Tracked vehicle refitted remote control driving variable speed actuating mechanism

Abstract

The utility model relates to a remote-control-driving variable-speed actuating mechanism for modifying a tracked vehicle. The variable-speed actuating mechanism comprises an electric push rod; the large-end connector assembly is detachably installed at the large end of the electric push rod, and the large-end connector assembly is movably connected with the gear shift lever; the small end connector assembly is detachably installed at the small end of the electric push rod, and the small end connector assembly is movably connected with the gear shifting mechanism; and the PLC is electrically connected with the electric push rods, and the PLC is used for controlling extension or shortening of push rods in the electric push rods. The utility model mainly aims to provide a remote control driving variable speed actuating mechanism for modifying a tracked vehicle, which is used for adaptively modifying a gear engaging mechanism of an original tracked armored vehicle and meeting the requirement on gear engaging of the remote control armored vehicle.

Description

Technical Field

[0001] The utility model relates to a speed-changing actuator, in particular to a speed-changing actuator for a crawler vehicle modified for remote control driving. Background Art

[0002] In order to scientifically and effectively test, verify and evaluate the comprehensive effectiveness of new armored vehicles, a mobile armored vehicle with good mobility and protection capabilities is needed as a training tool. However, old tracked armored vehicles do not have remote control functions, so these old tracked armored vehicles can only be left idle, resulting in waste. Utility Model Content

[0003] The main purpose of the utility model is to provide a speed change actuator for remote control driving of a tracked vehicle, which adaptively modifies the gear-shifting mechanism of the original tracked armored vehicle to meet the demand for gear-shifting of the remotely controlled armored vehicle.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a speed change actuator for a tracked vehicle modified for remote control driving, comprising:

[0005] Electric actuator;

[0006] A large end joint assembly, which is detachably mounted on the large end of the electric push rod and is movably connected to the shift lever;

[0007] A small end joint assembly, which is detachably mounted on the small end of the electric push rod and is movably connected to the shift mechanism;

[0008] PLC controller, the PLC controller is electrically connected to the electric push rod, and the PLC controller is used to control the extension or shortening of the push rod in the electric push rod.

[0009] Preferably, the large end joint assembly includes a first fork joint, a first connecting rod and a first sleeve, one end of the first connecting rod is fixedly connected to the first sleeve, and the other end of the first connecting rod is fixedly connected to the first fork joint.

[0010] Further preferably, the first sleeve is sleeved on the large end of the electric push rod, and a first pin hole is provided at the large end of the electric push rod. A second pin hole matching the first pin hole is provided at the corresponding position of the first sleeve, and one end of the pin shaft passes through the first pin hole and the second pin hole in sequence and is connected with the cotter pin.

[0011] Preferably, the small end joint assembly includes a second fork joint, a second connecting rod, a connecting pipe joint and a second sleeve, the second connecting rod is a curved rod, one end of the second connecting rod is fixedly connected to the second sleeve, the other end of the second connecting rod is fixedly connected to one end of the connecting pipe joint, and the other end of the connecting pipe joint is detachably connected to the second fork joint.

[0012] Further preferably, the second sleeve is sleeved on the small end of the electric push rod, and a third pin hole is provided at the small end of the electric push rod. A fourth pin hole matching the third pin hole is provided at the corresponding position of the second sleeve, and one end of the second pin shaft passes through the third pin hole and the fourth pin hole in sequence and is connected with the second open pin.

[0013] The beneficial effects of the utility model are:

[0014] The utility model is suitable for the remote control gear shifting vehicle modified with a mechanical pull rod of a tracked armored vehicle. This actuator effectively solves the problem of inconvenience in modification due to small space and high modification cost of other methods, and also solves the problem of long switching time between driving modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a left side view of the speed-changing actuator of the utility model;

[0017] Figure 2 It is a top view of the speed-changing actuator of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the large end joint assembly of the speed-changing actuator of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the small end joint assembly of the speed-changing actuator of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the remote-controlled speed-changing actuator for a tracked vehicle before modification in actual installation;

[0021] Figure 6 It is a schematic diagram for comparing the assembly of the remote-controlled speed-changing actuator for a modified tracked vehicle of the present invention after modification in actual installation.

