Guide rod pulling device

By converting the axial motion of the guide rod into rotational motion through a transmission screw device, the problem of time-consuming and labor-intensive guide rod removal is solved, enabling efficient removal by a single person.

CN224255251UActive Publication Date: 2026-05-19SHANXI FENXI HEAVY IND CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI FENXI HEAVY IND CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In existing technologies, removing the guide rod is time-consuming and labor-intensive, requires multiple people to work together, and is inconvenient and inefficient.

Method used

A transmission screw device is used to convert the axial movement of the guide rod into the rotational movement of the transmission screw, and the guide rod can be automatically or manually withdrawn through the control component.

Benefits of technology

It improves the efficiency and stability of guide rod removal, reduces the labor intensity of operators, and allows a single person to complete the guide rod removal process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224255251U_ABST
    Figure CN224255251U_ABST
Patent Text Reader

Abstract

The embodiment of the utility model discloses a guide rod pulling-out device which comprises a base, a pull rod and a pull rod, the supporting seat is arranged on the bearing surface of the base, and the top of the supporting seat is used for fixing a to-be-treated workpiece; the bearing seat is arranged on the bearing surface of the base, and the bearing seat and the supporting seat are arranged in a face-to-face manner; the two ends of the transmission lead screw are rotationally connected with the supporting seat and the bearing seat respectively; the transmission assembly is used for connecting the transmission lead screw and a guide rod of a workpiece to be treated; the guide rails are arranged on the two sides of the transmission lead screw and movably connected with the transmission assembly. The control assembly is connected with the end, penetrating through the bearing seat, of the transmission lead screw. The convenience degree of pulling away the guide rod is improved, and the working efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to a guide rod removal device. Background Technology

[0002] The pressure compensator contains a bladder. The guide rod of the compensator needs to be pulled out using manual force until the locating pin hole on the guide rod is exposed and secured with the locating pin. This allows the bladder inside to fold over, creating space for oil storage. During this process, because the bladder is rigid and thick, the guide rod is applied force at the point where it is fixed to the bottom of the bladder. Pulling causes the bottom of the bladder to fold over. This folding is achieved by manually pulling the guide rod away. In practice, this requires the cooperation of three people, making it time-consuming and labor-intensive.

[0003] There is currently no effective solution to the above problems in existing technologies. Utility Model Content

[0004] To solve the above problems, this utility model provides a guide rod removal device. By using a transmission screw, the guide rod can be removed by simply operating the control component, which facilitates the removal of the guide rod and solves the problem of time-consuming and laborious guide rod removal.

[0005] To achieve the above objectives, this utility model provides a guide rod extraction device, comprising: a base, the base including a bearing surface; a support seat, the support seat disposed on the bearing surface of the base, the top of which is used to fix the workpiece to be processed; a bearing seat, the bearing seat disposed on the bearing surface of the base and facing the support seat; a transmission screw, the two ends of the transmission screw being rotatably connected to the support seat and the bearing seat respectively; a transmission assembly, the transmission assembly being used to connect the transmission screw and the guide rod of the workpiece to be processed; a guide rail, the guide rail being disposed on both sides of the transmission screw and movably connected to the transmission assembly; and a control assembly, the control assembly being connected to one end of the transmission screw passing through the bearing seat.

[0006] Optionally, the support base includes two support plates arranged face-to-face and parallel to each other; each of the two support plates has a connecting hole, and a bearing is provided in the connecting hole, the bearing being used to connect to one end of the transmission screw.

[0007] Alternatively, the bearing housing may have a connecting hole in which a bearing is disposed, the bearing being used to connect to one end of a transmission lead screw.

[0008] Optionally, the transmission assembly includes: a connecting plate, a transmission block, a transmission support block, and a transmission shaft; one end of the connecting plate is used to connect to a guide rod, and the other end is connected to the transmission block; the transmission block is connected to a transmission screw, and transmission support blocks are respectively provided on both sides of the transmission block, with each transmission support block being movably connected to the guide rail on the corresponding side via a transmission shaft.

[0009] Optionally, the guide rail has a guide rail groove on the side for connecting with the drive shaft, and the direction of the guide rail groove is consistent with the direction of the drive screw to allow the drive shaft to slide.

[0010] Alternatively, the top of the support base is provided with a hoop for fixing the workpiece to the support base.

[0011] Alternatively, the inner surface of the hoop may be provided with a rubber pad.

[0012] Optionally, the control component includes a rotary wheel and a handle; the rotary wheel is connected to the end of the transmission screw and is also connected to the handle.

[0013] Alternatively, the lead screw may be made of carbon steel and have a wear-resistant coating on its surface.

