Novel hydraulic impact hammer

Abstract

The utility model discloses a novel hydraulic impact hammer which comprises a valve body, a sleeve, a jacket seat, a jacket, a pressure component and an impact component, an oil inlet and an oil outlet are arranged on one side of the valve body, a pressure valve cavity and a control valve cavity which are communicated with each other are arranged in the valve body, the oil inlet and the oil outlet are respectively communicated with the pressure valve cavity, the pressure component is arranged in the pressure valve cavity, and the control valve cavity is communicated with the control valve cavity. A control valve element is rotationally arranged in the control valve cavity, a first oil channel communicated with the pressure valve cavity is formed in the middle of the control valve element, a through hole communicated with the first oil channel is formed in the peripheral side of the control valve element, the upper end of the sleeve is connected with the valve body, an impact valve cavity is formed in the middle of the sleeve, and the through hole of the control valve element is communicated with the impact valve cavity through a second oil channel. The lower end of the sleeve is connected with the jacket seat, the jacket seat is connected with the jacket, and the impact assembly is arranged in the impact valve cavity and the jacket seat. According to the utility model, the design of a sealing structure is optimized, the phenomenon of oil leakage during use is avoided, and meanwhile, the whole volume is designed to be small and exquisite, so that the use is flexible and light.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic impact hammer technology, specifically to a novel hydraulic impact hammer. Background Technology

[0002] Hydraulic impact hammers, widely used in construction and other fields, convert pressure energy into mechanical energy through a hydraulic system to generate high-frequency impacts for impact operations. However, existing hydraulic impact hammers have some problems in practical use. On the one hand, the internal sealing structure is not perfect, leading to easy hydraulic oil leakage, which not only wastes resources and pollutes the environment, but also increases equipment maintenance costs and affects the stability of hydraulic impact hammer operation. On the other hand, the overall structure is large, bulky, and inconvenient to use and carry, increasing labor costs and reducing work efficiency. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing hydraulic impact hammers, such as imperfect sealing structures, large size, cumbersome use, and inconvenient carrying. It provides a new type of hydraulic impact hammer that overcomes these deficiencies. Through technical improvements and optimizations, the sealing structure design is optimized to prevent oil leakage during use. Simultaneously, the overall size of the impact hammer is designed to be compact and lightweight, making it flexible and easy to use. This effectively solves the problems of oil leakage, large size, cumbersome use, and inconvenient carrying inherent in traditional hydraulic impact hammers.

[0004] The technical solution of this utility model is as follows:

[0005] A novel hydraulic impact hammer includes a valve body, a sleeve, a jacket seat, a jacket, a pressure assembly, and an impact assembly. The valve body has an inlet and an outlet on one side. The valve body contains a pressure valve chamber and a control valve chamber that are connected to each other. The inlet and outlet are respectively connected to the pressure valve chamber. The pressure assembly is disposed in the pressure valve chamber. A control valve core is rotatably disposed in the control valve chamber. The control valve core has a first oil passage in its center that communicates with the pressure valve chamber. A through hole communicating with the first oil passage is provided on the periphery of the control valve core. The upper end of the sleeve is connected to the valve body. An impact valve chamber is disposed in the center of the sleeve. The through hole of the control valve core communicates with the impact valve chamber through a second oil passage. The lower end of the sleeve is connected to the jacket seat, which is connected to the jacket. The impact assembly is disposed in the impact valve chamber and the jacket seat.

[0006] Furthermore, the pressure assembly includes a first pressure cap, a first guide sleeve, a gasket, a pressure valve core, a push rod, a lock nut, and a spring. The first guide sleeve is disposed on the upper part of the pressure valve cavity via the gasket and is pressed by the first pressure cap. The pressure valve core is movably disposed in the middle of the pressure valve cavity. The push rod passes through the first guide sleeve and the pressure valve core. The spring is disposed in the lower part of the pressure valve cavity. The pressure valve core is connected to the push rod via the lock nut and abuts against the spring via the lock nut.

[0007] Furthermore, a single-lip skeleton dustproof ring and a first C-type oil seal are provided between the first guide sleeve and the top rod, a first O-ring is provided between the first guide sleeve and the first pressure cap, and a second O-ring is provided between the first guide sleeve and the valve body.

[0008] Furthermore, a wave-shaped spring pad is provided at the bottom of the gasket corresponding to the pressure valve core.

[0009] Furthermore, a second guide sleeve is provided on one side of the control valve cavity, the second guide sleeve is pressed by a second pressure cap, and one end of the control valve core is rotatably connected to the second guide sleeve.

[0010] Furthermore, a third O-ring is provided between the second guide sleeve and the second pressure cap.

[0011] Furthermore, the valve body is connected to the sleeve by screws, and a fourth O-ring is provided between the valve body and the sleeve.