[0022] Description of Reference Numerals

[0023] 100. Electric push rod; 110. Cable;

[0024] 200, big end joint assembly; 201, first pin shaft; 202, first washer;

[0025] 203, first cotter pin;

[0026] 210, first fork-shaped joint; 220, first connecting rod; 230, first sleeve;

[0027] 300, small end joint assembly; 301, second pin shaft; 302, second gasket;

[0028] 303, second cotter pin;

[0029] 310, second fork-shaped joint; 320, second connecting rod;

[0030] 330, second casing; 340, connecting pipe joint; 341, inspection hole;

[0031] 350, double ear stop washer; 360, locking nut; 400, PLC controller;

[0032] a. 2nd and 3rd gear shifting device; b. 4th and 5th gear shifting device; c. 1st and 2nd gear shifting device;

[0033] d. Gearbox second and third gear pull arm; e. Gearbox fourth and fifth gear pull arm; f. Gearbox first reverse gear pull arm;

[0034] A. Second and third gear speed-changing actuator; B. Fourth and fifth gear speed-changing actuator;

[0035] C. First and reverse gear shift actuator; D. Improved second and third gear pull arms of the gearbox;

[0036] E. Improved gearbox fourth and fifth gear pulling arm; F. Improved gearbox first reverse gear pulling arm. DETAILED DESCRIPTION

[0037] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0038] like Figure 1 , Figure 2 and Figure 6As shown, this embodiment provides a speed change actuator for remote control driving of a modified tracked vehicle, including an electric push rod 100, a large end joint assembly 200, a small end joint assembly 300 and a PLC controller 400, wherein the electric push rod 100 and the PLC controller 400 are selected from mature and standardized products with high market reliability and good reputation. The large end joint assembly 200 is detachably mounted on the large end of the electric push rod 100, and the large end joint assembly 200 is movably connected to the shift lever, and the small end joint assembly 300 is detachably mounted on the small end of the electric push rod 100, and the small end joint assembly 300 is movably connected to the shift mechanism. The PLC controller 400 is electrically connected to the cable 110 of the electric push rod 100, and the PLC controller 400 is used to control the extension or shortening of the push rod in the electric push rod 100.

[0039] Specifically, in this embodiment, Figure 3 As shown, the large end joint assembly 200 includes a first fork joint 210, a first connecting rod 220 and a first sleeve 230. One end of the first connecting rod 220 is fixedly connected to the first sleeve 230, and the other end of the first connecting rod 220 is fixedly connected to the first fork joint 210. Specifically, one end of the first connecting rod 220 is screwed into the first sleeve 230, and then fixed by welding, so as to enhance the stability of the first connecting rod 220 and the first sleeve 230. Similarly, the first fork joint 210 is first screwed into the first connecting rod 220, and then the two are fixed by welding. When welding, pay attention to the relative positions of the first fork joint 210 and the first sleeve 230. Finally, the first fork joint 210, the first connecting rod 220 and the first sleeve 230 are formed into one body. In this embodiment, as Figure 1 As shown, the first sleeve 230 is sleeved on the large end of the electric push rod 100, and the large end of the electric push rod 100 is provided with a first pin hole, and a second pin hole matching the first pin hole is provided at a corresponding position of the first sleeve 230, and one end of the pin shaft passes through the first pin hole and the second pin hole in sequence and then plugs into the cotter pin. Specifically, the large end of the electric push rod 100 is installed on the φ10 pin shaft hole of the large end joint assembly 200 using the first pin shaft 201 and the first washer 202, and is locked with the first cotter pin 203 to prevent the first pin shaft 201 from falling off.

[0040] In this embodiment, if Figure 4As shown, the small end joint assembly 300 includes a second fork joint 310, a second connecting rod 320, a connecting pipe joint 340 and a second sleeve 330. The second connecting rod 320 is a curved rod. One end of the second connecting rod 320 is fixedly connected to the second sleeve 330, and the other end of the second connecting rod 320 is fixedly connected to one end of the connecting pipe joint 340. The other end of the connecting pipe joint 340 is detachably connected to the second fork joint 310. Specifically, one end of the second connecting rod 320 connected to the second sleeve 330 is firstly screwed into the second sleeve 330, and then fixed by welding. Similarly, one end of the second connecting rod 320 connected to the connecting pipe joint 340 is firstly screwed into the connecting pipe joint 340, and then fixed by welding, so that the second connecting rod 320, the second sleeve 330 and the connecting pipe joint 340 are integrated. Similarly, pay attention to the relative position of the second sleeve 330 and the second connecting rod 320 during welding. After one end of the second fork joint 310 passes through the nut and the double-ear stop washer 350, it is connected to the other end of the connecting pipe joint 340. Specifically, the locking nut 360 is screwed into the second fork joint 310, and then the double-ear stop washer 350 is inserted into the second fork joint 310 and screwed into the connecting pipe joint 340. The screwing length is adjusted according to actual requirements. Finally, the locking nut 360 is tightened, and the long side of the double-ear stop washer 350 is knocked down to be close to any side of the hexagonal plane of the pipe joint and the short side is close to any side of the hexagonal plane of the locking nut 360, so that the locking nut 360 cannot rotate, and further the second fork joint 310 cannot be screwed out. After tightening, observe whether the screwing length of the second fork joint 310 exceeds the inspection hole 341 at the inspection hole 341. When the screwing amount is insufficient, a different second fork joint 310 can be selected to meet the requirements, so as to further reduce the production cost.