[0014] Alternatively, the base may have a shock-absorbing pad at its bottom, the shock-absorbing pad being made of an elastic material.

[0015] The above technical solution has the following beneficial effects: by setting a transmission screw, the axial movement of the guide rod is converted into the rotational movement of the transmission screw, which facilitates the removal of the guide rod and improves working efficiency; by setting a support seat to fix the main body of the pressure compensator, the stability and ease of removal of the guide rod are improved; by setting a guide rail to cooperate with the movement of the screw, resistance is reduced and efficiency is improved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the guide rod extraction device provided in this embodiment of the utility model;

[0018] Figure 2 This is a structural schematic diagram of the guide rod extraction device provided in another embodiment of this utility model.

[0019] Reference numerals: 1-Base; 2-Support seat; 3-Bearing seat; 4-Drive screw; 5-Transmission assembly; 501-Connecting plate; 502-Transmission support block; 503-Transmission block; 504-Drive shaft; 6-Guide rail; 601-Guide rail groove; 7-Control assembly; 701-Roller; 702-Handle; 8-Hoop ring; 9-Workpiece to be processed; 10-Guide rod. Detailed Implementation

[0020] 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.

[0021] To address the time-consuming and labor-intensive problem of guide rod removal in existing technologies, this utility model provides a guide rod removal device. Please refer to [the relevant documentation]. Figures 1-2 , Figure 1 This is a schematic diagram of the guide rod extraction device provided in this embodiment of the utility model; Figure 2 This is a structural schematic diagram of the guide rod extraction device provided in another embodiment of this utility model.

[0022] The guide rod extraction device provided in this embodiment includes: a base 1, which includes a bearing surface; a support 2, which is disposed on the bearing surface of the base 1 and has its top for fixing the workpiece 9 to be processed; a bearing seat 3, which is disposed on the bearing surface of the base 1 and is arranged facing the support 2; a transmission screw 4, whose two ends are rotatably connected to the support 2 and the bearing seat 3 respectively; a transmission assembly 5, which is used to connect the transmission screw 4 and the guide rod of the workpiece 9 to be processed; a guide rail 6, which is disposed on both sides of the transmission screw 4 and is movably connected to the transmission assembly 5; and a control assembly 7, which is connected to one end of the transmission screw 4 that passes through the bearing seat 3.

[0023] The base 1 serves as the supporting foundation for the device, providing a load-bearing surface to ensure the stability of the entire system.

[0024] The support base 2 is located on the bearing surface of the base 1 and is used to fix the workpiece 9 to be processed. In this embodiment, it is a pressure compensator. Its top structure is designed to stabilize the pressure compensator to ensure that the guide rod 10 remains stable during the withdrawal process. The connection between the support base 2 and the base 1 can be achieved by screw connection.

[0025] The bearing housing 3 is located on the bearing surface of the base 1 and is positioned opposite to the support 2. The connection between the bearing housing 3 and the base 1 can be achieved by screw connection.

[0026] The two ends of the transmission screw 4 are rotatably connected to the support base 2 and the bearing housing 3, respectively. Specifically, the transmission screw 4 is connected to the support base 2 via bearings, and also to the bearing housing 3 via bearings.

[0027] The transmission assembly 5 connects the lead screw 4 to the guide rod 10 of the workpiece 9, and is used to convert the rotational motion of the lead screw into the axial movement of the guide rod 10. In addition, the transmission assembly 5 can slide on the guide rail 6 to further reduce motion resistance and improve transmission efficiency.

[0028] The guide rail 6 is located on both sides of the transmission screw 4 and can be interactively connected with the transmission component 5 to constrain the movement trajectory of the transmission component 5 and provide precise guidance, making the guide rod removal process more stable.

[0029] The control component 7 is connected to the end of the transmission screw 4 and controls the retraction process of the guide rod. The operator can manually operate the control component 7 to rotate the screw, or connect the control component 7 to the power component to achieve automated drive.

[0030] As an optional implementation, the support base 2 includes two support plates arranged face to face and parallel to each other; each of the two support plates has a connecting hole, and a bearing is provided in the connecting hole, which is used to connect to one end of the transmission screw 4.

[0031] The support base 2 includes two opposing support plates, which are parallel to each other and fixed to the base 1 to form a stable support frame. The two support plates are arranged face-to-face and parallel to ensure uniform force transmission during the guide rod withdrawal process and avoid movement deviation caused by support imbalance.

