HST handle beneficial to steering and speed changing operation

Abstract

The utility model discloses an HST handle beneficial to steering and speed changing operation, and particularly relates to the field of external components of operating handles, the HST handle comprises an HST operating handle, a holding head is fixedly mounted at the top of the HST operating handle, a plurality of slots are formed in the outer wall of the holding head, at least two positioning shells are connected to the outer walls of the HST operating handle and the holding head in a sleeving manner, and the HST operating handle and the holding head are connected with the positioning shells in a sleeving manner. A positioning insertion plate is fixedly mounted on the inner wall of the positioning shell, and is clamped in an inner cavity of the insertion groove; the outer wall of the positioning shell is provided with a plurality of groups of inserting holes which are distributed in a cross shape, one side of the positioning shell is provided with a plurality of finger positioning sleeves through the inserting holes, and each group of inserting holes which are distributed in the cross shape comprises a central inserting groove and four inclined inserting grooves; by means of the inserting holes distributed in the cross shape and the two positioning shells, the effect that the HST operation handle is operated by two hands is achieved, and different holding angles and holding modes are formed by fingers.

Description

Technical Field

[0001] The utility model relates to the technical field of external components of operating handles, and more particularly to an HST handle which is beneficial to steering and speed-changing operations. Background Art

[0002] HST stands for Hydrostatie transoission, a hydrostatic transmission system. It consists of a closed circuit consisting of a plunger pump, a hydraulic motor, and control elements. By adjusting the swash plate angle of the hydraulic pump, the hydraulic oil pressure and flow rate are changed, and the speed of the hydraulic motor changes accordingly. The output shaft of the hydraulic motor is connected to the travel reducer to achieve infinitely variable driving speed.

[0003] Since the HST handle needs to be used for steering or speed shifting operations, the traditional rod-shaped HST handle is operated by holding it with one hand. If both hands are needed for fine operations, the hands need to be overlapped to operate, resulting in uneven hand grip force, which is the "fuzzy feel" phenomenon. Therefore, an HST handle that can easily adjust the grip method according to actual conditions is needed for actual use. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides an HST handle that is convenient for steering and speed shifting operations. By means of the sockets and two positioning shells arranged in a cross-shaped distribution, the HST operating handle can be operated with both hands to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: an HST handle that facilitates steering and shifting operations, comprising an HST operating handle, a grip head fixedly mounted on the top of the HST operating handle, a plurality of slots defined on the outer wall of the grip head, at least two positioning shells sleeved between the HST operating handle and the outer wall of the grip head, a positioning insert fixedly mounted on the inner wall of the positioning shell, the positioning insert being snap-fitted into the inner cavity of the slots;

[0006] The outer wall of the positioning shell is provided with multiple groups of holes arranged in a cross distribution. Multiple finger positioning sleeves are installed on one side of the positioning shell through the holes. Each group of holes arranged in a cross distribution includes a central slot and four oblique slots.

[0007] In a preferred embodiment, a bearing is installed on one side of the finger positioning sleeve, and a connecting bolt is connected to one side of the finger positioning sleeve through the bearing, and the connecting bolt is installed in the socket.

[0008] In a preferred embodiment, the outer wall of the connecting bolt and the inner wall of the insertion hole are provided with matching thread grooves, and the connecting bolt and the insertion hole are threadedly connected via the matching thread grooves.

[0009] In a preferred embodiment, an arc-shaped rubber support strip is fixedly mounted on the inner wall of the finger positioning sleeve.

[0010] In a preferred embodiment, an elastic strip and an elastic band are fixedly installed between the two positioning shells.

[0011] In a preferred embodiment, a pressure sensor is installed at the end of the positioning plug plate, and the pressure sensor is used to identify the contact state between the positioning shell and the grip head;

[0012] And / or the pressure sensors are provided in two, the two pressure sensors are defined as a left sensor and a right sensor respectively, and the combination of the two pressure sensors is used to simultaneously monitor the left and right unevenness of force feedback using data from the two sensors.

[0013] Technical effects and advantages of this utility model:

[0014] The cross-shaped sockets and two positioning shells create the effect of two-handed operation of the HST operating handle, which is conducive to forming different grip angles and gripping methods with fingers;

[0015] In the process of holding, using a pressure sensor can help record the pressure data during holding, so as to achieve the effect of monitoring the holding state, that is, the effect of recording the holding feel data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a partial structural sectional view of the utility model.

[0018] Figure 3 It is a schematic cross-sectional view of the central slot and the oblique slot of the utility model.

[0019] Figure 4 This is a schematic structural diagram of the HST housing of the present utility model.

[0020] Figure 5 This is a structural diagram of the control principle of the HST variable handle involved in the utility model.

[0021] Figure 6 The control system flow of the HST variable handle involved in this utility model Figure 1 .

[0022] Figure 7The control system flow of the HST variable handle involved in this utility model Figure 2 .

