CN219911353U - Lead screw mounting structure in cylinder body - Google Patents
Lead screw mounting structure in cylinder body Download PDFInfo
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- CN219911353U CN219911353U CN202320514088.3U CN202320514088U CN219911353U CN 219911353 U CN219911353 U CN 219911353U CN 202320514088 U CN202320514088 U CN 202320514088U CN 219911353 U CN219911353 U CN 219911353U
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- 230000033001 locomotion Effects 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Abstract
The utility model relates to the field of screw rod devices, in particular to a screw rod installation structure in a cylinder body. The hydraulic cylinder comprises an oil cylinder body, a cylinder head and a cylinder bottom, wherein a piston is movably installed in the oil cylinder, one side of the oil cylinder is fixedly connected with a control valve through a connecting part, the piston comprises a piston sleeve movably installed in the oil cylinder body, a piston rod is arranged on one side of the piston sleeve, a mounting hole is formed in the piston rod, a screw rod is movably installed in the mounting hole, a screw rod nut matched with the screw rod is arranged in the piston sleeve, and one side of the screw rod extends out of the cylinder bottom in the direction of the control valve and is connected with a valve sleeve in the control valve. According to the utility model, through the cooperation of the structures such as the piston, the screw rod nut, the screw rod, the control valve and the like, the structure can be completely matched with the working flow of the piston in the oil cylinder and the control valve, the reciprocating motion of the piston is transmitted into the control valve through the screw rod, and the control component in the control valve is stably matched, so that the accurate control of the piston stroke is realized.
Description
Technical Field
The utility model relates to the field of screw rod devices, in particular to a screw rod installation structure in a cylinder body.
Background
The oil cylinder is also called a hydraulic cylinder, and is a hydraulic executing element capable of converting hydraulic energy into mechanical energy and performing linear reciprocating motion (or swinging motion). The device has simple structure and reliable operation. When it is used to realize reciprocating motion, it can eliminate speed reducer, and has no transmission clearance and smooth motion, so that it can be widely used in hydraulic systems of various machines.
The cylinder has a digital cylinder which has completely digital motion characteristics, namely: the frequency of the electric pulses corresponds to the movement speed of the oil cylinder, and the number of the electric pulses corresponds to the stroke of the oil cylinder, so that the effect of precisely controlling the stroke of the piston of the oil cylinder is achieved.
In the prior art, when the oil cylinder is used, in order to enable the control valve and the oil cylinder to generate linkage control, a piston in the cylinder body is required to be in transmission connection with a control part in the control valve, and a transmission structure adopted by the transmission connection is required to be stable and accurate. The connecting structure in the existing equipment is difficult to match with the control valve and the piston, and the transmission process is accurate and stable.
Disclosure of Invention
The utility model provides a screw rod installation structure in a cylinder body, which aims to solve the problems in the background technology.
In order to solve the problems, the utility model adopts the following technical scheme: the utility model provides a lead screw mounting structure in cylinder body, includes the hydro-cylinder of constituteing by cylinder body, cylinder end, bottom of the cylinder, movable mounting has the piston in the hydro-cylinder, hydro-cylinder one side is through connecting portion fixedly connected with control valve, the piston includes the piston sleeve of movable mounting in the cylinder body, piston sleeve one side is provided with the piston rod, be provided with the mounting hole in the piston rod, movable mounting has the lead screw in the mounting hole, be provided with the lead screw nut with the lead screw adaptation in the piston sleeve, one side of lead screw stretches out the bottom of the cylinder in the direction of control valve and is connected with the valve pocket in the control valve.
Compared with the prior art, the utility model has the beneficial effects that: the utility model discloses a cooperation of structures such as piston, screw-nut, lead screw, control valve makes this structure can cooperate the work flow of piston and control valve in the hydro-cylinder completely to reciprocating motion of piston passes through the lead screw transmission to like in the control valve, the control part in the stable cooperation control valve realizes the accurate control of piston stroke.
As a further improvement of the present utility model, the technical problem to be solved is: the screw rod of the device needs to be capable of rotating more flexibly.
In order to solve the technical problems, the utility model further adopts the following technical scheme: a bearing seat matched with the outer wall of the extending part of the screw rod is arranged between the cylinder bottom and the connecting part.
The beneficial effects of the improvement are as follows: through the setting of bearing frame, make the lead screw of this device can more nimble rotation.
As a further improvement of the present utility model, the technical problem to be solved is: the screw rod of the device is limited in the installation and operation process, and the axial deflection of the screw rod is prevented.
In order to solve the technical problems, the utility model further adopts the following technical scheme: one side of the bearing seat is provided with a limit nut which is matched with the outer wall of the extending part of the screw rod.
The beneficial effects of the improvement are as follows: through the setting of limit nut, make the lead screw of this device at installation and the in-process of operation, receive the restriction, prevent the axial skew of lead screw.
As a further improvement of the present utility model, the technical problem to be solved is: the connection between the screw rod and the valve sleeve of the device is required to be more stable and compact.
In order to solve the technical problems, the utility model further adopts the following technical scheme: the control valve is rotatably provided with a valve sleeve, and one side of the valve sleeve extends out of the control valve and is fixedly connected with one end of the screw rod extending out through a coupler.
The beneficial effects of the improvement are as follows: through the arrangement of the coupler, the connection relationship between the screw rod and the valve sleeve of the device is more stable and compact.
Drawings
Fig. 1 is a schematic elevational cross-sectional view of the present utility model.
Fig. 2 is a schematic diagram of the front cross-sectional structure of the cylinder of the present utility model.
