High-precision vehicle-mounted turntable crane locking mechanism

Abstract

The invention relates to the technical field of vehicle-mounted rotary table crane locking, and discloses a high-precision vehicle-mounted rotary table crane locking mechanism which comprises a positioning seat, a base shell, a pin shaft and an outer cover, a spigot hole position matched with the bottom of the pin shaft is fixedly installed in the positioning seat, and a spigot guide cover is fixedly installed in the middle of the upper end of the base shell; the bottom end of the base shell is fixedly provided with a spigot cover, the spigot guide cover and the spigot cover are both rotationally connected to the outside of the pin shaft in a sleeving mode, the outer cover is fixedly installed on the outer side of the top of the base shell, the outside of the pin shaft is fixedly connected with a limiting ring in a sleeving mode, and a flat key is fixedly installed at the position, below the limiting ring, of the side portion of the pin shaft. According to the multi-point high-precision positioning and locking device, multi-point high-precision positioning and locking are achieved, the obvious shaking condition is effectively prevented, a limiting ring triggering signal is sensed through the lower limiting sensor and the upper limiting sensing assembly, and a rotary table shaft system can make a relative response.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted turntable driving locking, and more specifically, the present invention relates to a high-precision vehicle-mounted turntable driving locking mechanism. Background Art

[0002] A vehicle-mounted turntable driving is a walking device mainly composed of a walking vehicle platform and a rotating platform placed inside the vehicle platform. The existing vehicle-mounted turntable driving locking mechanism usually consists of a compression spring, a housing, an L-shaped pin shaft, and an upper cover. Among them, the compression spring is located between the inner hole of the housing and the outer diameter of the L-shaped pin shaft, and the upper cover seals to make the pin shaft located inside the housing. By pulling the L-shaped pin shaft to move in the housing to the small groove of the upper cover, one end of the L-shaped pin shaft is completely located in the inner hole of the housing. However, this structure has the following disadvantages: 1. The gap between the L-shaped pin shaft and the housing in the middle is large, resulting in low precision and obvious shaking, which affects the locking effect; 2. There is a lack of status signals. Before each turntable device works, personnel need to check, resulting in low efficiency, cumbersome test processes, high time costs, and prone to omissions, increasing the probability of accidents. Based on this, the present invention designs a high-precision vehicle-mounted turntable driving locking mechanism to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a high-precision vehicle-mounted turntable driving locking mechanism to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A high-precision vehicle-mounted turntable driving locking mechanism includes a positioning seat, a base housing, a pin shaft, and an outer cover. A counterbore hole position adapted to the bottom of the pin shaft is fixedly installed inside the positioning seat. A counterbore guide cover is fixedly installed in the middle of the upper end of the base housing. A counterbore cover is fixedly installed at the bottom end of the base housing. Both the counterbore guide cover and the counterbore cover are rotatably sleeved outside the pin shaft. The outer cover is fixedly installed on the outer side of the top of the base housing. A limiting ring is fixedly sleeved outside the pin shaft. A flat key is fixedly installed on the side of the pin shaft below the limiting ring. A side port is opened at the bottom side of the counterbore guide cover. A guide groove is opened at one end of the inner wall of the counterbore guide cover where the side port is located. The flat key is slidably connected with the guide groove. A limiting block is fixedly installed on the pin shaft below the flat key. A clamping groove is opened at the other end of the side of the counterbore guide cover where the side port is located. A lower limit induction component is arranged on one side of the upper end of the base housing. An upper limit induction component is arranged on the other side of the upper end of the base housing. A transmission blocking part is arranged outside the pin shaft below the limiting block. A compression spring is fixedly connected below the transmission blocking part on the counterbore cover. The compression spring is movably sleeved outside the pin shaft.

[0005] As a preferred technical solution of the present invention, a plurality of positioning holes a are provided on the surface of the positioning seat, and the plurality of positioning holes a are circularly and spaced apart.

[0006] As a preferred technical solution of the present invention, a plurality of positioning holes b are equidistantly spaced on the surface of the base housing, an assembly part is fixedly connected to the bottom side of the outer cover, and a plurality of positioning holes c are equidistantly spaced on the surface of the assembly part.

[0007] As a preferred technical solution of the present invention, the lower limit induction component includes a short bracket and a lower limit sensor, and the lower limit sensor is fixedly installed on the base housing through the short bracket.

[0008] As a preferred technical solution of the present invention, the upper limit induction component includes a long bracket and an upper limit sensor, and the upper limit sensor is fixedly installed on the base housing through the long bracket.