[0012] Furthermore, the impact assembly includes a main valve core and a copper sleeve. The main valve core is movably disposed in the impact valve cavity and the jacket seat and has an installation gap between it and the sleeve. The copper sleeve is disposed in the installation gap and has an interference fit with the main valve core.

[0013] Furthermore, a second C-shaped oil seal ring, a baffle plate, a C-shaped retaining ring, and a double-lip skeleton dustproof ring are sequentially arranged from top to bottom between the bottom of the copper sleeve and the main valve core.

[0014] Furthermore, the jacket is threadedly connected to the jacket seat, and a spacer ring is provided between the jacket and the jacket seat.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) This utility model optimizes the hydraulic sealing structure of the impact hammer, which solves the problem of oil leakage during traditional use, leading to resource waste and environmental pollution, thereby reducing the maintenance cost of the equipment.

[0017] (2) The present invention optimizes the overall structure of the impact hammer, making the overall size small and compact, and making it flexible and convenient to use. It effectively solves the problems of inflexible use and inconvenient carrying of traditional hammers, greatly saves labor costs and improves the work efficiency of workers. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0019] Figure 1 A three-dimensional structural diagram of a novel hydraulic impact hammer provided by this utility model;

[0020] Figure 2 A side view of a novel hydraulic impact hammer provided by this utility model;

[0021] Figure 3 A structural cross-sectional view of a novel hydraulic impact hammer provided by this utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0024] Example

[0025] Please see Figures 1-3This embodiment provides a novel hydraulic impact hammer, including a valve body 1, a sleeve 2, a jacket seat 3, a jacket 4, a pressure assembly 5, and an impact assembly 6. One side of the valve body 1 has an oil inlet 11 and an oil outlet 12. The valve body 1 has a pressure valve chamber 13 and a control valve chamber 14 that are connected to each other. The oil inlet 11 and the oil outlet 12 are respectively connected to the pressure valve chamber 13. The pressure assembly 5 is disposed in the pressure valve chamber 13. A control valve core 7 is rotatably disposed in the control valve chamber 14. The middle part of the sleeve 2 is provided with a first oil passage 71 that communicates with the pressure valve chamber 13. The circumference of the control valve core 7 is provided with a through hole 72 that communicates with the first oil passage 71. The upper end of the sleeve 2 is connected to the valve body 1 by a screw. The middle part of the sleeve 2 is provided with an impact valve chamber 21. The through hole 72 of the control valve core 7 communicates with the impact valve chamber 21 through the second oil passage 15. The lower end of the sleeve 2 is connected to the jacket seat 3. The jacket seat 3 is threadedly connected to the jacket 4. The impact assembly 6 is disposed in the impact valve chamber 21 and the jacket seat 3.

[0026] Specifically, the pressure assembly 5 is used to apply pressure to the oil in the pressure valve chamber 13. It includes a first pressure cap 501, a first guide sleeve 502, a gasket 503, a pressure valve core 504, a push rod 505, a lock nut 506, and a spring 507. The first guide sleeve 502 is positioned at the upper part of the pressure valve chamber 103 via the gasket 503 and is pressed tightly by the first pressure cap 501. The pressure valve core 504 is movably positioned in the middle of the pressure valve chamber 13. The push rod 505 passes through the first guide sleeve 502 and the pressure valve core 504. The spring 507 is positioned at the lower part of the pressure valve chamber 504. The pressure valve core 504 is connected to the push rod 505 via the lock nut 506, and the lock nut 506 abuts against the spring 507. Under the action of the push rod 505, the pressure valve core 504 can move up and down in the pressure valve chamber 13, thereby applying pressure to the oil in the pressure valve chamber 13. The spring 507 assists in the reset of the pressure valve core 504.

[0027] Preferably, a single-lip skeleton dustproof ring 508 and a first C-type oil seal ring 509 are provided vertically between the first guide sleeve 502 and the push rod 505. The single-lip skeleton dustproof ring 508 can prevent dust from entering, and the first C-type oil seal ring 509 can prevent oil leakage.

[0028] Preferably, a first O-ring 510 is provided between the first guide sleeve 502 and the first pressure cap 501, and a second O-ring 511 is provided between the first guide sleeve 502 and the valve body 1. The first O-ring 510 and the second O-ring 511 are used for sealing.

[0029] Preferably, a wave-shaped spring pad 512 is provided at the bottom of the gasket 503 corresponding to the pressure valve core 504. The wave-shaped spring pad 512 can assist the pressure valve core 504 in buffering.

[0030] The control valve cavity 14 is provided with a second guide sleeve 16 on one side. The second guide sleeve 16 is pressed by a second pressure cap 17, and one end of the control valve core 7 is rotatably connected to the second guide sleeve 16.

[0031] Preferably, a third O-ring 18 is provided between the second guide sleeve 16 and the second pressure cap 17. The third O-ring 18 can prevent oil leakage.

[0032] Preferably, a fourth O-ring 8 is provided between the valve body 1 and the sleeve 2. The fourth O-ring 8 can prevent oil leakage.

