Anti-impact electro-hydraulic hammer hammer rod

By installing lubrication, cooling, and cleaning components on the electro-hydraulic hammer rod, the friction problem between the hammer rod and the guide sleeve is solved, maintaining the stability and striking accuracy of the hammer rod, preventing high-temperature failure of the lubricant, and improving the working efficiency of the equipment.

CN224487555UActive Publication Date: 2026-07-14YUANXING SPECIAL STEEL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUANXING SPECIAL STEEL CO LTD
Filing Date
2025-07-29
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

During use, the friction between the guide sleeve and the hammer rod increases the clearance, causing the hammer rod to wobble, reducing the striking accuracy, and may even cause swaying and equipment vibration.

Method used

A lubrication component is used to lubricate the hammer rod and guide sleeve, a cooling component is used to cool the lubricant, and a cleaning component is used to backwash the filter screen to prevent lubricant blockage.

Benefits of technology

This effectively avoids increased friction between the hammer rod and the guide sleeve, maintains striking accuracy, prevents lubricant failure at high temperatures, ensures lubricant flowability, and improves the stability and working efficiency of the hammer rod.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224487555U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of anti-impact electro-hydraulic hammer hammer rod, belong to electro-hydraulic hammer technical field, including processing mechanism, including main frame, motor fixedly installed in main frame top, hammer rod fixedly installed in motor output end, hammer head fixedly installed in hammer rod bottom and used to impact workpiece;Lubricating mechanism, including the lubricating component for the surface of hammer rod is lubricated, cooling component for the cooling of the lubricating liquid used to lubricating component, and cleaning component for the backwashing of auxiliary lubricating component.The utility model is used for the lubrication between hammer rod and guide sleeve by lubricating component, avoid the cooperation gap between hammer rod and guide sleeve because of friction rapidly increase, and the hammer rod is shaken when moving, and the precision of impact is reduced;Cooling component is used for cooling lubricating fluid, to prevent continuous work from causing high-temperature failure of lubricating fluid, reduce lubricating effect;Cleaning component is used for backwashing filter screen, to avoid its blockage and affect the flow of lubricating fluid.
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Description

Technical Field

[0001] This utility model belongs to the field of electro-hydraulic hammer technology, specifically relating to an impact-resistant electro-hydraulic hammer rod. Background Technology

[0002] An electro-hydraulic hammer is a forging device that combines hydraulic drive with electrical control. The hydraulic system generates high-pressure oil to drive the hammer head at high speed, while the electrical control system precisely adjusts the striking energy and frequency. Its core components include a hydraulic station, hammer body, and control system. It combines the impact force of a traditional forging hammer with the controllability of hydraulic equipment, featuring low energy consumption, low noise, and high precision. It is widely used in metal forging, stamping, and forming industries, efficiently completing processes such as free forging and die forging, and is an important piece of equipment in modern intelligent forging production lines.

[0003] During use, the hammer rod of an electro-hydraulic hammer is subjected to strong impact force. In order to reduce lateral impact and off-center load and prevent the hammer rod from bending and deforming, a guide sleeve is fitted on the surface of the hammer rod for guidance. However, the fit gap between the inner wall of the guide sleeve and the hammer rod gradually increases due to friction, which can easily cause the hammer rod to shake during movement, reduce the striking accuracy, and in severe cases may cause the hammer rod to wobble, resulting in forging dimensional deviation or increased equipment vibration. Utility Model Content

[0004] The purpose of this invention is to provide an impact-resistant electro-hydraulic hammer rod, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An impact-resistant electro-hydraulic hammer rod includes,

[0007] The processing mechanism includes a main frame, a motor fixedly installed on the top of the main frame, a hammer rod fixedly installed on the output end of the motor, a hammer head fixedly installed on the bottom of the hammer rod for impacting the workpiece, a guide sleeve sleeved on the surface of the hammer rod for positioning the hammer rod, two connecting rods fixedly installed on the surface of the guide sleeve, and shock-absorbing pads fixedly installed between the hammer rod and the hammer head for impact protection.

[0008] The other end of the connecting rod is slidably mounted on the surface of the main frame;

[0009] The lubrication mechanism includes a lubrication component for lubricating the surface of the hammer rod, a cooling component for cooling the lubricant used in the lubrication component, and a cleaning component for backwashing the lubrication component.

[0010] As a preferred embodiment of this utility model, the lubrication component includes an oil reservoir fixedly installed on the top of the guide sleeve, a plurality of vertical grooves and annular grooves formed on the inner wall of the guide sleeve, and a sealing ring fixedly installed on the bottom of the guide sleeve for sealing its bottom.

[0011] As a preferred embodiment of this utility model, a filter screen is fixedly installed inside the oil storage box and at the top of the guide sleeve, and a sealing scraper ring is provided on the inner side of the oil storage box. The filter screen is used to filter the lubricating fluid.