[0009] As a preferred technical solution of the present invention, the pin shaft movably penetrates through the top of the outer cover, and a handwheel assembly is arranged at the upper end of the pin shaft.

[0010] As a preferred technical solution of the present invention, the handwheel assembly includes a connecting part and an operating handwheel, the operating handwheel is fixedly connected to the top of the connecting part, and the connecting part is fixedly installed on the pin shaft.

[0011] As a preferred technical solution of the present invention, the cross-sectional shape of the transmission blocking part is annular, and the pin shaft and the transmission blocking part are integrally formed.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, the positioning seat and the base housing are respectively positioned and connected to the moving shaft surface and the static shaft surface of the vehicle-mounted turntable driving shaft system. When it is necessary to lock the pin shaft, the operating handwheel is pressed down to compress the compression spring of the transmission blocking part of the pin shaft. The flat key can slide linearly along the guide groove of the stop port guide cover and the stop port cover, and the flat key disengages from the guide groove, so that the bottom of the pin shaft is inserted into the stop port hole position. After reaching the position, the operating handwheel is rotated 90° and then the force is released, and the compression spring drives the flat key to enter the card slot of the stop port guide cover, so that the pin shaft and the positioning seat can be synchronously locked. The pin shaft, the stop port guide cover, the stop port cover and the stop port hole position are used to realize multi-point high-precision positioning and locking, prevent obvious shaking conditions, and are beneficial to the locking effect of the vehicle-mounted turntable driving.

[0013] By providing a lower limit induction component and an upper limit induction component, the present invention utilizes the lower limit sensor and the upper limit induction component to sense the trigger signal of the limit ring. After the turntable device receives the signal, the turntable shafting can make a corresponding response, indicating that the vehicle-mounted turntable driving locking state or the locking release state is satisfied, facilitating the operator to carry out the next step of work, thereby improving work efficiency and simplifying the test process, being beneficial to reducing time costs, preventing omissions, and reducing the probability of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. 1 is a first sectional structural schematic diagram of a high-precision vehicle-mounted turntable driving locking mechanism of the present invention; Figure 2 FIG. 2 is a second sectional structural schematic diagram of a high-precision vehicle-mounted turntable driving locking mechanism of the present invention; Figure 3 FIG. 3 is a first three-dimensional structural schematic diagram of a pin shaft and a spigot guide cover in a high-precision vehicle-mounted turntable driving locking mechanism of the present invention; Figure 4 FIG. 4 Figure 3 is an enlarged structural schematic diagram of part A in FIG. 3; Figure 5 FIG. 5 is a second three-dimensional structural schematic diagram of a pin shaft and a spigot guide cover in a high-precision vehicle-mounted turntable driving locking mechanism of the present invention; Figure 6 FIG. 6 Figure 5 is an enlarged structural schematic diagram of part B in FIG. 5; Figure 7 FIG. 7 is a three-dimensional structural schematic diagram of a high-precision vehicle-mounted turntable driving locking mechanism of the present invention; Figure 8 FIG. 8 is a three-dimensional structural schematic diagram of a base housing in a high-precision vehicle-mounted turntable driving locking mechanism of the present invention.

[0015] In the figures: 1, positioning seat; 101, spigot hole position; 102, positioning hole a; 2, base housing; 201, positioning hole b; 3, pin shaft; 301, limit ring; 302, flat key; 303, limit block; 304, transmission blocking part; 4, outer cover; 401, assembly part; 402, positioning hole c; 5, spigot guide cover; 501, side port; 502, guide groove; 503, clamping groove; 6, spigot cover; 601, compression spring; 7, lower limit induction component; 701, short bracket; 702, lower limit sensor; 8, upper limit induction component; 801, long bracket; 802, upper limit sensor; 9, handwheel assembly; 901, connection part; 902, operating handwheel. DETAILED DESCRIPTION OF THE INVENTION

