Gear switching device
By designing a gear switching device with a slider and gear meshing structure on the engineering equipment, the problem of inseparable gear switching hysteresis and control methods is solved, and independent switching between manual and automatic control is realized, which improves the safety and convenience of operation.
Patent Information
- Application Number
- CN202422778086.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-11-14
AI Technical Summary
The gear switching of existing engineering equipment has problems such as lag and manual and automatic control methods that cannot be separated, resulting in inconvenience in operation and safety hazards.
A gear switching device is designed to realize manual and automatic control independent switching through the slider and gear meshing structure. Using the coordination of the slider and gear, the gear position is switched by manually pulling the pull wire and the motor driving gear rotation respectively to ensure that the two methods do not affect each other.
The independence of manual and automatic gear switching is achieved, the control lag is reduced, and the operation safety and convenience is improved.
Smart Images
Figure CN223294232U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of engineering equipment, in particular to a gear switching device. Background Art
[0002] Remote control is now possible on some engineering equipment, allowing the driver to control the equipment from a remote operating room. Therefore, for some more dangerous construction locations, the driver does not need to operate directly in the equipment cab, which can effectively ensure the driver's safety and improve the driver's working environment.
[0003] However, since most of the current equipment is realized by adding a remote control system, many control devices need to be designed and adapted. Gear switching is a frequently used operation. Unlike conventional equipment, remotely controlled equipment needs to ensure that the requirements of manual switching and automatic switching are met at the same time. Some of the current switching devices are controlled by directly controlling the manual gear switching. This method is simple and crude, but there are also many problems. For example: when controlling the switching through the original manual switching method, the operation has a lag, which easily leads to the gear switching failure; secondly, manual and automatic control cannot be effectively distinguished. When there is a problem with the manual control method, the automatic method will also have problems accordingly, and there is no safe alternative plan.
[0004] Therefore, based on the above problems, a gear switch that can realize automatic and manual operation is proposed. Utility Model Content
[0005] In view of the above problems, the present invention provides a gear switching device for reducing the gear switching hysteresis and separating the automatic and manual switching modes to provide more control modes.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A gear shift device includes a support housing, an outer support member wrapping the support housing is provided on the outside of the support housing, a sliding cavity is provided in the support housing, a sliding bar is slidably provided in the sliding cavity, one end of the sliding bar is fixedly connected to a first pull wire connected to the gear position, and the other end is fixedly connected to a second pull wire for manual control;
[0008] A gear is rotatably provided on the supporting shell, the gear is connected to a driving source, and a rack meshing with the gear is provided on the slide bar.
[0009] Compared with the existing technology, the beneficial effects of the present invention are: through the setting of the slide bar, the gear position can be switched when controlling the movement of the slide bar, that is, by manually pulling the second pull wire, the manual control of the gear position can be achieved independently, and by starting the driving source connected to the gear, the gear can synchronously drive the slide bar and the first pull wire to move when rotating, and the gear position can be automatically controlled. Therefore, the manual and automatic control modes can be separated without affecting each other, and there is no control lag, which is more convenient and safe to use.
[0010] As a further improvement of the above solution, guide sleeves are respectively provided on both sides of the support shell for connecting the sliding cavity and the outer side of the support shell, and the first pull wire and the second pull wire pass through the guide sleeves respectively.
[0011] The technical effect of the above improvement is that the guide sleeve is provided mainly to prevent wear on the support shell when the first pull wire and the second pull wire move.
[0012] As a further improvement to the above solution, clamping blocks for clamping the first pull wire and the second pull wire are fixedly provided at both ends of the slide bar, and the clamping blocks are provided in pairs;
[0013] One side of the clamping surface of the clamping block is provided with a first concave groove and a second concave groove, the first groove is wider than the second groove, and a plurality of anti-slip grooves are provided on the inner wall of the second groove.
[0014] The technical effect of the above improvement is: through the set clamping block, the first pull wire and the second pull wire can be fixed at the two ends of the slide bar, and the first groove and the second groove can ensure that the first pull wire, the second pull wire and the clamping block are stably fixed to each other to prevent them from detaching during long-term use.
[0015] As a further improvement of the above solution, the clamping block is further provided with a mounting hole for facilitating fixation with the slide bar.
[0016] The technical effect of the above improvement is that the mounting hole can fix the clamping block on the slide bar, and provide a clamping force for the first pull wire and the second pull wire between the two clamping blocks.
