A skid steer hydraulic breaking hammer guard
By designing a cooling and dust removal system on the hydraulic breaker, the problems of overheating and wear of the cylinder and piston in harsh environments are solved, extending the service life of the equipment and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YANTAI BAICAI MASCH EQUIP CO LTD
- Filing Date
- 2023-12-26
- Publication Date
- 2026-06-19
AI Technical Summary
When existing hydraulic breakers are used in harsh environments, the cylinder and piston are prone to vibration, overheating, and scoring, leading to frequent cylinder replacements, which increases costs and losses.
A protective device for a skid steer loader hydraulic breaker was designed, comprising cooling pipes, a water pump mechanism, vents, and a dust removal mechanism. The power mechanism is cooled by cooling water, a dustproof net prevents dust from entering, and the dust is removed by the air pump mechanism, thus extending the service life of the equipment.
It effectively prevents the power mechanism from overheating, improves ventilation efficiency, reduces dust ingress, extends the service life of the cylinder and piston, and reduces the frequency of maintenance and replacement.
Smart Images

Figure CN117702850B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of hydraulic breaker protection devices, and more particularly to a hydraulic breaker protection device for skid steer loaders. Background Technology
[0002] The hydraulic breaker in the prior art includes a rear housing, a cylinder and a front housing connected sequentially from top to bottom, and the rear housing, cylinder and front housing are fixedly connected by through bolts; it also includes a piston and a chisel, the piston is installed in the cylinder, and the chisel is installed in the front housing and located below the piston, and the piston can drive the chisel to move downward when it moves downward.
[0003] The piston is directly installed in the cylinder. When used in harsh working environments or due to improper operation, the cylinder and piston may vibrate, overheat, or be damaged. In severe cases, the cylinder and piston must be replaced before the machine can continue to be used. Since the cylinder is the core component of the hydraulic breaker, its value and cost are among the highest. If it is scrapped, the loss will be extremely serious.
[0004] Therefore, we propose a protective device for the hydraulic breaker of a skid steer loader to solve the above problems. Summary of the Invention
[0005] The purpose of this invention is to solve the problems in the prior art by proposing a protective device for the hydraulic breaker of a skid steer loader.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: it includes a housing, a power mechanism is provided inside the housing, and a breaker hammer is installed at the output end of the power mechanism;
[0007] The power mechanism is equipped with cooling pipes, and a cooling water tank is fixedly connected to the inner wall of the housing. One end of the cooling pipes is connected to the cooling water tank, and a water pump mechanism is installed inside the housing.
[0008] A collar is fixedly connected to the side wall of one end of the hydraulic breaker located outside the housing, and the power end of the pumping mechanism is connected to the side wall of the collar.
[0009] A ventilation opening is provided on one side of the shell, and a dustproof net is installed at the ventilation opening. A dust removal mechanism is provided on the side wall of the shell, located on the side of the dustproof net.
[0010] In the aforementioned skid steer loader hydraulic breaker protection device, the water pumping mechanism includes a first sleeve fixedly connected to the inner wall of the housing, a first piston slidably connected inside the first sleeve, the upper end of the first sleeve being connected to the end of the cooling pipe away from the water tank, and a first connecting rod fixedly connected to the lower end of the first piston. The lower end of the first connecting rod passes through the first sleeve and the inner wall of the housing in sequence and is fixedly connected to the side wall of the collar.
[0011] In the aforementioned skid steer loader hydraulic breaker protection device, the dust removal mechanism includes two fixed sets of guide bars, which are respectively set on the upper and lower sides of the dustproof net. Guide grooves are opened on the guide bars, and sliders are slidably connected in the guide grooves. A pipe is set between the two sliders, and an air blowing hole is set on one side of the pipe located on the dustproof net. A pumping mechanism for pumping air into the pipe is set inside the housing.
