Ball screw type push rod
By designing the shells that slide and rotate with the rotation of the shell on the screw rot, the problem of continuous pressure on the measuring tool when the measurement tool is continuously pressed at the top of the screw, and the axial movement and rotation of the screw is realized, protecting the motor of the motor And avoid blocking and damage.
Patent Information
- Application Number
- CN202421127443.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-22
AI Technical Summary
In the prior art, the measuring tool continuously applies pressure when it is on the top of the screw, resulting in damage to the motor and screw.
Design a roller screw -type push rod, use the shell to slide on the screw, rotate the rotating part in the shell, drive the shell to slide, combined with the design of the slide parts and the sales sub -split, realize the axial movement and rotation of the screw rod, rotate the rotation of the screw rod Essence
Through this design, the problem of the motor's rotation and the top -wounded shell of the motor protects the motor, and the restrictions on the rotation source of the motor during the end surface are realized.
Smart Images
Figure CN222423419U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of screw rods, in particular to a ball screw type push rod. Background Art
[0002] In the prior art, the conventional solution for linear actuator motors is that the motor rotor drives the lead screw nut to rotate together, and the lead screw cannot rotate due to structural constraints, resulting in axial movement of the lead screw. If a stroke detection device is set at the lead screw, it will lead to problems such as complex structure, too large structure, difficult wiring, and incomplete integration; thus, the stroke detection device can only be set at the drive control board at the tail of the linear actuator motor; setting a stroke detection device at the tail of the linear actuator motor cannot directly detect the lead screw stroke, and the lead screw stroke data can only be obtained through the structure and software algorithm; the current measuring tool will continue to apply pressure to the top of the lead screw when it is located at the top of the lead screw, and the measuring tool is stationary at the current position, which will cause damage to the motor and the lead screw. Utility Model Content
[0003] The embodiment of the present application provides a ball screw type push rod, which solves the problem in the prior art that when the measuring tool is located at the top of the screw, it will continue to apply pressure to the top of the screw and the measuring tool will remain stationary at the current position, thereby causing damage to the motor and the screw.
[0004] The technical solution adopted in the embodiments of the present application is as follows.
[0005] A ball screw type push rod comprises a screw, a housing, a rotating part rotating in the housing, a sliding part arranged in the housing and a pin arranged on the screw; a guide groove is provided on the sliding part; the pin corresponds to the guide groove; a first groove is provided on the end surface of the guide groove; the first groove is in the shape of a circular groove; when the pin is located in the guide groove; the screw and the rotating part rotate relatively; when the pin is located in the first groove; the screw and the rotating part rotate synchronously.
[0006] As a further improvement of the above technical solution: the pin is vertically inserted into the screw rod.
[0007] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
[0008] 1. Since the shell slides on the screw rod, the rotating part rotates in the shell and the inner side wall of the rotating part meshes with the outer side wall of the screw rod. When the rotating part rotates, the shell is driven to slide along the length direction of the screw rod. A sliding part is fixedly connected in the shell. The sliding part is cylindrical and has a groove corresponding to the screw rod inside. A guide groove is opened on the inner side wall of the sliding part. A pin is fixedly connected to the screw rod. The pin corresponds to the guide groove. Two groups of guide grooves are opened relatively. A first groove is opened on the side wall of the guide groove. The first groove is a circular groove. The first groove corresponds to the pin and the pin can be located in the first groove and rotate. When the pin is located in the guide groove, the screw rod and the rotating part rotate relatively. At this time, the screw rod moves axially. When the pin is located in the first groove, the screw rod and the rotating part rotate synchronously. At this time, the screw rod rotates, thereby preventing the motor from being blocked or the pin from damaging the shell, thereby realizing the limitation of the power source of the rotation of the motor at the end face and protecting the motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a cross-sectional view of the ball screw type push rod in the utility model.
[0010] In the figure: 1, screw rod; 2, housing; 3, rotating member; 4, sliding member; 41, guide groove; 42, first groove; 5, pin. DETAILED DESCRIPTION
[0011] The embodiment of the present application provides a ball screw type push rod, which solves the problem in the prior art that when the measuring tool is located at the top of the screw, it will continue to apply pressure to the top of the screw and the measuring tool will remain stationary at the current position, thereby causing damage to the motor and the screw.
