7 and the second rotating assembly 8. That is, the hydraulic oil can enter and exit without affecting the rotation of the first rotating assembly 7 around the second rotating assembly 8. At the same time, the second rotating assembly 8 is fitted on the oil passage port. The second rotating assembly 8 can rotate 360° around the oil passage port in the horizontal direction. The two oil passages inside it are kept connected to the oil passage port. The oil passage port can be a flange structure. The middle cylinder is connected to the first oil passage 14. The end cap structure on the cylinder has multiple through holes connected to the second oil passage 15. One oil passage of the second rotating assembly 8 is connected to the cylinder and rotates along the cylinder. The other oil passage is connected to the multiple through holes on the end cap structure.

[0043] In one embodiment, such as Figure 1 As shown, the angle rotation assembly is installed on one side of the wrench body 1, and the angle rotation structure and the wrench base plate 11 are respectively set on both sides of the wrench body 1. The angle rotation structure is used to adjust the angle of the hydraulic line, making it convenient to use the hydraulic wrench in a narrow space. At the same time, the wrench base plate 11 supports the wrench body 1 on the other side. That is, the inclined wrench base is used to abut against the parts near the nut to be disassembled to resist the reaction force during the wrench driving process.

[0044] In one embodiment, the semi-ring 2 also has an angle plate 10, which facilitates the operator to observe the rotation state of the nut when disassembling and assembling the nut.

[0045] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A hydraulically driven wrench head based on a field-adjustable seat plate, characterized in that, Includes a wrench body, and a wrench base plate is detachably mounted on the bottom of the wrench body, the wrench base plate extending obliquely away from the side of the wrench body; The wrench body is provided with a transmission component, and one end of the wrench body has a wrench ring connected to the transmission component. A retaining sleeve is provided in the track of the wrench ring. The sleeve includes a semi-ring component disposed within the wrench ring track and multiple arc-shaped components connected to the semi-ring component. The multiple arc-shaped components and the semi-ring component form a complete ring structure. The arc-shaped components and the semi-ring component, as well as two adjacent arc-shaped components, are connected by a first pin. The wrench ring has multiple retaining sleeves inside its track, and two adjacent retaining sleeves are connected by a second pin. The transmission assembly includes a drive cylinder disposed in the wrench body and a piston rod disposed in the drive cylinder. The drive cylinder is connected to a hydraulic pump through a hydraulic pipeline. One end of the piston rod is connected to a transmission head, and the transmission head is connected to the wrench ring through a transmission key. The wrench body has a first oil passage and a second oil passage that are connected to the drive cylinder. The first oil passage is connected to the cavity between the end of the drive cylinder and the piston rod, and the second oil passage is connected to the cavity inside the piston rod. Both the first oil passage and the second oil passage are connected to the hydraulic pump through a connector and a hydraulic pipeline. An angle rotation component is also provided between the connector and the first oil passage and the second oil passage.

2. The hydraulically driven wrench head based on an adjustable seat plate according to claim 1, characterized in that, The wrench base plate is connected to the wrench body via a base plate pin.

3. A hydraulically driven wrench head based on a field-adjustable seat plate according to claim 1, characterized in that, The openings of the first oil passage and the second oil passage of the wrench body are arranged adjacent to each other. One end of the angle rotation component is connected to the openings of the first oil passage and the second oil passage, and the other end is connected to the first connector and the second connector, respectively.

4. A hydraulically driven wrench head based on an adjustable seat plate according to claim 3, characterized in that, The angle rotation assembly includes a first rotation assembly and a second rotation assembly. One end of the first rotation assembly is connected to a first connector and a second connector, and the other end is hinged to the second rotation assembly. The second rotation assembly is sleeved on an oil passage, and the oil passage is connected to the first oil passage and the second oil passage respectively.

5. A hydraulically driven wrench head based on a field-adjustable seat plate according to claim 1, characterized in that, The angle rotation component and the wrench base plate are respectively installed on both sides of the wrench body.

6. A hydraulically driven wrench head based on a field-adjustable seat plate according to claim 1, characterized in that, The semi-ring also has an angle disc.

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