[0012] In the aforementioned skid steer loader hydraulic breaker protection device, the air pumping mechanism includes a second sleeve fixedly connected to the inner wall of the housing. A second sliding plug is slidably connected inside the second sleeve. A second connecting rod is fixedly connected to the lower end of the second sliding plug. The lower end of the second connecting rod passes through the second sleeve and the housing in sequence and is fixedly connected to the side wall of the collar. A one-way valve is installed on the second sliding plug. The upper end of the second sleeve is connected to the pipeline through an air guide pipe.
[0013] In the aforementioned skid steer loader hydraulic breaker protection device, a positioning hole is provided on the upper side wall of the housing.
[0014] Compared with existing technologies, the beneficial effects of the present invention are as follows:
[0015] 1. The reciprocating movement of the breaker hammer drives the first connecting rod to reciprocate through the collar. The reciprocating movement of the first connecting rod drives the first piston to move up and down. The up and down movement of the first piston draws water from the cooling water tank into the cooling pipe. The cooling water in the cooling pipe cools the power mechanism and prevents the power mechanism from operating at high temperatures for a long time.
[0016] 2. The ventilation openings allow the casing to be ventilated from the outside, the dust filter effectively prevents dust from entering, and the second connecting rod drives the second piston to move back and forth, removing dust from the dust filter through the exhaust holes on the pipe, thus improving its ventilation efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a protective device for a skid steer loader hydraulic breaker proposed in this invention;
[0018] Figure 2 This is a top view of a skid steer loader hydraulic breaker protection device proposed in this invention;
[0019] Figure 3 This is an enlarged view of the incomplete gear section structure in the protective device for a skid steer loader hydraulic breaker proposed in this invention;
[0020] In the figure: 1. Positioning hole, 2. First connecting rod, 3. First piston, 4. First sleeve, 5. Power mechanism, 6. Cooling pipe, 7. Cooling water tank, 8. Housing, 9. Guide bar, 10. Second sleeve, 11. Second connecting rod, 12. Collar, 13. Breaker, 14. Air guide pipe, 15. Dustproof net, 16. Slider, 17. Guide groove, 18. Pipe. Detailed Implementation
[0021] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.
[0022] Example
[0023] Reference Figure 1-3 A protective device for a skid steer loader hydraulic breaker includes a housing 8, a positioning hole 1 provided on the upper side wall of the housing 8, a power mechanism 5 provided inside the housing 8, and a breaker 13 installed at the output end of the power mechanism 5.
[0024] A cooling pipe 6 is wound around the power mechanism 5. A cooling water tank 7 is fixedly connected to the inner wall of the housing 8. One end of the cooling pipe 6 is connected to the cooling water tank 7. A water pumping mechanism is installed inside the housing 8. The water pumping mechanism includes a first sleeve 4 fixedly connected to the inner wall of the housing 8. A first piston 3 is slidably connected inside the first sleeve 4. The upper end of the first sleeve 4 is connected to the end of the cooling pipe 6 away from the water tank 7. A first connecting rod 2 is fixedly connected to the lower end of the first piston 3. The lower end of the first connecting rod 2 passes through the first sleeve 4 and the inner wall of the housing 8 in sequence and is fixedly connected to the side wall of the collar 12.
[0025] The breaker 13 is fixedly connected to a collar 12 on one side wall outside the housing 8, and the power end of the pumping mechanism is connected to the side wall of the collar 12.
[0026] A ventilation opening is provided on one side of the housing 8, and a dustproof net 15 is installed at the ventilation opening. A dust removal mechanism is provided on the side wall of the housing 8 on one side of the dustproof net 15. The dust removal mechanism includes two sets of fixed guide strips 9, which are respectively arranged on the upper and lower sides of the dustproof net 15. A guide groove 17 is provided on the guide strip 9, and a slider 16 is slidably connected in the guide groove 17. A pipe 18 is provided between the two sliders 16, and an air blowing hole is provided on one side of the pipe 18 near the dustproof net 15. The housing 8 is provided with a pumping mechanism for pumping air into the pipe 18. The pumping mechanism includes a second sleeve 10 fixedly connected to the inner wall of the housing 8. A second sliding plug is slidably connected inside the second sleeve 10. A second connecting rod 11 is fixedly connected to the lower end of the second sliding plug. The lower end of the second connecting rod 11 passes through the second sleeve and the housing 8 in sequence and is fixedly connected to the side wall of the collar 12. A one-way valve is installed on the second sliding plug. The upper end of the second sleeve 10 is connected to the pipe 18 through the air guide pipe 14.
