Hydraulic cylinder body with multiple oil holes
通过在液压缸体上加工多油孔,解决了空间有限但需增加油孔的问题,实现了油缸的正常运作和多油路连接,降低了改造成本。
Patent Information
- Application Number
- CN202423075898.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-12-13
AI Technical Summary
In the case of limited space of the hydraulic cylinder block, the oil connection holes of the existing cylinder block are fixed and cannot be easily moved or changed, resulting in high cost of large-scale transformation and the inability to add multiple oil holes to the existing cylinder block for easy connection with external equipment.
Multi-oil holes are processed on the existing metal cylinder block, including the access port, the rotation interface and the connection channel, forming multiple oil paths to ensure the normal operation of the oil cylinder and enrich the oil path connection method without changing the position of the external oil path.
It realizes that the oil circuit connection method of the oil cylinder is increased without changing the external oil hole position, which reduces the transformation cost, ensures the normal operation of the oil cylinder and the smooth flow of oil, and adapts to equipment connections at different locations.
Smart Images
Figure CN223089670U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of hydraulic components, and particularly relates to a hydraulic cylinder body with multiple oil holes. Background Art
[0002] Currently, an additional oil cylinder needs to be installed beside the hydraulic cylinder, but the space is very cramped. The positions of the existing cylinder body and the oil inlet are restricted and cannot be easily moved or changed. The oil holes already fixed on the mold cannot be moved, and the cost of a major modification to the entire hydraulic cylinder is too high. Therefore, a solution has to be found on the oil cylinder body. Summary of the Utility Model
[0003] The problem to be solved by the utility model is to provide a hydraulic cylinder body with multiple oil holes, which continues to process holes in various orientations on the existing integral metal cylinder body, facilitating direct orientation and connection with external equipment. The internal connection also enriches the oil passage, and it is a transformation that can be carried out on the existing cylinder body.
[0004] To solve the above problems, the utility model provides a hydraulic cylinder body with multiple oil holes. To achieve the above object, the technical solution adopted by the utility model to solve its technical problems is:
[0005] A hydraulic cylinder body with multiple oil holes includes: an oil cylinder cavity, including a hollow through cavity and a blind cavity located inside the cylinder body; an inlet, recessed in the side surface of the cylinder body, and the inlet can allow hydraulic oil to enter the cylinder body; a transfer interface, recessed in the side surface, top surface or bottom surface of the cylinder body, and the transfer interface can allow hydraulic oil to enter and exit the cylinder body; a connection passage, including a radial passage and an axial passage. The axial passage is parallel to the axis of the oil cylinder cavity, and the radial passage is vertically connected to the axial passage. The radial passage connects the inlet or the transfer interface to the oil cylinder cavity. One end of the axial passage is connected to the transfer interface on the top surface or the bottom surface of the cylinder body.
[0006] The beneficial effects of adopting the above technical solution are as follows: Without changing the position of the specified external oil hole inlet, multiple oil circuits are made so that the internal inlet is in the correct position, and then it is convenient to block the inlet to ensure the normal operation of the oil cylinder. The oil cylinder cavity is equivalent to the cylinder body of the hydraulic cylinder, and it can work with a piston rod. The inlet facilitates the entry of pressure hydraulic oil from the outside. The transfer interface facilitates the transfer of hydraulic oil to other equipment and the flow of hydraulic oil. The radial passage and the axial passage further enrich the oil circuit. The transfer interfaces located at different positions such as the side surface, top surface or bottom surface also facilitate the direct docking of the cylinder body with external equipment at different positions, avoiding the bending of external oil pipes. This application mainly continues to process various holes on the existing integral metal cylinder body, enriches its oil circuit, is a further modification to the existing equipment, and is a modification that controls costs.
[0007] As a further improvement of the present utility model, the access ports include a first access port, a second access port, a third access port, and a fourth access port; the adapter ports include a first adapter port, a second adapter port, a third adapter port, a fourth adapter port, and a fifth adapter port; the first adapter port, the third adapter port, and the fourth adapter port are located on the side vertical surface of the cylinder block, and the second adapter port and the fifth adapter port are located on the bottom surface of the cylinder block.
[0008] The beneficial effects of adopting the above technical solution are: the access ports and the adapter ports are refined.
[0009] As a further improvement of the present utility model, the radial channels include a first radial channel, a second radial channel, a third radial channel, and a fourth radial channel; the axial channels include a first axial channel, a second axial channel, and a third axial channel.