[0023] The accompanying drawings are marked as follows: 1HST housing, 2 angle displacement sensor, 3 worm gear, 4 worm, 5HST variable handle, 6 transition plate, 7 servo motor, 8 controller, 9HST operating handle, 10 grip head, 11 slot, 12 positioning shell, 13 center slot, 14 oblique slot, 15 connecting bolt, 16 bearing, 17 finger positioning sleeve, 18 arc-shaped rubber support strip, 19 positioning plug plate, 20 elastic strip, 21 elastic band, 22 pressure sensor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Refer to the instruction manual Figure 1-3 An HST handle that facilitates steering and speed shifting operations according to an embodiment of the present invention includes an HST operating handle 9. A gripping head 10 is fixedly mounted on the top of the HST operating handle 9. The gripping head 10 and the HST operating handle 9 are configured to form a single-lever operating handle in the prior art. A plurality of slots 11 are formed on the outer wall of the gripping head 10. The plurality of slots 11 are arranged in a ring-shaped pattern. At least two positioning shells 12 are sleeved on the outer walls of the HST operating handle 9 and the gripping head 10. A positioning insert 19 is fixedly mounted on the inner wall of the positioning shell 12. The positioning insert 19 is snap-fitted into the inner cavity of the slot 11.

[0026] The outer wall of the positioning shell 12 is provided with a plurality of groups of holes arranged in a cross distribution. A plurality of finger positioning sleeves 17 are installed on one side of the positioning shell 12 through the holes. Each group of holes arranged in a cross distribution includes a central slot 13 and four oblique slots 14. When the positioning insert plate 19 is stuck in the inner cavity of the slot 11, it is used to prevent the positioning shell 12 from being unstable when it is wrapped around the outer wall of the grip head 10; the hole is used to position the finger positioning sleeve 17, such as Figure 3 As shown, the jacks include oblique and horizontal ones, so that the insertion direction of the finger positioning sleeve 17 can be adjusted according to actual needs. At the same time, there are multiple groups of jacks, and the insertion position of the finger positioning sleeve 17 can also be adjusted, so that different people's fingers form different grip angles and gripping methods; especially the thumb parts of the two hands, such as Figure 1 As shown, when holding the handle with both hands, the thumb can exert better force because the thumb is more flexible than that of most users.

[0027] A bearing 16 is installed on one side of the finger positioning sleeve 17, and a connecting bolt 15 is connected to one side of the finger positioning sleeve 17 through the bearing 16, so that the finger positioning sleeve 17 can rotate on one side of the connecting bolt 15. The connecting bolt 15 is installed in the socket. The setting of the bearing 16 allows the finger positioning sleeve 17 to rotate on one side of the connecting bolt 15. When the connecting bolt 15 is fixed, the state of the finger can also be fine-tuned to improve the flexibility of use.

[0028] The outer wall of the connecting bolt 15 and the inner wall of the socket are provided with matching thread grooves, and the connecting bolt 15 and the socket are threadedly connected through the matching thread grooves. The installation method of the connecting bolt 15 and the socket includes an extrusion-type plug-in, that is, using high friction to form relative fixation. The installation method also includes the threaded connection in this solution, and can also cooperate with the bearing 16 to form a good installation effect. In addition, the shape of the groove is not drawn in the drawings of the specification to prevent misunderstanding and prevent others from misunderstanding the scope of protection of this solution. In this solution, any thread groove that can form a threaded connection can be used in this solution. The purpose is to facilitate connection and improve the stability of the connection.

[0029] An arc-shaped rubber support strip 18 is fixedly installed on the inner wall of the finger positioning sleeve 17. The arc-shaped rubber support strip 18 can be used in two ways, such as Figure 2 As shown, the arc-shaped rubber support strip 18 divides the finger positioning sleeve 17 into a large semicircular area and a small semicircular area. The two socket positions correspond to two usage methods. The small semicircular area is used to form a stronger wrapping restraint for the fingers, and the large semicircular area is used to increase the one-sided extrusion restraint of the back or fingertips. Both are used to fix the fingers, one strong restraint and the other relatively weak restraint.

[0030] An elastic strip 20 and an elastic band 21 are fixedly installed between the two positioning shells 12 . The elastic strip 20 and the elastic band 21 are used to wrap the two positioning shells 12 to the outside of the HST operating handle 9 and the grip head 10 .

[0031] A pressure sensor 22 is installed at the end of the positioning plug plate 19, and the pressure sensor 22 is used to identify the contact state between the positioning shell 12 and the grip head 10;

[0032] And / or two pressure sensors 22 are provided, the two pressure sensors 22 are defined as a left sensor and a right sensor respectively, and the combination of the two pressure sensors 22 is used to simultaneously monitor the left and right unevenness of force feedback;

[0033] The pressure sensor 22 is configured to detect whether the positioning shell 12 is in contact with the grip head 10, or whether the contact meets the requirements. This can be monitored by adjusting the preset threshold value of the pressure sensor 22. When the threshold value range of the pressure sensor 22 is not met, or when the threshold value of the pressure sensor 22 is exceeded, a warning can be issued in conjunction with a related whistle. The pressure sensor 22 can also cooperate with the microcontroller and storage unit contained in the device to implement a simple pressure data recording operation. This can also be used to analyze the number and frequency of small values ​​of the pressure sensor 22 during the two-handed operation of the handle, thereby correspondingly analyzing the force feedback of the two-handed operation. That is, in order to analyze the appropriate and safe "feel" through data, the occurrence of blurred feel can be reduced by using data warnings. In addition, two-handed operation and adjusting the finger operating angle can also reduce the occurrence of blurred feel.