[0032] Each support plate has a connecting hole in the middle, into which a bearing is installed. This structure allows the transmission screw 4 to rotate freely within the support base 2, thereby reducing friction and ensuring smooth screw transmission. The transmission screw 4 is connected via a bearing support plate, allowing it to rotate relative to the support base 2. The connecting holes on both support plates are in the same position. Depending on different requirements, the support plate connected to the transmission screw 4 can be selected.

[0033] As an optional implementation, the bearing housing 3 is provided with a connecting hole, and a bearing is provided in the connecting hole for connecting with one end of the transmission screw 4.

[0034] A through-hole is provided in the center of the bearing housing 3, and a bearing is installed in the through-hole. This structure allows the transmission screw 4 to rotate freely within the bearing housing 3, thereby reducing friction and ensuring the smoothness of the screw transmission. The transmission screw 4 is connected to the bearing housing 3 through the bearing, allowing the transmission screw 4 to rotate relative to the bearing housing 3.

[0035] The connecting holes on the bearing housing 3 and the connecting holes on the support 2 are in the same position, and the two ends of the transmission screw 4 are connected to the bearings in the bearing housing 3 and the bearings in the support 2, respectively.

[0036] As an optional implementation, the transmission assembly 5 includes: a connecting plate 501, a transmission block 503, a transmission support block 502, and a transmission shaft 504; one end of the connecting plate 501 is used to connect the guide rod 10, and the other end is connected to the transmission block 503; the transmission block 503 is connected to the transmission screw 4, and transmission support blocks 502 are respectively provided on both sides of the transmission block 503, and each transmission support block 502 is movably connected to the guide rail 6 on the corresponding side through the transmission shaft 504.

[0037] One end of the connecting plate 501 is used to connect the guide rod 10, and the other end is fixedly connected to the transmission block 503, so that the guide rod 10 can move together with the transmission block 503 to realize the extraction process. The transmission block 503 is connected to the transmission screw 4. Specifically, the external thread of the transmission screw 4 is engaged with the internal thread of the transmission block 503. When the screw rotates, the transmission block 503 moves in the circumferential direction under the determination of the screw thread. Its function is to convert the rotational motion of the screw into the linear motion of the guide rod to realize the extraction of the guide rod.

[0038] Transmission support blocks 502 are provided on both sides of the transmission block 503 to support the stable operation of the transmission block 503 and prevent shaking or tilting caused by uneven force. The transmission support blocks 502 provide lateral stability to ensure that the transmission block 503 does not deviate to the left or right when it moves along the guide rail 6.

[0039] Each transmission support block 502 is movably connected to the guide rail 6 via a transmission shaft 504, allowing the transmission block 503 to slide smoothly along the guide rail 6. The transmission shaft 504 can be connected by a rolling bearing or a sliding guide rail 6 to reduce friction and improve transmission efficiency.

[0040] As an optional implementation, the guide rail 6 has a guide rail groove 601 on the side for connecting with the drive shaft 504. The direction of the guide rail groove 601 is consistent with the direction of the drive screw 4, which is used to allow the drive shaft 504 to slide.

[0041] The guide rail 6 is fixedly installed on the base 1 to provide support and constraint for the transmission component 5, ensuring that it moves along a fixed trajectory. Each side of the guide rail 6 is provided with a guide rail groove 601, which accommodates the transmission shaft 504, allowing it to slide along the guide rail groove 601.

[0042] As an optional implementation, the top of the support base 2 is provided with a hoop 8 for fixing the workpiece to the support base 2.

[0043] To improve support stability, the top of the support base 2 is provided with a groove that matches the workpiece 9 to be processed, and a hoop 8 is connected by screws. When the workpiece 9 to be processed is placed on the top of the support base 2, the hoop 8 surrounds the workpiece 9 to enhance the fixing effect of the workpiece.

[0044] As an alternative implementation, the hoop 8 can be designed with an adjustable diameter to accommodate workpieces of different sizes, thereby increasing the range of adaptability.

[0045] As an optional implementation, the inner surface of the hoop 8 is provided with a rubber pad.

[0046] To ensure that the workpiece 9 is not damaged during the fixing process and to improve the stability of the fixing, a rubber pad is provided on the inner surface of the clamping ring 8. This design can effectively buffer the clamping force, reduce damage to the workpiece surface, and at the same time enhance friction and improve the fixing effect.

[0047] As an optional implementation, the control component 7 includes a rotary wheel 701 and a handle 702; the rotary wheel 701 is connected to the end of the transmission screw 4 and is connected to the handle 702.

[0048] The rotating wheel 701 is keyed to the transmission screw 4, ensuring that the transmission screw 4 can be installed as the rotating wheel 701 rotates. It adopts a circular or polygonal structure, which facilitates the installation of the handle 702 and provides reliable torque transmission.