[0010] The beneficial effects of adopting the above technical solution are: the radial channels and the axial channels are refined.
[0011] As a further improvement of the present utility model, the first access port is communicated with the blind cavity through the first radial channel; the first adapter port is communicated with the blind cavity through the second radial channel; the second access port is communicated with the second adapter port through the first axial channel; the third adapter port is communicated with the through cavity through the third radial channel; the fourth adapter port is communicated with the through cavity through the fourth radial channel; the fourth radial channel is communicated with the fifth adapter port through the third axial channel.
[0012] The beneficial effects of adopting the above technical solution are: in addition to directly doing work on the piston rod in the cylinder block, a part of the hydraulic oil entering is also diverted to other external devices.
[0013] As a further improvement of the present utility model, the second radial channel and the first axial channel are in a cross shape, the third radial channel and the second axial channel are in a cross shape, and the fourth radial channel and the third axial channel are in a T shape.
[0014] The beneficial effects of adopting the above technical solution are: the cross shape is equivalent to having four subdivided oil circuits, and the T shape is equivalent to having three subdivided oil circuits.
[0015] As a further improvement of the present utility model, the inner diameter of the adapter port is smaller than the inner diameter of the access port.
[0016] The beneficial effects of adopting the above technical solution are: the large inner diameter of the access port ensures the flow rate when the oil enters.
[0017] As a further improvement of the present utility model, the inner diameter of the connecting channel is smaller than the inner diameter of the adapter port, and the inner diameters of the radial channel and the axial channel are equal.
[0018] The beneficial effects of adopting the above technical solution are: the radial channel and the axial channel have the same thickness, ensuring the uniformity of the internal oil circuit.
[0019] As a further improvement of the present utility model, the access port is a countersunk hole.
[0020] The beneficial effects of adopting the above technical solution are as follows: The countersunk hole is convenient for processing and facilitates the smooth connection between the access port and the radial channel. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0022] Figure 1 is the front view of an embodiment of the present utility model;
[0023] Figure 2 is the A-A cross-sectional view of an embodiment of the present utility model;
[0024] Figure 3 is the B-B cross-sectional view of an embodiment of the present utility model;
[0025] Figure 4 is the top view of an embodiment of the present utility model;
[0026] Figure 5 is the C-C cross-sectional view of an embodiment of the present utility model;
[0027] Figure 6 is the D-D cross-sectional view of an embodiment of the present utility model;
[0028] Figure 7 is the three-dimensional view of an embodiment of the present utility model;
[0029] Figure 8 is the three-dimensional view of an embodiment of the present utility model;
[0030] Figure 9 is the front view in the application state of an embodiment of the present utility model;
[0031] Figure 10 is the E-E cross-sectional view in the application state of an embodiment of the present utility model;
[0032] Figure 11 is the F-F cross-sectional view in the application state of an embodiment of the present utility model;
[0033] Figure 12 is the top view in the application state of an embodiment of the present utility model;
[0034] Figure 13 It is a G-G sectional view in the application state of an embodiment of the present utility model;
[0035] Figure 14 It is a perspective view in the application state of an embodiment of the present utility model;
[0036] Figure 15 It is an exploded view in the application state of an embodiment of the present utility model.
[0037] 1 - First access port; 2 - Second access port; 3 - Third access port; 4 - Fourth access port; 5 - First adapter; 6 - Second adapter; 7 - Third adapter; 8 - Fourth adapter; 9 - Fifth adapter; 10 - Through cavity; 101 - First cavity section; 102 - Second cavity section; 103 - Third cavity section; 104 - Fourth cavity section; 11 - Blind cavity; 111 - Fifth cavity section; 112 - Sixth cavity section; 113 - Seventh cavity section; 12 - Convex edge; 13 - Fixing hole; 14 - First radial channel; 15 - Second radial channel; 16 - Third radial channel; 17 - Fourth radial channel; 18 - First axial channel; 19 - Second axial channel; 20 - Third axial channel; 21 - First piston rod; 22 - Second piston rod; 23 - First sealing ring; 24 - Second sealing ring; 25 - Expansion section; 26 - Inner groove; 27 - Outer groove; 28 - Exposed section; 29 - Plugging head. Specific embodiments
[0038] The following combines specific embodiments to further elaborate on the content of the present utility model:
[0039] In order to achieve the purpose of the present utility model, a hydraulic cylinder body with multiple oil holes includes: an oil cylinder cavity, which includes a hollow through cavity 10 and a blind cavity 11 located inside the cylinder body; an access port, which is recessed in the side surface of the cylinder body and can allow oil to enter the cylinder body; an adapter, which is recessed in the side surface, top surface or bottom surface of the cylinder body and can allow oil to enter and exit the cylinder body; a connecting channel, which includes a radial channel and an axial channel. The axial channel is parallel to the axis of the oil cylinder cavity, and the radial channel is vertically connected to the axial channel. The radial channel connects the access port or the adapter to the oil cylinder cavity. One end of the axial channel is connected to the adapter on the top surface or bottom surface of the cylinder body.