[0017] As a further improvement of the above solution, a winding assembly is provided on the outer support member, a pull wire is provided on the winding assembly, and the pull wire and the second pull wire are fixed to each other.
[0018] The technical effect of the above improvement is that when automatic control is performed, the winding assembly can drive the pull wire to pull the second pull wire outward to avoid part of the second pull wire being wound in the sliding cavity.
[0019] As a further improvement of the above solution, elastic reset members are respectively provided at both ends of the sliding cavity to facilitate the contact and engagement between the rack and the gear on the sliding bar.
[0020] The technical effect of the above improvement is that the elastic reset member can keep the slider and the gear in a contact and meshing state under the elastic deformation of the elastic reset member, thereby avoiding the separation of the slider and the gear due to the long-term startup of the gear drive source. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic structural diagram of Example 1 of the present utility model;
[0022] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure at A in the middle;
[0023] Figure 3 for Figure 1 Schematic diagram of the local enlarged structure at B in the middle;
[0024] Figure 4 It is a structural diagram of the clamping block;
[0025] Figure 5 This is a schematic structural diagram of Example 2 of the present utility model;
[0026] Figure 6 This is a schematic diagram of the working status of Example 2 in automatic control mode.
[0027] In the figure: 10, support shell; 11, sliding cavity; 12, slide bar; 13, first pull wire; 14, second pull wire; 15, gear; 16, outer support member; 17, guide sleeve; 18, clamping block; 181, first groove; 182, second groove; 183, mounting hole; 19, elastic reset member; 20, winding assembly; 21, pull wire. DETAILED DESCRIPTION
[0028] In order to enable those skilled in the art to better understand the technical solution, the present invention is described in detail below in conjunction with the embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.
[0029] Example 1:
[0030] like Figure 1-4As shown, it is embodiment 1 of the present utility model, and the specific scheme of this embodiment is: a gear switching device, including a supporting shell 10, an outer side of the supporting shell 10 is provided with an outer support member 16 that wraps it, the outer support member 16 is a sheet metal shell, which can be fixed to each other between the equipment, and a sliding cavity 11 is provided in the supporting shell 10, and the supporting shell 10 is arranged in half. The sliding cavity 11 is an inwardly concave groove provided on one side of the supporting shell 10. After the two supporting shells are merged together, the grooves are combined into the sliding cavity 11, and a sliding bar 12 is slidingly provided in the sliding cavity 11, one end of the sliding bar 12 is fixedly connected to a first pull wire 13 connected to the gear position, and the other end is fixedly connected to a second pull wire 14 for manual control. When the second pull wire 14 is manually pulled, the second pull wire 14 drives the sliding bar 12 to move in the sliding cavity 11, thereby driving the first pull wire 13 to switch the gear position, thereby realizing manual control switching;
[0031] In addition, a gear 15 is rotatably provided on the support shell 10. The gear 15 is specifically provided in a groove of the support shell 10, and the groove is connected to the slide cavity 11. The gear 15 is connected to a driving source, which is a set motor. The slide bar 12 is provided with a rack that meshes with the gear 15. When the motor is started by controlling the motor, the motor drives the gear 15 to rotate, and the gear 15 meshes with the rack on the slide bar 12, which will drive the slide bar 12 to move in the slide cavity 11, thereby driving the gear to be automatically controlled and switched; through the above scheme, the automatic control mode and the manual control mode can be switched, so the two control switching modes do not affect each other, reducing the hysteresis of the control.
[0032] As a preferred embodiment of the above, guide sleeves 17 are respectively provided on both sides of the support shell 10 to connect the sliding cavity 11 and the outer side of the support shell 10. The first pull wire 13 and the second pull wire 14 pass through the guide sleeves 17 respectively. The guide sleeves 17 are made of softer material, which can prevent the first pull wire 13 and the second pull wire 14 from causing friction damage to the support shell 10.
[0033] As a preferred embodiment of the above embodiment, the two ends of the slide bar 12 are respectively fixed with clamping blocks 18 for clamping the first pull wire 13 and the second pull wire 14, and the clamping blocks 18 are arranged in pairs;
[0034] One side of the clamping surface of the clamping block 18 is provided with an inward-concave first groove 181 and a second groove 182, the first groove 181 is wider than the second groove 182, and a plurality of anti-slip grooves are provided on the inner wall of the second groove 182; the clamping block 18 is also provided with a mounting hole 183 for facilitating mutual fixation with the slide bar 12, and the mounting hole 183 can tighten the clamping block 18 by installing a fixing bolt on the slide bar 12, so that the clamping block 18 can clamp the first pull wire 13 and the second pull wire 14, and the first groove 181 and the second groove 182 can prevent the first pull wire 13 and the second pull wire 14 from detaching from the clamping block 18.
