CN217477384U

CN217477384U - Speed reduction steering device suitable for industrial vehicle

Info

Publication number: CN217477384U
Application number: CN202221384645.6U
Authority: CN
Inventors: 杨崇光; 钟锁铭; 郑建; 刘波; 汪毓骏; 曹建华; 侯越锋
Original assignee: Changxing Yongxiang Machinery Co ltd; Noblelift Intelligent Equipment Co Ltd
Current assignee: Changxing Yongxiang Machinery Co ltd; Noblelift Intelligent Equipment Co Ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-09-23
Anticipated expiration: 2032-06-06

Abstract

The utility model relates to an automatic change mechanical equipment field, concretely relates to industrial vehicle turns to design of structure. The utility model discloses a can realize through following technical scheme: a deceleration steering device suitable for industrial vehicles comprises a main frame, a receiving shaft used for receiving steering power, a driving wheel connected with the main frame, a first wheel seat, a second wheel seat and a third wheel seat; a small wheel I is arranged on the wheel seat I and connected with the receiving shaft; the wheel seat II is provided with a large wheel I and a small wheel II, and the large wheel I is coaxially connected with the small wheel II. The utility model aims at providing a speed reduction turns to device suitable for industrial vehicle promotes the degree of slowing down that the vehicle turned to by a wide margin, improves the accurate nature of vehicle steering control, and compact structure, and the space occupies for a short time, satisfies the miniaturized lightweight design demand of vehicle.

Description

Speed reduction steering device suitable for industrial vehicle

Technical Field

The utility model relates to an automatic change mechanical equipment field, concretely relates to industrial vehicle turns to design of structure.

Background

Industrial vehicles refer to power-driven motor vehicles used to carry, push, pull, lift, stack, or palletize various loads. Common industrial vehicles are forklifts, side-lifts, tractors, trucks, fork lifts, and the like.

Industrial vehicles often include components such as a vehicle body, a battery box, an oil cylinder, a pump station, a controller and the like in structure, and the walking and steering functions of the vehicle body are mainly realized by a driving device and a steering device. For example, chinese patent publication No. CN201921101863.2 discloses a drive wheel steering mechanism. In this device, the steering of the drive wheels is controlled by a steering wheel. In order to have the function of steering and decelerating, the steering and decelerating device comprises a decelerating mechanism matched with a small gear and a large gear, wherein the small gear is connected with a steering wheel, the large gear is connected with a driving wheel, and the two gears are in meshing transmission through a rack.

However, this structure has certain drawbacks: on the one hand, the deceleration effect is not good. The reduction comes from the size ratio of two gears, is limited by the size, and the reduction effect of the last gear wheel is limited, so that the steering of the driving wheel is too fast, and the control accuracy of the driving process of a user is not facilitated. On the other hand, manufacturers need to increase the size of the large gear in order to increase the deceleration range, so that the overall size of the deceleration steering device is large, the deceleration steering device occupies a large vehicle component installation space, and the design requirement of vehicle lightening cannot be met in the operation environment of more narrow roadways of the logistics trolley.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a speed reduction turns to device suitable for industrial vehicle promotes the degree of slowing down that the vehicle turned to by a wide margin, improves the accurate nature of vehicle steering control, and compact structure, and the space occupies for a short time, satisfies the miniaturized lightweight design demand of vehicle.

The above technical object of the present invention can be achieved by the following technical solutions: a deceleration steering device suitable for industrial vehicles comprises a main frame, a receiving shaft used for receiving steering power, a driving wheel connected with the main frame, a first wheel seat, a second wheel seat and a third wheel seat;

a small wheel I is arranged on the wheel seat I and connected with the receiving shaft;

the wheel seat II is provided with a large wheel I and a small wheel II, and the large wheel I is coaxially connected with the small wheel II;

a second large wheel is arranged on the third wheel seat and is connected with the driving wheel and drives the driving wheel to steer;

the small wheel I and the large wheel I are in transmission connection through a conveying belt or a chain, and the small wheel II and the large wheel II are in transmission connection through the conveying belt or the chain.

Preferably, the first small wheel and the first large wheel are arranged on the same plane in the height direction, and the second small wheel and the second large wheel are arranged on the same plane in the height direction.

As the utility model discloses a preferred, still contain be used for adjusting self with the regulation seat of main frame horizontal direction distance, wheel seat two is installed adjust on the seat.

As the utility model discloses a preferred, the main frame contains the curb plate that extends in vertical direction, it contains the engaging lug to adjust the seat, the curb plate with all set up threaded hole on the engaging lug, both pass through adjusting bolt and connect.

As the utility model discloses a preferably, adjust the seat and contain and be used for holding the circle that holds of wheel seat two, the engaging lug is two, arrange in hold the both sides of circle.

Preferably, the first large wheel is lower than the second small wheel in the height direction.

As the utility model discloses a preferred, bull wheel two is installed and is driven on turning to the seat turn to the seat level and turn to, the drive wheel is installed on the wheel carrier, turn to the seat through the pivot with the wheel carrier is connected, the wheel carrier with turn to and install the shock pad between the seat.

As the utility model discloses a preferred, the shock pad is two, arranges respectively the both sides of drive wheel.

As the utility model discloses a preferred, the wheel carrier contains the main leaf that extends in the horizontal direction and the side protection piece that extends in vertical direction, the side protection piece pass through the shaft with the drive wheel is connected, the shock pad is installed on the main leaf.