[0040] The beneficial effects of adopting the above technical solution are as follows: Without changing the position of the specified external oil hole inlet, multiple oil circuits are made so that the internal inlets are in the correct positions, and then it is convenient to seal the inlets to ensure the normal operation of the oil cylinder. The oil cylinder cavity is equivalent to the cylinder block of a hydraulic cylinder, and it can work in combination with the piston rod. The inlets facilitate the entry of pressure oil from the outside. The adapter facilitates the transfer of oil to other equipment and the circulation of hydraulic oil. The radial channels and axial channels further enrich the oil circuit. The adapters located at different positions such as the side elevation, top surface, or bottom surface also facilitate the direct connection of the cylinder block to external equipment at different positions, avoiding the bending of external oil pipes. This application mainly processes various holes on the existing integrated metal cylinder block to enrich its oil circuit. It is a further modification of the existing equipment and a cost-controlled modification.
[0041] In some other embodiments of the present utility model, the inlets include a first inlet 1, a second inlet 2, a third inlet 3, and a fourth inlet 4; the adapters include a first adapter 5, a second adapter 6, a third adapter 7, a fourth adapter 8, and a fifth adapter 9; the first adapter 5, the third adapter 7, and the fourth adapter 8 are located on the side elevation of the cylinder block, and the second adapter 6 and the fifth adapter 9 are located on the bottom surface of the cylinder block.
[0042] The beneficial effects of adopting the above technical solution are as follows: The inlets and adapters are refined.
[0043] In some other embodiments of the present utility model, the radial channels include a first radial channel 14, a second radial channel 15, a third radial channel 16, and a fourth radial channel 17; the axial channels include a first axial channel 18, a second axial channel 19, and a third axial channel 20.
[0044] The beneficial effects of adopting the above technical solution are as follows: The radial channels and axial channels are refined.
[0045] In some other embodiments of the present utility model, the first inlet 1 is connected to the blind cavity 11 through the first radial channel 14; the first adapter 5 is connected to the blind cavity 11 through the second radial channel 15; the second inlet 2 is connected to the second adapter 6 through the first axial channel 18; the third adapter 7 is connected to the through cavity 10 through the third radial channel 16; the fourth adapter 8 is connected to the through cavity 10 through the fourth radial channel 17; the fourth radial channel 17 is connected to the fifth adapter 9 through the third axial channel 20.
[0046] The beneficial effects of adopting the above technical solution are as follows: In addition to directly doing work on the piston rod in the cylinder block, the entered hydraulic oil also divides a part to other external equipment.
[0047] In some other embodiments of the present utility model, the second radial channel 15 and the first axial channel 18 are in a cross intersection, the third radial channel 16 and the second axial channel 19 are in a cross intersection, and the fourth radial channel 17 and the third axial channel 20 are in a T-shaped intersection.
[0048] The beneficial effects of adopting the above technical solution are as follows: The cross intersection is equivalent to having four subdivided oil channels, and the T-shaped intersection is equivalent to having three subdivided oil channels.
[0049] In some other embodiments of the present utility model, the inner diameter of the adapter is smaller than the inner diameter of the inlet.
[0050] The beneficial effects of adopting the above technical solution are as follows: The large inner diameter of the inlet ensures the flow rate of the oil when it enters.
[0051] In some other embodiments of the present utility model, the inner diameter of the connecting channel is smaller than the inner diameter of the adapter, and the inner diameters of the radial channel and the axial channel are equal.
[0052] The beneficial effects of adopting the above technical solution are as follows: The radial channel and the axial channel have the same thickness, ensuring the uniformity of the internal oil channels.
[0053] In some other embodiments of the present utility model, the inlet is a countersunk hole.