[0012] As a preferred embodiment of this utility model, a plurality of vertical grooves are equidistantly distributed along the circumferential direction of the inner wall of the guide sleeve, and a plurality of annular grooves are equidistantly distributed along the axial direction of the vertical grooves, and the vertical grooves and annular grooves are interconnected and interleaved.

[0013] As a preferred embodiment of the present invention, the cooling component includes several cooling channels formed inside the guide sleeve for dissipating heat from the lubricant, several diversion plates fixedly installed on the surface of the guide sleeve, and a heat-conducting component for dissipating heat from the lubricant.

[0014] As a preferred embodiment of the present invention, the heat-conducting component includes a heat-conducting rod embedded between the cooling channel and the annular groove, and a heat sink fixedly installed at the end of the heat-conducting rod and located inside the cooling channel.

[0015] As a preferred embodiment of this utility model, the cleaning component includes a water inlet pipe fixedly installed on the surface of the guide sleeve, a sealing plug snapped into the inside of the water inlet pipe, a water outlet symmetrically arranged on the top of the oil storage box, and a plug for sealing the water outlet.

[0016] In a preferred embodiment of this utility model, the end of the water inlet pipe is connected to the vertical groove, and both the sealing plug and the end cap are made of rubber.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the lubrication component is used to lubricate the hammer rod and the guide sleeve, so as to avoid the rapid increase of the fit gap between the hammer rod and the guide sleeve due to friction, which would cause the hammer rod to shake during movement and reduce the striking accuracy; the cooling component is used to cool the lubricating fluid, so as to prevent the lubricating fluid from failing at high temperature due to continuous operation and reducing the lubrication effect; the cleaning component is used to backwash the filter screen, so as to prevent it from clogging and affecting the flow of the lubricating fluid. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the lubrication mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the lubrication component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the cooling component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the heat-conducting component structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the cleaning component structure of this utility model.

[0025] In the diagram: 100, machining mechanism; 110, main frame; 120, electric motor; 130, hammer rod; 140, hammer head; 150, guide sleeve; 160, connecting rod; 170, shock-absorbing pad; 200, lubrication mechanism; 210, lubrication component; 211, oil reservoir; 212, vertical groove; 213, annular groove; 214, sealing ring; 215, filter screen; 216, sealing scraper ring; 220, cooling component; 221, cooling channel; 222, diverting plate; 223, heat-conducting component; 2231, heat-conducting rod; 2232, heat sink; 230, cleaning component; 231, water inlet pipe; 232, sealing plug; 233, water outlet; 234, plug. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example

[0030] Reference Figure 1-6 This is an embodiment of the present invention, which provides an impact-resistant electro-hydraulic hammer rod, comprising:

[0031] The processing mechanism 100 includes a main frame 110, a motor 120 fixedly installed on the top of the main frame 110, a hammer rod 130 fixedly installed on the output end of the motor 120, a hammer head 140 fixedly installed on the bottom of the hammer rod 130 for impacting the workpiece, a guide sleeve 150 sleeved on the surface of the hammer rod 130 for positioning the hammer rod 130, two connecting rods 160 fixedly installed on the surface of the guide sleeve 150, and a shock-absorbing pad 170 fixedly installed between the hammer rod 130 and the hammer head 140 for shock protection.

[0032] The other end of the connecting rod 160 is slidably mounted on the surface of the main frame 110;

[0033] The lubrication mechanism 200 includes a lubrication component 210 for lubricating the surface of the hammer rod 130, a cooling component 220 for cooling the lubricant used in the lubrication component 210, and a cleaning component 230 for backwashing the lubrication component 210.

[0034] The lubrication component 210 is used to lubricate the hammer rod 130 and the guide sleeve 150, so as to prevent the fitting gap between the hammer rod 130 and the guide sleeve 150 from increasing rapidly due to friction, which would cause the hammer rod 130 to shake during movement and reduce the striking accuracy. The cooling component 220 is used to cool the lubricant, so as to prevent the lubricant from failing due to high temperature during continuous operation and reducing the lubrication effect. The cleaning component 230 is used to backwash the filter screen 215 to prevent it from clogging and affecting the flow of lubricant.

[0035] Specifically, the lubrication component 210 includes an oil reservoir 211 fixedly installed on the top of the guide sleeve 150, a plurality of vertical grooves 212 and annular grooves 213 formed on the inner wall of the guide sleeve 150, and a sealing ring 214 fixedly installed on the bottom of the guide sleeve 150 for sealing its bottom.

[0036] The lubricant can be stored in the oil storage box 211. When the lubricant flows into the vertical groove 212 and the annular groove 213, it can be evenly applied to the surface of the hammer rod 130 during the up and down movement of the hammer rod 130, thus lubricating the hammer rod 130 and the guide sleeve 150.