[0041] In this embodiment, the second sleeve 330 is sleeved on the small end of the electric push rod 100, the small end of the electric push rod 100 is provided with a third pin hole, and a fourth pin hole matching the third pin hole is provided at a corresponding position of the second sleeve 330, and one end of the second pin shaft 301 passes through the third pin hole and the fourth pin hole in sequence and then plugs into the second cotter pin 303. Specifically, the small end of the electric push rod 100 is installed on the φ10 pin shaft hole of the small end joint assembly 300 by using the second pin shaft 301 and the second washer 302, and is locked by the second cotter pin 303 to prevent the second pin shaft 301 from falling off.

[0042] like Figure 5 and Figure 6As shown, according to the characteristics of the gear-engaging device of the tracked vehicle, a speed-changing actuator is used for two gears, that is, the first reverse gear speed-changing actuator C, the second and third gear speed-changing actuator A, and the fourth and fifth gear speed-changing actuator B are in the same position as the first reverse gear shifting device C, the second and third gear shifting device a, and the fourth and fifth gear shifting device b before the improvement, and the improved second and third gear pull arm D of the gearbox, the improved fourth and fifth gear pull arm E of the gearbox, and the improved first reverse gear pull arm F of the gearbox are at the same distance as the second and third gear pull arm d of the gearbox, the fourth and fifth gear pull arm e of the gearbox, and the first reverse gear pull arm f of the gearbox before the improvement. This embodiment provides a comparison of the remote control driving speed-changing actuator before and after modification. The example in the figure is modified with the shortest speed-changing device near the gearbox to meet the requirements of all gears. After modification, it is found that: the total length of the speed-changing mechanism has not changed, the installation method on both sides of the speed-changing mechanism has not changed, and the original matching parts can continue to be used. The modified tracked vehicle is converted between manual driving and remote control driving modes: during remote control driving, the gear lever of the original tracked vehicle is fixed firmly and cannot shake, the remote control driving switch on the vehicle is set to the "on" position, the PLC controller 400 is powered on, and the required gear is engaged according to actual needs and the gear shifting logic; during manual driving, the gear lever of the original tracked vehicle is released, the remote control driving switch on the vehicle is set to the "off" position, the PLC controller 400 assembly is powered off, the electric push rod 100 forms a rigid connection, and the driver can perform gear shifting operations according to the original tracked vehicle gear shifting habits, and remote control driving and manual driving can achieve mutual conversion in "seconds".

[0043] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A speed-changing actuator for a tracked vehicle modified for remote control driving, characterized in that: include: Electric actuator; A large end joint assembly, wherein the large end joint assembly is detachably mounted on the large end of the electric push rod, and the large end joint assembly is movably connected to the shift lever; A small end joint assembly, wherein the small end joint assembly is detachably mounted on the small end of the electric push rod, and the small end joint assembly is movably connected to the shift mechanism; A PLC controller is electrically connected to the electric push rod, and the PLC controller is used to control the extension or shortening of the push rod in the electric push rod.

2. The speed change actuator for remote control driving of a tracked vehicle according to claim 1, characterized in that: The large end joint assembly includes a first fork joint, a first connecting rod and a first sleeve, one end of the first connecting rod is fixedly connected to the first sleeve, and the other end of the first connecting rod is fixedly connected to the first fork joint.

3. The speed change actuator for remote control driving of a tracked vehicle according to claim 2, characterized in that: The first sleeve is sleeved on the large end of the electric push rod, and the large end of the electric push rod is provided with a first pin hole. A second pin hole matching the first pin hole is provided at the corresponding position of the first sleeve, and one end of the first pin shaft passes through the first pin hole and the second pin hole in sequence and is plugged into the first cotter pin.

4. The speed change actuator for remote control driving of a tracked vehicle according to claim 1, characterized in that: The small end joint assembly includes a second fork joint, a second connecting rod, a connecting pipe joint and a second sleeve. The second connecting rod is a curved rod. One end of the second connecting rod is fixedly connected to the second sleeve, the other end of the second connecting rod is fixedly connected to one end of the connecting pipe joint, and the other end of the connecting pipe joint is detachably connected to the second fork joint.

5. The speed change actuator for remote control driving of a tracked vehicle according to claim 4, characterized in that: The second sleeve is sleeved on the small end of the electric push rod, and the small end of the electric push rod is provided with a third pin hole. A fourth pin hole matching the third pin hole is provided at the corresponding position of the second sleeve, and one end of the second pin shaft passes through the third pin hole and the fourth pin hole in sequence and is plugged into the second cotter pin.

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