[0054] The beneficial effects of adopting the above technical solution are as follows: The countersunk hole is convenient for processing and facilitates the smooth connection between the inlet and the radial channel.
[0055] A double-cylinder structure in a small space adopts the multi-orifice hydraulic cylinder body of the present application. A hollow oil cylinder cavity is dug inside the cylinder body. The oil cylinder cavity includes a through cavity 10 and a blind cavity 11. The axes of the through cavity 10 and the blind cavity 11 are parallel to each other; a piston rod is movably assembled in the oil cylinder cavity; a sealing ring is provided at the opening of the oil cylinder cavity; the oil cylinder cavity is a stepped hole with unequal local inner diameters, and there is a partial overlap in the axial projection of the through cavity 10 and the blind cavity 11; the surface of the sealing ring has a circumferential groove, and the circumferential groove includes an outer groove 27 located on the outer circle of the sealing ring and an inner groove 26 located on the inner circle of the sealing ring. The opening of the outer groove 27 contacts the inner wall of the oil cylinder cavity, and the opening of the inner groove 26 contacts the outer wall of the piston rod.
[0056] The beneficial effects of adopting the above technical solution are as follows: In this technical solution, an improved machining is carried out on an integral metal cylinder body, and two oil cylinder cavities, namely a through cavity and a blind cavity, are arranged in a cramped space. In order to make them close enough, it is set that there is a partial overlap in the axial projection of their axes. However, because both the through cavity and the blind cavity are stepped holes, in fact, the through cavity and the blind cavity are not directly connected. Only a part of the oil cylinder cavity with a relatively thick inner diameter is close to another oil cylinder cavity with a relatively thin inner diameter. Arranging two oil cylinder cavities in a small space controls the cost and is a suitable transformation. In addition, the inner groove and the outer groove work together to ensure the sealing of the oil.
[0057] In some other embodiments of the present utility model, the sealing ring further includes an exposed section 28 located outside the oil cylinder cavity.
[0058] The beneficial effect of adopting the above technical solution is that the exposed section of the sealing ring plays a certain buffering and protective effect.
[0059] In some other embodiments of the present utility model, according to different inner diameters, the through cavity 10 sequentially includes a first cavity section 101, a second cavity section 102, a third cavity section 103, and a fourth cavity section 104 along the axis in one direction, and the blind cavity 11 sequentially includes a fifth cavity section 111, a sixth cavity section 112, and a seventh cavity section 113 along the axis in one direction; the inner diameters of the fourth cavity section 104, the third cavity section 103, the first cavity section 101, and the second cavity section 102 gradually decrease, and the inner diameters of the fifth cavity section 111, the sixth cavity section 112, and the seventh cavity section 113 gradually decrease; the axial projection of the fifth cavity section 111 overlaps partially with the third cavity section 103 and the fourth cavity section 104.
[0060] The beneficial effect of adopting the above technical solution is that the shape of the stepped hole of the oil cylinder cavity is refined.
[0061] In some other embodiments of the present utility model, the axial projections of the inner wall cross-sections of the third cavity section 103 and the sixth cavity section 112 form two mutually externally tangent circles.
[0062] The beneficial effect of adopting the above technical solution is that it is convenient to accurately control the radial distance between the two oil cylinder cavities.
[0063] In some other embodiments of the present utility model, the sealing ring includes a first sealing ring 23 and a second sealing ring 24 respectively located in the through cavity 10 and the blind cavity 11; the first sealing ring 23 contacts the inner walls of the first cavity section 101 and the second cavity section 102 respectively, and the second sealing ring 24 contacts the inner walls of the fifth cavity section 111 and the sixth cavity section 112 respectively.
[0064] The beneficial effect of adopting the above technical solution is that the axial distance of the sealing ring is relatively long, ensuring the sealing performance of the oil fluid.
[0065] In some other embodiments of the present utility model, the inner groove 26 of the first sealing ring 23 is located in the first cavity section 101, the outer groove 27 of the first sealing ring 23 is located in the second cavity section 102, the inner groove 26 of the second sealing ring 24 is located in the fifth cavity section 111 and the sixth cavity section 112, and the outer groove 27 of the second sealing ring 24 is located in the sixth cavity section 112.
[0066] The beneficial effect of adopting the above technical solution is that the outer contour of the sealing ring is similar to a stepped shaft, fitting with the stepped hole in a concave-convex manner.