[0037] Furthermore, a filter screen 215 is fixedly installed inside the oil reservoir 211 and on top of the guide sleeve 150. A sealing scraper ring 216 is provided on the inner side of the oil reservoir 211. The filter screen 215 is used to filter the lubricating fluid.

[0038] When the hammer rod 130 moves downward, the vertical groove 212 and the annular groove 213 apply lubricant to the surface of the hammer rod 130. At the same time, the sealing scraper ring 216 scrapes off the lubricant from the surface of the hammer rod 130 and flows into the oil storage box 211. The lubricant then flows into the interior of the vertical groove 212 and the annular groove 213 through the filter screen 215, so that the filter screen 215 can filter the lubricant and prevent the lubricant from containing impurities during long-term use, which would affect its lubrication effect.

[0039] Preferably, a number of vertical grooves 212 are equidistantly distributed along the circumferential direction of the inner wall of the guide sleeve 150, and a number of annular grooves 213 are equidistantly distributed along the axial direction of the vertical grooves 212, with the vertical grooves 212 and the annular grooves 213 being interconnected in an alternating manner.

[0040] Furthermore, the cooling component 220 includes several cooling channels 221 formed inside the guide sleeve 150 for dissipating heat from the lubricant, several diverting plates 222 fixedly installed on the surface of the guide sleeve 150, and a heat-conducting component 223 for dissipating heat from the lubricant.

[0041] The bottom port of the cooling channel 221 is the air inlet, and the top port is the air outlet. The air guide plate 222 is located at the top of the air inlet and is arranged in a downward arc shape to guide the air into the interior of the cooling channel 221. During the process of the hammer rod 130 driving the guide sleeve 150 to move downward, the air enters the interior of the cooling channel 221 under the guidance of the air guide plate 222. The air moves upward along the interior of the cooling channel 221, carrying away the heat dissipated by the heat sink 2232 and cooling the heat sink 2232 to improve the cooling effect on the lubricant and prevent the lubricant from losing its lubricating effect due to excessive temperature.

[0042] Furthermore, the heat-conducting component 223 includes a heat-conducting rod 2231 embedded between the cooling channel 221 and the annular groove 213, and a heat sink 2232 fixedly installed at the end of the heat-conducting rod 2231 and located inside the cooling channel 221.

[0043] The curvature of the surface of the heat sink 2232 is the same as the curvature of the inside of the oil reservoir 211, so as to avoid the heat sink 2232 increasing the air resistance through the cooling channel 221. Through the cooperation between the heat conduction rod 2231 and the heat sink 2232, the heat of the lubricant is conducted out and dissipated into the air inside the cooling channel 221, thereby reducing the temperature of the lubricant and preventing the lubricant temperature from being too high and affecting the lubrication effect.

[0044] Specifically, the cleaning component 230 includes a water inlet pipe 231 fixedly installed on the surface of the guide sleeve 150, a sealing plug 232 snapped into the inside of the water inlet pipe 231, a water outlet 233 opened on the top of the oil storage box 211 and symmetrically arranged, and a plug 234 for blocking and sealing the water outlet 233.

[0045] When backwashing the filter screen 215 is required, first pull out the sealing plug 232 from the inside of the water inlet pipe 231, and remove the plug 234 from the inside of the water outlet 233, so that the lubricating fluid can be discharged through the water inlet pipe 231. Connect the water pipe to the water inlet pipe 231. Under the impact of the high-speed water flow, the water flows upward through the vertical groove 212 and the ring groove 213 to wash the filter screen 215. The washed water gathers inside the oil storage box 211 and is discharged through the two water outlets 233, spraying out the washed impurities. This backwashing and cleaning of the filter screen 215 ensures the filtering effect of the filter screen 215 on the lubricating fluid.

[0046] Furthermore, the end of the water inlet pipe 231 is connected to the vertical groove 212, and both the sealing plug 232 and the plug 234 are made of rubber.

[0047] During use, the oil reservoir 211 stores the lubricant. When the lubricant flows into the vertical groove 212 and the annular groove 213, it can evenly coat the surface of the hammer rod 130 during the up-and-down movement of the hammer rod 130, thus lubricating the area between the hammer rod 130 and the guide sleeve 150. When the hammer rod 130 moves down, the vertical groove 212 and the annular groove 213 coat the surface of the hammer rod 130 with lubricant, while the sealing scraper ring 216 scrapes off the lubricant from the surface of the hammer rod 130 and allows it to flow into the oil reservoir 211. The lubricant then flows into the vertical groove 212 and the annular groove 213 through the filter screen 215, allowing the filter screen 215 to filter the lubricant.