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0017] As Figures 1 to 8 shown, the present invention provides a high-precision vehicle-mounted turntable driving locking mechanism, which includes a positioning seat 1, a base housing 2, a pin shaft 3, and an outer cover 4. A counterbore hole position 101 adapted to the bottom of the pin shaft 3 is fixedly installed in the positioning seat 1. If the bottom of the pin shaft 3 is inserted into the counterbore hole position 101, the pin shaft 3 and the positioning seat 1 can be synchronously locked. A counterbore guide cover 5 is fixedly installed in the middle of the upper end of the base housing 2, and a counterbore cover 6 is fixedly installed at the bottom end of the base housing 2. Both the counterbore guide cover 5 and the counterbore cover 6 are rotatably sleeved outside the pin shaft 3. The outer cover 4 is fixedly installed on the outer side of the top of the base housing 2. A limiting ring 301 is fixedly sleeved outside the pin shaft 3, and a flat key 302 is fixedly installed on the side of the pin shaft 3 below the limiting ring 301. A side port 501 is opened on the bottom side of the counterbore guide cover 5, and a guide groove 502 is opened at one end of the inner wall of the counterbore guide cover 5 corresponding to the side port 501. The flat key 302 is slidably connected to the guide groove 502. A limiting block 303 is fixedly installed on the pin shaft 3 below the flat key 302. A clamping groove 503 is opened at the other end of the side of the counterbore guide cover 5 corresponding to the side port 501. A lower limit induction component 7 is arranged on one side of the upper end of the base housing 2, and an upper limit induction component 8 is arranged on the other side of the upper end of the base housing 2. A transmission blocking part 304 is arranged outside the pin shaft 3 below the limiting block 303. A compression spring 601 is fixedly connected below the transmission blocking part 304 on the counterbore cover 6, and the compression spring 601 is movably sleeved outside the pin shaft 3.

[0018] Among them, as Figure 7 shown, a plurality of positioning holes a102 are opened on the surface of the positioning seat 1, and the plurality of positioning holes a102 are circularly and spacedly distributed, so that the positioning seat 1 can be positioned and connected to the moving shaft surface of the vehicle-mounted turntable driving shaft system.

[0019] Among them, as Figure 7 and Figure 8 shown, a plurality of positioning holes b201 are equidistantly and spacedly opened on the surface of the base housing 2, and an assembly part 401 is fixedly connected to the bottom side of the outer cover 4. A plurality of positioning holes c402 are equidistantly and spacedly opened on the surface of the assembly part 401, so that the base housing 2 and the outer cover 4 can be positioned and connected to the static shaft surface of the vehicle-mounted turntable driving shaft system.

[0020] Among them, as Figure 1 and Figure 2As shown, the lower limit induction component 7 includes a short bracket 701 and a lower limit sensor 702. The lower limit sensor 702 is fixedly installed on the base housing 2 through the short bracket 701. The upper limit induction component 8 includes a long bracket 801 and an upper limit sensor 802. The upper limit sensor 802 is fixedly installed on the base housing 2 through the long bracket 801. Both the lower limit sensor 702 and the upper limit sensor 802 are signal-connected to the turntable device.

[0021] Among them, as Figure 2 shown, the pin shaft 3 movably penetrates through the top of the outer cover 4, and a handwheel assembly 9 is arranged at the upper end of the pin shaft 3.

[0022] Among them, as Figure 3 shown, the handwheel assembly 9 includes a connecting portion 901 and an operating handwheel 902. The operating handwheel 902 is fixedly connected to the top of the connecting portion 901, and the connecting portion 901 is fixedly installed on the pin shaft 3.

[0023] Among them, as Figure 5 and Figure 6 shown, the cross-sectional shape of the transmission blocking portion 304 is annular, and the pin shaft 3 and the transmission blocking portion 304 are an integrally formed structure, achieving the purpose of ensuring the overall structural strength formed by the pin shaft 3 and the transmission blocking portion 304.

[0024] The working principle of the present invention: During use, the positioning seat 1 and the base housing 2 are respectively positioned and connected to the moving shaft surface and the static shaft surface of the vehicle-mounted turntable traveling shaft system. When the pin shaft needs to be locked, the operating handwheel 902 is pressed down to compress the compression spring 601 by the transmission part 304 of the pin shaft 3. The flat key 302 can slide linearly along the guide groove 502 of the stop port guide cover 5 and the stop port cover 6. The flat key 302 disengages from the guide groove 502, and the bottom of the pin shaft 3 is inserted into the stop port hole position 101. After reaching the position, the operating handwheel 902 is rotated 90° and then the force is released. The compression spring 601 drives the flat key 302 into the card slot 503 of the stop port guide cover 5, so that the pin shaft 3 and the positioning seat 1 can be locked synchronously. Moreover, the lower limit sensor 702 senses the trigger signal of the limit ring 301. After the turntable device receives the signal, the turntable shaft system stops working, indicating that the vehicle-mounted turntable traveling lock state is satisfied, which is convenient for the operator to carry out the next step of work. The multi-point high-precision positioning and locking are realized by using the pin shaft 3, the stop port guide cover 5, the stop port cover 6 and the stop port hole position 101. When the turntable needs to work after the vehicle arrives, the operating handwheel 902 is pressed down to compress the compression spring 601 by the transmission part 304 of the pin shaft 3. The flat key 302 disengages from the card slot 503, rotates 90° in the reverse direction and then the force is released. The compression spring 601 drives the flat key 302 to slide upward into the guide groove 502 of the stop port guide cover 5. At the same time, the limit block 303 enters the card slot 503 of the stop port guide cover 5 for limiting, and the bottom of the pin shaft 3 disengages from the stop port hole position 101, so that the positioning seat 1 is not locked. Moreover, the upper limit sensor 802 senses the trigger signal of the limit ring 301. After the turntable device receives the signal, the turntable shaft system starts to work, indicating that the vehicle-mounted turntable traveling lock release state is satisfied, which is convenient for the operator to carry out the next step of work.