[0049] The handle 702 is connected to the rotary wheel 701 for manual operation, providing rotational torque; it adopts a long lever design, which makes it convenient for the operator to apply force and provides rotational efficiency; it adopts a foldable or detachable structure, which is convenient for storage and transportation.

[0050] As an optional implementation, the lead screw 4 is made of carbon steel and has a wear-resistant coating on its surface.

[0051] The transmission lead screw 4 is made of high-quality carbon steel (such as 45# steel, 40Cr, T8, etc.), which has high strength, high wear resistance and excellent machinability.

[0052] The surface of the transmission lead screw 4 is coated with a wear-resistant coating, and the following processes can be selected:

[0053] Hard chrome plating: provides high wear resistance and low friction performance, improving the wear resistance of the lead screw during long-term use.

[0054] Nickel-Phosphorus Coating: Increases the corrosion resistance of the lead screw and improves surface hardness, making it suitable for humid or corrosive environments.

[0055] Nitriding treatment: Improves surface hardness through ion nitriding or gas nitriding, making the lead screw more wear-resistant and with a longer lifespan.

[0056] PTFE coating: Reduces friction between the lead screw and transmission block 503, improves transmission efficiency, and reduces lubrication requirements.

[0057] As an optional implementation, the bottom of the base 1 is provided with a shock-absorbing pad, which is made of an elastic material.

[0058] The base 1 serves as the supporting foundation for the device, providing stable load-bearing capacity. Its bottom is equipped with shock-absorbing pads to absorb vibrations and impacts generated during operation.

[0059] The above technical solution has the following beneficial effects: by setting a transmission screw, the axial movement of the guide rod is converted into the rotational movement of the transmission screw, which facilitates the removal of the guide rod and improves working efficiency; by setting a support seat to fix the main body of the pressure compensator, the stability and ease of removal of the guide rod are improved; by setting a guide rail to cooperate with the movement of the screw, resistance is reduced and efficiency is improved.

[0060] The above-described specific embodiments of the utility model further illustrate the purpose, technical solution, and beneficial effects of the utility model. It should be understood that the above content is only a specific embodiment of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the scope of protection of the utility model.

Claims

1. A guide rod removal device, characterized in that, include: The base includes a bearing surface; A support base is provided on the bearing surface of the base, and the top is used to fix the workpiece to be processed; A bearing housing, wherein the bearing housing is disposed on the bearing surface of the base and is arranged face-to-face with the support base; A transmission lead screw, the two ends of which are rotatably connected to a support seat and a bearing seat, respectively; A transmission assembly, which is used to connect the lead screw and the guide rod of the workpiece to be processed; The guide rails are located on both sides of the transmission screw and are movably connected to the transmission assembly; A control component is connected to one end of the lead screw that passes through the bearing housing.

2. The guide rod extraction device according to claim 1, characterized in that: The support base includes two support plates, which are arranged face-to-face and parallel to each other. The two support plates are respectively provided with connecting holes, and bearings are provided in the connecting holes. The bearings are used to connect to one end of the transmission screw.

3. The guide rod extraction device according to claim 1, characterized in that: The bearing housing is provided with a connecting hole, and a bearing is provided in the connecting hole. The bearing is used to connect to one end of the transmission screw.

4. The guide rod extraction device according to claim 1, characterized in that, The transmission assembly includes: Connecting plate, transmission block, transmission support block and transmission shaft; One end of the connecting plate is used to connect to the guide rod, and the other end is connected to the transmission block; The transmission block is connected to the transmission screw, and transmission support blocks are provided on both sides of the transmission block. Each transmission support block is movably connected to the guide rail on the corresponding side through a transmission shaft.

5. The guide rod extraction device according to claim 4, characterized in that: The guide rail has a guide rail groove on the side that is connected to the drive shaft. The direction of the guide rail groove is the same as the direction of the drive screw, which is used to allow the drive shaft to slide.

6. The guide rod extraction device according to claim 1, characterized in that: The top of the support base is provided with a hoop for fixing the workpiece to the support base.

7. The guide rod extraction device according to claim 6, characterized in that: The inner surface of the hoop is provided with a rubber pad.

8. The guide rod extraction device according to claim 1, characterized in that: The control components include a rotary wheel and a handle; The rotating wheel is connected to the end of the transmission screw and is also connected to a handle.

9. The guide rod extraction device according to claim 1, characterized in that: The transmission lead screw is made of carbon steel and has a wear-resistant coating on its surface.

10. The guide rod extraction device according to claim 1, characterized in that: The base has a shock-absorbing pad at the bottom, which is made of an elastic material.