[0048] During the process of the hammer rod 130 driving the guide sleeve 150 to move downward, the air enters the interior of the cooling channel 221 under the guidance of the guide plate 222. The air moves upward along the interior of the cooling channel 221, carrying away the heat dissipated by the heat sink 2232 and cooling the heat sink 2232 to improve the cooling effect on the lubricant.

[0049] When backwashing the filter screen 215 is required, first pull out the sealing plug 232 from the inside of the water inlet pipe 231, remove the plug 234 from the inside of the water outlet 233, so that the lubricant can be discharged through the water inlet pipe 231. Connect the water pipe to the water inlet pipe 231. Under the impact of the high-speed water flow, the water flows upward through the vertical groove 212 and the ring groove 213 to wash the filter screen 215. The washed water gathers inside the oil collection box 211 and is then discharged through the two water outlets 233 to spray out the impurities washed out.

[0050] In summary, the lubrication component 210 is used to lubricate the hammer rod 130 and the guide sleeve 150, preventing the clearance between the hammer rod 130 and the guide sleeve 150 from increasing rapidly due to friction, which would cause the hammer rod 130 to shake during movement and reduce striking accuracy; the cooling component 220 is used to cool the lubricant, preventing the lubricant from failing due to high temperature during continuous operation and reducing the lubrication effect; and the cleaning component 230 is used to backwash the filter screen 215 to prevent it from becoming clogged and affecting the flow of the lubricant.

[0051] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0052] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0053] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An impact-resistant electro-hydraulic hammer rod, characterized in that: include, The processing mechanism (100) includes a main frame (110), a motor (120) fixedly installed on the top of the main frame (110), a hammer rod (130) fixedly installed on the output end of the motor (120), a hammer head (140) fixedly installed on the bottom of the hammer rod (130) and used to impact the workpiece, a guide sleeve (150) sleeved on the surface of the hammer rod (130) and used to position the hammer rod (130), two connecting rods (160) fixedly installed on the surface of the guide sleeve (150), and a shock-absorbing pad (170) fixedly installed between the hammer rod (130) and the hammer head (140) for shock protection; The other end of the connecting rod (160) is slidably mounted on the surface of the main frame (110); The lubrication mechanism (200) includes a lubrication component (210) for lubricating the surface of the hammer rod (130), a cooling component (220) for cooling the lubricant used in the lubrication component (210), and a cleaning component (230) for backwashing the lubrication component (210).

2. The impact-resistant electro-hydraulic hammer rod according to claim 1, characterized in that: The lubrication component (210) includes an oil reservoir (211) fixedly installed on the top of the guide sleeve (150), a plurality of vertical grooves (212) and annular grooves (213) opened on the inner wall of the guide sleeve (150), and a sealing ring (214) fixedly installed on the bottom of the guide sleeve (150) for sealing its bottom.

3. The impact-resistant electro-hydraulic hammer rod according to claim 2, characterized in that: A filter screen (215) is fixedly installed inside the oil reservoir (211) and on top of the guide sleeve (150). A sealing scraper ring (216) is provided on the inner side of the oil reservoir (211). The filter screen (215) is used to filter the lubricating fluid.

4. The impact-resistant electro-hydraulic hammer rod according to claim 3, characterized in that: Several vertical grooves (212) are equidistantly distributed along the circumferential direction of the inner wall of the guide sleeve (150), and several annular grooves (213) are equidistantly distributed along the axial direction of the vertical grooves (212). The vertical grooves (212) and the annular grooves (213) are interleaved and connected.

5. The impact-resistant electro-hydraulic hammer rod according to claim 4, characterized in that: The cooling component (220) includes several cooling channels (221) opened inside the guide sleeve (150) for dissipating heat from the lubricant, several diversion plates (222) fixedly installed on the surface of the guide sleeve (150), and a heat-conducting component (223) for dissipating heat from the lubricant.

6. The impact-resistant electro-hydraulic hammer rod according to claim 5, characterized in that: The heat-conducting component (223) includes a heat-conducting rod (2231) embedded between the cooling channel (221) and the annular groove (213), and a heat sink (2232) fixedly installed at the end of the heat-conducting rod (2231) and located inside the cooling channel (221).

7. The impact-resistant electro-hydraulic hammer rod according to claim 6, characterized in that: The cleaning component (230) includes an inlet pipe (231) fixedly installed on the surface of the guide sleeve (150), a sealing plug (232) snapped into the inside of the inlet pipe (231), an outlet (233) opened on the top of the oil storage box (211) and symmetrically arranged, and a plug (234) for blocking and sealing the outlet (233).

8. The impact-resistant electro-hydraulic hammer rod according to claim 7, characterized in that: The end of the water inlet pipe (231) is connected to the vertical groove (212), and the sealing plug (232) and the plug (234) are both made of rubber.