[0025] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision vehicle-mounted turntable driving locking mechanism, characterized in that: It comprises a positioning seat (1), a base shell (2), a pin shaft (3) and an outer cover (4); A stop hole (101) adapted to the bottom of the pin shaft (3) is fixedly installed in the positioning seat (1), a stop guide cover (5) is fixedly installed in the middle of the upper end of the base shell (2), a stop cover (6) is fixedly installed at the bottom end of the base shell (2), the stop guide cover (5) and the stop cover (6) are both rotatably sleeved on the outside of the pin shaft (3), the outer cover (4) is fixedly installed on the top outer side of the base shell (2), a limit ring (301) is fixedly sleeved on the outside of the pin shaft (3), a flat key (302) is fixedly installed on the side of the pin shaft (3) below the limit ring (301), a side opening (501) is opened on the bottom side of the stop guide cover (5), a guide groove (502) is opened on the inner wall of the stop guide cover (5) at one end of the side opening (501), and the flat key (302) is slidably connected to the guide groove (502); A limit block (303) is fixedly installed on the pin shaft (3) below the flat key (302); a slot (503) is provided on the side of the stop guide cover (5) at the other end of the side opening (501); a lower limit sensing component (7) is provided on one side of the upper end of the base shell (2); an upper limit sensing component (8) is provided on the other side of the upper end of the base shell (2); a transmission stop portion (304) is provided outside the pin shaft (3) below the limit block (303); a compression spring (601) is fixedly connected to the stop cover (6) below the transmission stop portion (304); and the compression spring (601) is movably sleeved outside the pin shaft (3).

2. A high-precision vehicle-mounted turntable driving locking mechanism according to claim 1, characterized in that: A plurality of positioning holes a (102) are provided on the surface of the positioning seat (1), and the plurality of positioning holes a (102) are distributed at intervals in a circular shape.

3. A high-precision vehicle-mounted turntable driving locking mechanism according to claim 1, characterized in that: The surface of the base shell (2) is provided with a plurality of positioning holes b (201) at equal intervals, the bottom side of the outer cover (4) is fixedly connected with an assembly portion (401), and the surface of the assembly portion (401) is provided with a plurality of positioning holes c (402) at equal intervals.

4. A high-precision vehicle-mounted turntable driving locking mechanism according to claim 1, characterized in that: The lower limit sensing component (7) comprises a short bracket (701) and a lower limit sensor (702), and the lower limit sensor (702) is fixedly mounted on the base housing (2) via the short bracket (701).

5. The high-precision vehicle-mounted turntable driving locking mechanism according to claim 1 is characterized in that: The upper limit position sensing component (8) comprises a long bracket (801) and an upper limit position sensor (802), and the upper limit position sensor (802) is fixedly mounted on the base housing (2) via the long bracket (801).

6. A high-precision vehicle-mounted turntable driving locking mechanism according to claim 1, characterized in that: The pin shaft (3) movably passes through the top of the outer cover (4), and a hand wheel assembly (9) is provided at the upper end of the pin shaft (3).

7. A high-precision vehicle-mounted turntable driving locking mechanism according to claim 6, characterized in that: The handwheel assembly (9) comprises a connecting portion (901) and an operating handwheel (902), wherein the operating handwheel (902) is fixedly connected to the top of the connecting portion (901), and the connecting portion (901) is fixedly mounted on the pin shaft (3).

8. The high-precision vehicle-mounted turntable driving locking mechanism according to claim 1 is characterized in that: The cross-sectional shape of the transmission stopper (304) is annular, and the pin shaft (3) and the transmission stopper (304) are an integrally formed structure.

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