[0067] In some other embodiments of the present utility model, each sealing ring has a plurality of outer grooves 27 and inner grooves 26 respectively.
[0068] The beneficial effects of adopting the above technical solution are as follows: A plurality of outer grooves and inner grooves can form multiple sealing structures.
[0069] In some other embodiments of the present utility model, the piston rod includes a first piston rod 21 and a second piston rod 22 respectively located in the through cavity 10 and the blind cavity 11. One end of each of the first piston rod 21 and the second piston rod 22 radially protrudes outward to form an expansion section 25. The expansion section 25 is in sliding contact with the inner wall of the oil cylinder cavity. The expansion section 25 of the first piston rod 21 can move within the third cavity section 103, and the expansion section 25 of the second piston rod 22 can move within the sixth cavity section 112.
[0070] The beneficial effects of adopting the above technical solution are as follows: Only the movement of one section of the smooth hole in the piston rod is utilized, without being affected by the inner diameters of different sections of the stepped hole.
[0071] In some other embodiments of the present utility model, a plug 29 is assembled in the fourth cavity section 104 of the through cavity 10.
[0072] The beneficial effects of adopting the above technical solution are as follows: The plug seals one end of the through cavity, only exposing one end, achieving an effect equivalent to that of the blind cavity.
[0073] In some other embodiments of the present utility model, the sealing ring is made of rubber.
[0074] The beneficial effects of adopting the above technical solution are as follows: The rubber material has sufficient elasticity and sealing performance.
[0075] The above embodiments are only used to illustrate the technical concept and characteristics of the present utility model. The purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it. It cannot be used to limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit and essence of the present utility model should be covered within the protection scope of the present utility model.
Claims
1. A hydraulic cylinder block with multiple oil holes, characterized in that, Comprising: The oil cylinder cavity, including a hollow through cavity and a blind cavity located inside the cylinder block; The inlet, recessed in the side elevation of the cylinder block, and the inlet can allow hydraulic fluid to enter the cylinder block; The adapter port, recessed in the side elevation, top surface or bottom surface of the cylinder block, and the adapter port can allow hydraulic fluid to enter and exit the cylinder block; The connecting channel, including a radial channel and an axial channel, the axial channel is parallel to the axis of the oil cylinder cavity, and there is a perpendicular connection between the radial channel and the axial channel; The radial channel connects the inlet or the adapter port with the oil cylinder cavity; One end of the axial channel is connected to the adapter port on the top surface or bottom surface of the cylinder block.
2. The multi-oil-hole hydraulic cylinder body according to claim 1, wherein: The inlet includes a first inlet, a second inlet, a third inlet, and a fourth inlet; the adapter port includes a first adapter port, a second adapter port, a third adapter port, a fourth adapter port, and a fifth adapter port; The first adapter port, the third adapter port, and the fourth adapter port are located on the side elevation of the cylinder block, and the second adapter port and the fifth adapter port are located on the bottom surface of the cylinder block.
3. The hydraulic cylinder block with multiple oil holes according to claim 2, characterized in that: The radial channel includes a first radial channel, a second radial channel, a third radial channel, and a fourth radial channel; The axial channel includes a first axial channel, a second axial channel, and a third axial channel.
4. The multi-oil-hole hydraulic cylinder block according to claim 3, characterized in that: The first inlet is connected to the blind cavity through the first radial channel; the first adapter port is connected to the blind cavity through the second radial channel; the second inlet is connected to the second adapter port through the first axial channel; The third adapter port is connected to the through cavity through the third radial channel; the fourth adapter port is connected to the through cavity through the fourth radial channel; the fourth radial channel is connected to the fifth adapter port through the third axial channel.
5. The hydraulic cylinder block with multiple oil holes according to claim 4, characterized in that: The second radial channel and the first axial channel are in a cross shape; the third radial channel and the second axial channel are in a cross shape; the fourth radial channel and the third axial channel are in a T shape.
6. The multi-oil-hole hydraulic cylinder block according to claim 1, characterized in that: The inner diameter of the adapter port is smaller than the inner diameter of the inlet.
7. The hydraulic cylinder block with multiple oil holes according to claim 1, characterized in that: The inner diameter of the connecting channel is smaller than the inner diameter of the adapter port, and the inner diameters of the radial channel and the axial channel are equal.
8. The hydraulic cylinder block with multiple oil holes according to claim 1, characterized in that: The inlet is a countersunk hole.