FIG. 3 is an enlarged schematic view in partial section of the present utility model
The character labels in the figure are 1, a cylinder body; 2. a cylinder head; 3. a cylinder bottom; 4. a piston; 41. a screw nut; 42. a piston sleeve; 43. a piston rod; 44. a screw rod; 45. a mounting hole; 5. a bearing seat; 6. a limit nut; 7. a connection part; 8. a coupling; 9. a control valve; 91. and a valve sleeve.
Detailed Description
In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.
Example 1:
as shown in fig. 1-3, the screw rod mounting structure in the cylinder body comprises an oil cylinder composed of a cylinder body 1, a cylinder head 2 and a cylinder bottom 3, a piston 4 is movably mounted in the oil cylinder, one side of the oil cylinder is fixedly connected with a control valve 9 through a connecting part 7, the piston 4 comprises a piston sleeve 42 movably mounted in the cylinder body 1, one side of the piston sleeve 42 is provided with a piston rod 43, a mounting hole 45 is formed in the piston rod 43, a screw rod 44 is movably mounted in the mounting hole 45, a screw rod nut 41 matched with the screw rod 44 is arranged in the piston sleeve 42, one side of the screw rod 44 extends out of the cylinder bottom 3 along the direction of the control valve 9 and is connected with a valve sleeve 91 in the control valve 9, and a control part matched with the valve sleeve 91 is further arranged in the control valve 9 and used for accurately controlling the piston 4 in the oil cylinder.
The specific working principle is as follows: when the structure is used in a hydraulic cylinder (oil cylinder), an oil pump is connected with a control valve 9, and the control valve 9 is started to control the reciprocating motion of a piston 4 in the cylinder body 1; in the process of moving the piston 4, namely, the movement of the piston sleeve 42 and the piston rod 43 drives the screw nut 41 to move, the screw rod 44 in the mounting hole 45 is in threaded fit with the screw rod 44 to rotate, one end of the mounting hole 45 penetrates through the cylinder bottom 3 to be connected with the control valve 9, namely, the valve sleeve 91 in the control valve 9 is fixedly connected with the screw rod 44 and can rotate along with the reciprocating movement of the piston 4, and the control part in the control valve 9 can accurately control the stroke of the piston 4 according to the rotation of the valve sleeve 91. In the process, the structure can be completely matched with the working flow of the piston 4 and the control valve 9 in the oil cylinder, and the reciprocating motion of the piston 4 is transmitted to a control part in the control valve 9 through the screw rod 44, so that the control part in the control valve 9 is matched stably, and the accurate control of the stroke of the piston 4 is realized.
Example 2:
as shown in fig. 1-3, further optimization is performed on the basis of the above embodiments: a bearing seat 5 which is matched with the outer wall of the extending part of the screw rod 44 is arranged between the cylinder bottom 3 and the connecting part 7. The screw rod 44 of the device can rotate more flexibly through the arrangement of the bearing seat 5. One side of the bearing seat 5 is provided with a limit nut 6 which is matched with the outer wall of the extending part of the screw rod 44. Through the arrangement of the limit nut 6, the screw rod 44 of the device is limited in the installation and operation process, and the axial deflection of the screw rod 44 is prevented. The control valve 9 is rotatably provided with a valve sleeve 91, and one side of the valve sleeve 91 extends out of the control valve 9 and is fixedly connected with one end of the screw rod 44 extending out through a coupler 8. By the arrangement of the coupling 8, the connection relationship between the screw rod 44 and the valve sleeve 91 of the device is more stable and compact.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of this utility model, and it is noted that there is objectively no limit to the specific structure disclosed herein, since numerous modifications, adaptations and variations can be made by those skilled in the art without departing from the principles of the utility model, and the above-described features can be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.
Claims (4)
1. The screw rod mounting structure in the cylinder body comprises an oil cylinder consisting of a cylinder body (1), a cylinder head (2) and a cylinder bottom (3), wherein a piston (4) is movably mounted in the oil cylinder, and is characterized in that: the cylinder is characterized in that one side of the cylinder is fixedly connected with a control valve (9) through a connecting part (7), the piston (4) comprises a piston sleeve (42) movably mounted in the cylinder body (1), a piston rod (43) is arranged on one side of the piston sleeve (42), a mounting hole (45) is formed in the piston rod (43), a screw rod (44) is movably mounted in the mounting hole (45), a screw rod nut (41) matched with the screw rod (44) is arranged in the piston sleeve (42), and one side of the screw rod (44) extends out of the direction of the control valve (9) to be connected with a valve sleeve (91) in the control valve (9) through a cylinder bottom (3).
2. The in-cylinder lead screw mounting structure according to claim 1, wherein: a bearing seat (5) which is matched with the outer wall of the extending part of the screw rod (44) is arranged between the cylinder bottom (3) and the connecting part (7).
3. The in-cylinder lead screw mounting structure according to claim 2, wherein: one side of the bearing seat (5) is provided with a limit nut (6) which is matched with the outer wall of the extending part of the screw rod (44).
4. The in-cylinder lead screw mounting structure according to claim 1, wherein: the control valve (9) is rotatably provided with a valve sleeve (91), and one side of the valve sleeve (91) extends out of the control valve (9) to be fixedly connected with one end of the screw rod (44) extending out through a coupler (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320514088.3U CN219911353U (en) | 2023-03-16 | 2023-03-16 | Lead screw mounting structure in cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320514088.3U CN219911353U (en) | 2023-03-16 | 2023-03-16 | Lead screw mounting structure in cylinder body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219911353U true CN219911353U (en) | 2023-10-27 |
Family
ID=88434181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320514088.3U Active CN219911353U (en) | 2023-03-16 | 2023-03-16 | Lead screw mounting structure in cylinder body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219911353U (en) |
-
2023
- 2023-03-16 CN CN202320514088.3U patent/CN219911353U/en active Active
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