[0034] In the scheme of configuring the pressure sensor 22, the number of the positioning housing 12 is two, so the two pressure sensors 22 can be defined as a left sensor and a right sensor, and the data of the two can be monitored and analyzed together, for example, the situation where the force feedback is large on one side and small on the other side can be recorded;

[0035] In order to explain clearly how to use the HST operating handle 9 and the actual control process of the HST operating handle 9, as shown in the following figure: Figure 4-7 As shown; The HST operating handle 9 considered in this scheme is used for the use of the crawler harvester during operation, which controls the steering and braking through electrical signals, improves the response efficiency of the harvester, and reduces fuel consumption;

[0036] The hardware control layer of the HST operating handle 9 is mainly composed of three parts: a servo motor reducer, an angular displacement sensor 2, and a controller 8. It should be noted that the servo motor reducer includes a reducer that meshes with the servo motor 7, the worm 4, and the worm wheel 3. The output shaft of the servo motor 7 is coaxially fixedly connected to the worm 4, and the worm wheel 3 is fixedly connected to the HST variable handle 5. The angular displacement sensor 2 is coaxially fixedly connected to the worm wheel 3 to detect the rotation angle of the worm wheel 3, that is, the rotation angle of the HST variable handle 5. The HST housing 1 is fixedly connected to the servo motor 7 and is also fixedly connected to the HST housing 1 through a transition plate 6.

[0037] In addition, the transition plate 6 is universal. By simply designing the connection hole, the HST electric speed regulation mechanism of the present invention can be connected to HST machines of different manufacturers and models. The controller 8 receives the HST target speed information, rotation direction and speed value, calculates the target angle value of the HST variable handle 5, and issues a drive instruction to the servo motor 7. The angle displacement sensor 2 feeds back the rotation angle value of the HST variable handle 5 until the HST variable handle 5 reaches the target angle value, and the servo motor 7 stops working. At this point, the HST completes a speed regulation process.

[0038] Based on the above explanation of the control process of the HST operating handle 9, it can be understood that the HST operating handle 9 needs to be combined with delicate tactile operation to achieve fine control. Therefore, adjusting the grip angle of the fingers and combining it with the two-handed clamping installation method can form a good feel for use.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An HST handle that facilitates steering and speed-changing operations, comprising an HST operating handle (9), characterized in that: A gripping head (10) is fixedly mounted on the top of the HST operating handle (9), a plurality of slots (11) are provided on the outer wall of the gripping head (10), at least two positioning shells (12) are sleeved on the outer wall of the HST operating handle (9) and the gripping head (10), a positioning plug-in plate (19) is fixedly mounted on the inner wall of the positioning shell (12), and the positioning plug-in plate (19) is snap-fitted into the inner cavity of the slots (11); The outer wall of the positioning shell (12) is provided with a plurality of groups of insertion holes arranged in a cross-distribution manner. A plurality of finger positioning sleeves (17) are installed on one side of the positioning shell (12) through the insertion holes. Each group of insertion holes arranged in a cross-distribution manner includes a central slot (13) and four oblique slots (14).

2. The HST handle for facilitating steering and speed shifting operations according to claim 1, characterized in that: A bearing (16) is installed on one side of the finger positioning sleeve (17), and a connecting bolt (15) is connected to one side of the finger positioning sleeve (17) through the bearing (16), and the connecting bolt (15) is installed in the socket.

3. The HST handle for facilitating steering and speed shifting operations according to claim 2, characterized in that: The outer wall of the connecting bolt (15) and the inner wall of the jack are provided with matching thread grooves, and the connecting bolt (15) and the jack are threadedly connected via the matching thread grooves.

4. The HST handle for facilitating steering and speed shifting operations according to claim 3, characterized in that: An arc-shaped rubber support strip (18) is fixedly mounted on the inner wall of the finger positioning sleeve (17).

5. The HST handle for facilitating steering and speed shifting operations according to claim 4, characterized in that: An elastic strip (20) and an elastic band (21) are fixedly installed between the two positioning shells (12).

6. The HST handle for facilitating steering and speed shifting operations according to claim 5, characterized in that: A pressure sensor (22) is installed at the end of the positioning plug plate (19), and the pressure sensor (22) is used to identify the contact state between the positioning shell (12) and the gripping head (10); And / or the pressure sensor (22) is set to two, the two pressure sensors (22) are defined as a left sensor and a right sensor respectively, and the combination of the two pressure sensors (22) is used to simultaneously monitor the left and right unevenness of force feedback using data from both.

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