[0035] Example 2:
[0036] like Figure 5 、 6 As shown, this is Example 2 of the utility model. Compared with Example 1, the difference of this embodiment is that a winding assembly 20 is provided on the outer support member 16, and a pull wire 21 is provided on the winding assembly 20. The pull wire 21 and the second pull wire 14 are fixed to each other. In this embodiment, a clockwork disc is used for winding in the winding assembly 20, mainly to pull the second pull wire 14 outward to avoid the second pull wire 14 from being entangled in the sliding cavity 11 during the automatic control process and affecting the use.
[0037] As a preferred embodiment of the above, this embodiment has been further improved, that is, elastic reset members 19 are respectively provided at both ends of the slide cavity 11 to facilitate the mutual contact and engagement of the rack on the slide bar 12 and the gear 15. In this embodiment, the elastic reset member 19 is a rubber block with elasticity. The elastic reset member 19 is provided mainly to play an elastic pushing role on the slide bar 12. Figure 6 As shown, in an automatic control manner, the gear 15 drives the slide 12 to move on one side of the second pull wire 14, and the slide 12 disengages from the gear 15 when it moves to the extreme position. The gear 15 will not drive the slide 12 to continue rotating during the continuous rotation, but when the gear 15 stops rotating, the elastic push of the elastic reset member 19 will make the rack on the slide 12 contact with the gear 15, so as to continue to engage with the gear 15. Although the gear position connected to the first pull wire 13 will have a spring pull and contact between the slide 12 and the gear 15, the elastic reset member 19 further provides a reset push, and also avoids the collision of the slide 12 with the side wall of the slide cavity 11 under the continuous rotation of the gear 15.
[0038] It should be noted that, in this article, the terms include, contain or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used herein to illustrate the principles and implementation methods of the technical solution of the present utility model. The above examples are only used to help understand the method of the present utility model and its core idea. The above is only a preferred embodiment of the present utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present utility model, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should all be regarded as the scope of protection of the present utility model.
Claims
1. A gear switching device, characterized in that: The invention comprises a support shell (10), an outer support member (16) for wrapping the support shell (10) is provided on the outer side of the support shell (10), a sliding cavity (11) is provided in the support shell (10), a sliding bar (12) is slidably provided in the sliding cavity (11), one end of the sliding bar (12) is fixedly connected to a first pull wire (13) connected to a gear position, and the other end is fixedly connected to a second pull wire (14) for manual control; A gear (15) is rotatably provided on the supporting shell (10), the gear (15) is connected to a driving source, and a rack meshing with the gear (15) is provided on the slide bar (12).
2. The gear switching device according to claim 1, characterized in that: Guide sleeves (17) are provided on both sides of the support shell (10) for connecting the sliding cavity (11) and the outer side of the support shell (10), and the first pull wire (13) and the second pull wire (14) pass through the guide sleeves (17) respectively.
3. The gear switching device according to claim 1, characterized in that: Clamping blocks (18) for clamping the first pull wire (13) and the second pull wire (14) are fixedly provided at both ends of the slide bar (12), and the clamping blocks (18) are provided in pairs; A first concave groove (181) and a second concave groove (182) are provided on one side of the clamping surface of the clamping block (18); the first groove (181) is wider than the second groove (182); and a plurality of anti-slip grooves are provided on the inner wall of the second groove (182).
4. The gear shifting device according to claim 3, characterized in that: The clamping block (18) is also provided with a mounting hole (183) for facilitating mutual fixation with the slide bar (12).
5. A gear switching device according to any one of claims 1 to 4, characterized in that: A winding assembly (20) is provided on the outer support member (16), a pull wire (21) is provided on the winding assembly (20), and the pull wire (21) and the second pull wire (14) are fixed to each other.
6. The gear switching device according to claim 5, characterized in that: Elastic reset members (19) are respectively provided at both ends of the slide cavity (11) for facilitating the contact and engagement of the rack on the slide bar (12) and the gear (15).