[0033] Specifically, the impact assembly 6 includes a main valve core 61 and a copper sleeve 62. The main valve core 61 is movably disposed in the impact valve chamber 21 and the jacket seat 3, and has an installation gap between it and the sleeve 2. The copper sleeve 62 is disposed in the installation gap and is interference-fitted with the main valve core 61. The main valve core 61 impacts under the action of oil.

[0034] Preferably, a second C-type oil seal ring 63, a baffle plate 64, a C-type retaining ring 65, and a double-lip skeleton dustproof ring 66 are sequentially arranged from top to bottom between the bottom of the copper sleeve 62 and the main valve core 61. The second C-type oil seal ring 63 can prevent oil leakage, the C-type retaining ring 65 is used to fix the baffle plate 64, and the double-lip skeleton dustproof ring 66 can prevent dust from entering.

[0035] Preferably, a spacer ring 9 is provided between the jacket 4 and the jacket seat 3. The spacer ring 9 helps to reduce the noise generated during impact.

[0036] This new type of hydraulic impact hammer solves the problem of oil leakage, resource waste, and environmental pollution caused by traditional use by optimizing the hydraulic sealing structure, thereby reducing the maintenance cost of the equipment.

[0037] Furthermore, the new hydraulic impact hammer features an optimized overall structure design, resulting in a compact and lightweight design that is flexible and easy to use. This effectively solves the problems of inflexible use and inconvenient carrying of traditional hammers, significantly reducing labor costs and improving worker efficiency.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel hydraulic impact hammer, characterized in that: The device includes a valve body, a sleeve, a jacket seat, a jacket, a pressure assembly, and an impact assembly. The valve body has an oil inlet and an oil outlet on one side. The valve body contains a pressure valve chamber and a control valve chamber that are connected to each other. The oil inlet and outlet are respectively connected to the pressure valve chamber. The pressure assembly is disposed in the pressure valve chamber. A control valve core is rotatably disposed in the control valve chamber. The control valve core has a first oil passage in its middle that communicates with the pressure valve chamber. A through hole communicating with the first oil passage is provided on the periphery of the control valve core. The upper end of the sleeve is connected to the valve body. An impact valve chamber is disposed in the middle of the sleeve. The through hole of the control valve core communicates with the impact valve chamber through a second oil passage. The lower end of the sleeve is connected to the jacket seat, which is connected to the jacket. The impact assembly is disposed in the impact valve chamber and the jacket seat.

2. The novel hydraulic impact hammer according to claim 1, characterized in that: The pressure assembly includes a first pressure cap, a first guide sleeve, a gasket, a pressure valve core, a push rod, a lock nut, and a spring. The first guide sleeve is disposed on the upper part of the pressure valve cavity via the gasket and is pressed by the first pressure cap. The pressure valve core is movably disposed in the middle of the pressure valve cavity. The push rod passes through the first guide sleeve and the pressure valve core. The spring is disposed in the lower part of the pressure valve cavity. The pressure valve core is connected to the push rod via the lock nut and abuts against the spring via the lock nut.

3. A novel hydraulic impact hammer according to claim 2, characterized in that: A single-lip skeleton dustproof ring and a first C-type oil seal ring are provided between the first guide sleeve and the top rod, a first O-ring is provided between the first guide sleeve and the first pressure cap, and a second O-ring is provided between the first guide sleeve and the valve body.

4. A novel hydraulic impact hammer according to claim 2, characterized in that: A wave-shaped spring pad is provided at the bottom of the gasket corresponding to the pressure valve core.

5. A novel hydraulic impact hammer according to claim 1, characterized in that: A second guide sleeve is provided on one side of the control valve cavity. The second guide sleeve is pressed by a second pressure cover. One end of the control valve core is rotatably connected to the second guide sleeve.

6. A novel hydraulic impact hammer according to claim 5, characterized in that: A third O-ring is provided between the second guide sleeve and the second pressure cap.

7. A novel hydraulic impact hammer according to claim 1, characterized in that: The valve body is connected to the sleeve by screws, and a fourth O-ring is provided between the valve body and the sleeve.

8. A novel hydraulic impact hammer according to claim 1, characterized in that: The impact assembly includes a main valve core and a copper sleeve. The main valve core is movably disposed in the impact valve chamber and the jacket seat and has an installation gap between it and the sleeve. The copper sleeve is disposed in the installation gap and has an interference fit with the main valve core.

9. A novel hydraulic impact hammer according to claim 8, characterized in that: From top to bottom, a second C-shaped oil seal ring, a baffle plate, a C-shaped retaining ring, and a double-lip skeleton dustproof ring are sequentially arranged between the bottom of the copper sleeve and the main valve core.

10. A novel hydraulic impact hammer according to claim 1, characterized in that: The jacket is threadedly connected to the jacket seat, and a spacer ring is provided between the jacket and the jacket seat.

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