[0027] When the crushing device is working, the breaker hammer 13 moves back and forth when impacting, which drives the first connecting rod 2 to move back and forth through the collar 12. The first connecting rod 2 moves back and forth, which drives the first piston 3 to move up and down. The first piston 3 moves up and down, which draws water from the cooling water tank 7 into the cooling pipe 6. The cooling water in the cooling pipe 6 cools the power mechanism 5, preventing the power mechanism 5 from operating at high temperature for a long time.
[0028] The vent design allows the housing 8 to be ventilated from the outside, the dust filter 15 effectively prevents dust from entering, and the second connecting rod 11 drives the second piston to reciprocate, removing dust from the dust filter 15 through the exhaust port on the pipe 18, thus improving its ventilation efficiency.
[0029] Although this document frequently uses terms such as 1. positioning hole, 2. first connecting rod, 3. first piston, 4. first sleeve, 5. power mechanism, 6. cooling pipe, 7. cooling water tank, 8. housing, 9. guide bar, 10. second sleeve, 11. second connecting rod, 12. collar, 13. breaker hammer, 14. air guide pipe, 15. dustproof net, 16. slider, 17. guide groove, and 18. pipe, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.
Claims
1. A protective device for a skid steer loader hydraulic breaker, comprising a housing (8), characterized in that: The housing (8) is provided with a power mechanism (5), and a breaker hammer (13) is installed at the output end of the power mechanism (5); The power mechanism (5) is equipped with a cooling pipe (6), the inner wall of the housing (8) is fixedly connected to a cooling water tank (7), one end of the cooling pipe (6) is connected to the cooling water tank (7), and a water pumping mechanism is installed inside the housing (8). The breaker (13) is fixedly connected to a collar (12) on one side wall outside the housing (8), and the power end of the pumping mechanism is connected to the side wall of the collar (12). A ventilation opening is provided on one side of the housing (8), and a dustproof net (15) is provided at the ventilation opening. A dust removal mechanism is provided on the side wall of the housing (8) on the side of the dustproof net (15). The pumping mechanism includes a first sleeve (4) fixedly connected to the inner wall of the housing (8), a first piston (3) is slidably connected inside the first sleeve (4), the upper end of the first sleeve (4) is connected to the end of the cooling pipe (6) away from the cooling water tank (7), the lower end of the first piston (3) is fixedly connected to a first connecting rod (2), and the lower end of the first connecting rod (2) passes through the first sleeve (4) and the inner wall of the housing (8) in sequence and is fixedly connected to the side wall of the collar (12); The dust removal mechanism includes two fixed guide bars (9), which are respectively set on the upper and lower sides of the dustproof net (15). The guide bars (9) are provided with guide grooves (17), and sliders (16) are slidably connected in the guide grooves (17). A pipe (18) is provided between the two sliders (16). The pipe (18) is provided with an air blowing hole on one side of the dustproof net (15). A pumping mechanism for pumping air into the pipe (18) is provided inside the housing (8). The pumping mechanism includes a second sleeve (10) fixedly connected to the inner wall of the housing (8). A second sliding plug is slidably connected inside the second sleeve (10). A second connecting rod (11) is fixedly connected to the lower end of the second sliding plug. The lower end of the second connecting rod (11) passes through the second sleeve and the housing (8) in sequence and is fixedly connected to the side wall of the collar (12). A one-way valve is installed on the second sliding plug. The upper end of the second sleeve (10) is connected to the pipeline (18) through the air guide pipe (14).
2. The protective device for a skid steer loader hydraulic breaker according to claim 1, characterized in that: The upper side wall of the housing (8) is provided with a positioning hole (1).