[0012] The technical solution in the embodiment of the present application is to solve the above problems, and the overall idea is as follows
[0013] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0014] A ball screw type push rod comprises a screw 1, a housing 2, a rotating member 3 rotating in the housing 2, a sliding member 4 arranged in the housing 2 and a pin 5 arranged on the screw 1; a guide groove 41 is provided on the sliding member 4; the pin 5 corresponds to the guide groove 41; a first groove 42 is provided on the end surface of the guide groove 41; the first groove 42 is in the shape of a circular groove; when the pin 5 is located in the guide groove 41; the screw 1 and the rotating member 3 rotate relatively; when the pin 5 is located in the first groove 42, the screw 1 and the rotating member 3 rotate synchronously.
[0015] The pin 5 is vertically inserted into the screw rod 1.
[0016] The housing 2 slides on the screw rod 1, and the rotating member 3 rotates in the housing 2 and the inner side wall of the rotating member 3 is meshed with the outer side wall of the screw rod 1. When the rotating member 3 rotates, the housing 2 is driven to slide along the length direction of the screw rod 1. A sliding member 4 is fixedly connected to the housing 2. The sliding member 4 is cylindrical and has a groove corresponding to the screw rod 1 inside. A guide groove 41 is provided on the inner side wall of the sliding member 4. A pin 5 is fixedly connected to the screw rod 1. The pin 5 corresponds to the guide groove 41. The guide groove 41 has two groups relatively. A first groove 42 is provided on the side wall of the guide groove 41. The first groove 42 is a circular groove. The first groove 42 corresponds to the pin 5 and the pin 5 can be located in the first groove 42 and rotate. When the pin 5 is located in the guide groove 41, the screw rod 1 and the rotating member 3 rotate relative to each other. At this time, the screw rod 1 moves axially. When the pin 5 is located in the first groove 42, the screw rod 1 and the rotating member 3 rotate synchronously. At this time, the screw rod 1 rotates, thereby preventing the motor from being blocked or the pin 5 from damaging the housing 2.
[0017] Since the housing 2 slides on the screw rod 1, the rotating member 3 rotates in the housing 2 and the inner wall of the rotating member 3 meshes with the outer wall of the screw rod 1, when the rotating member 3 rotates, the housing 2 is driven to slide along the length direction of the screw rod 1, and a sliding member 4 is fixedly connected to the housing 2. The sliding member 4 is cylindrical and has a groove corresponding to the screw rod 1. The inner wall of the sliding member 4 is provided with a guide groove 41. A pin 5 is fixedly connected to the screw rod 1. The pin 5 corresponds to the guide groove 41. The guide groove 41 is relatively provided with two groups, and the side of the guide groove 41 is provided with a guide groove 41. A first groove 42 is provided on the wall, and the first groove 42 is in the shape of a circular groove. The first groove 42 corresponds to the pin 5 and the pin 5 can be located in the first groove 42 and rotate. When the pin 5 is located in the guide groove 41, the screw rod 1 and the rotating member 3 rotate relative to each other. At this time, the screw rod 1 moves axially. When the pin 5 is located in the first groove 42, the screw rod 1 and the rotating member 3 rotate synchronously. At this time, the screw rod 1 rotates, thereby preventing the motor from being blocked or the pin 5 from damaging the housing 2, thereby limiting the power source of the motor's rotation at the end face and protecting the motor.
[0018] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.
[0019] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A ball screw type push rod, characterized in that: The invention comprises a screw rod (1), a housing (2), a rotating member (3) rotating in the housing (2), a sliding member (4) arranged in the housing (2), and a pin (5) arranged on the screw rod (1); a guide groove (41) is provided on the sliding member (4); the pin (5) corresponds to the guide groove (41); a first groove (42) is provided on the end surface of the guide groove (41); the first groove (42) is in the shape of a circular groove; when the pin (5) is located in the guide groove (41); the screw rod (1) and the rotating member (3) rotate relative to each other; when the pin (5) is located in the first groove (42); the screw rod (1) and the rotating member (3) rotate synchronously; the screw rod (1) slides in the housing (2).
2. The ball screw type push rod according to claim 1, characterized in that: The pin (5) is vertically inserted into the screw rod (1).