As a preferred choice, be equipped with the connection platform that extends in the direction of height on the master slice, seted up the confession on the shock pad connect the counterpoint hole that the platform got into.

As the utility model discloses a preferred, the connection platform contains the basal portion and is located the portion of drawing in above the basal portion, the portion of drawing in from bottom to top, its cross section dwindles gradually.

As a preferred embodiment of the present invention, the first small wheel and the second small wheel have the same size, and the first large wheel and the second large wheel have the same size.

To sum up, the utility model discloses following beneficial effect has:

1. in the scheme, a technical design of three seats, four wheels and two speed reducers is adopted. On one hand, the two-time speed reduction ensures the speed reduction effect and the accuracy of steering control, and reduces the steering force when a user operates the vehicle to steer, and on the other hand, because the two-time speed reduction is adopted, the ideal speed reduction ratio is realized without the need of large wheels with very large size, and the space overstaffed caused by the arrangement of huge large wheels is avoided.

2. On one hand, the four wheels are highly staggered due to the double-plane design of the four wheels, so that a smaller installation space can be obtained; on the other hand, two wheels connected by the chain are arranged at the same height, so that transmission is smoother, and arrangement is more convenient.

3. The transverse movement of the wheel seat II enables the distance between the small wheel I and the large wheel I and the distance between the small wheel II and the large wheel II to be adjustable, so that the chain can keep a proper tension force.

4. The shock pad is two, arranges the both sides at the drive wheel, plays two side absorbing's effect.

5. The design of the furling part makes the contraposition connection easier on one hand, and on the other hand strengthens the connection effect and the strength of the bottom.

Description of the drawings:

FIG. 1 is a schematic diagram of example 1;

FIG. 2 is an installation schematic diagram of a second wheel seat, a main frame and an adjusting seat;

fig. 3 is a schematic view of the mounting of the wheel carrier and the steering seat.

In the figure:

1. wheel seat one, 2, wheel seat two, 3, wheel seat three, 41, steamboat one, 42, bull wheel one, 43, steamboat two, 44, bull wheel two, 5, receiving axle, 6, adjust seat, 61, hold the circle, 62, engaging lug, 63, adjusting bolt, 7, joint table, 8, shock pad, 91, main frame, 911, curb plate, 92, drive wheel, 93, wheel carrier, 931, main leaf, 932, side guard flap, 94, the seat that turns to, 95, pivot.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Embodiment 1, a deceleration steering apparatus suitable for an industrial vehicle such as a carrier, an AGV, a stacker, or the like. As shown in fig. 1, it includes a main frame 91, and the main frame 91 is a main load-bearing member of the vehicle body. A steering control member such as a handle or a steering wheel is also attached to the main frame 91, and is connected to the receiving shaft 5, and the receiving shaft 5 is rotated in the horizontal direction by a user's steering operation.

In the scheme, a technical design of three seats, four wheels and two speed reducers is adopted. Specifically, three independent wheel seats are adopted, namely a wheel seat I1, a wheel seat II 2 and a wheel seat III. The wheel base one 1 can be mounted on the main frame 91, and the wheel base one 1 is provided with the small wheel one 41 which is connected with the receiving shaft 5. Therefore, the rotation of the receiving shaft 5 drives the rotation of the small wheel I41.

And two wheels, namely a first large wheel 42 and a second small wheel 43 are arranged on the wheel seat II 2. The two wheels are concentrically arranged and connected to each other by a connecting shaft so as to rotate coaxially. Only one wheel, namely a large wheel II 44, is arranged on the wheel seat III 3.

The large wheels are larger in size, i.e. diameter, than the small wheels. The wheel may be a transfer wheel or a sprocket. If the transmission wheels are used, the transmission wheels are driven by a transmission belt, and if the transmission wheels are chain wheels, the transmission wheels are driven by a chain. In this embodiment, a sprocket is used.

The small wheel I41 and the large wheel I42 are in chain transmission, so that the small wheel I and the large wheel I have the same linear speed, and the angular speed of the large wheel I42 is lower than that of the small wheel I41. The angular velocity of the receiving shaft 5 is thus decelerated for the first time here.

The first large wheel 42 and the second small wheel 43 have the same angular velocity, and the second small wheel 43 and the second large wheel 44 are also connected through a chain, so that the angular velocity of the second large wheel 44 is further reduced. The second large wheel 44 is connected to the driving wheel 92 through a transmission component in the prior art, such as a rotary support, a bearing, etc., and the steering angular velocity of the second large wheel 44 is the steering angular velocity of the driving wheel 92. Therefore, two decelerations are made from the rotation of the receiving shaft 5 to the rotation of the last drive wheel 92. Therefore, the user can control the steering process of the vehicle, the steering is more precise, and the steering force of the user when the user operates the vehicle to steer is reduced. And because the speed is reduced twice, the ideal speed reduction ratio can be realized without the need of very large size of large wheels, and the space bloated caused by arrangement of huge large wheels is avoided.

The four wheels adopt double-layer space arrangement. As shown in FIG. 1, the first small wheel 41 and the first large wheel 42 are located on the same plane, and the second small wheel 43 and the second large wheel 44 are located on the other plane and are located on a higher plane. On one hand, the four wheels are highly staggered due to the two-plane design of the four wheels, so that a smaller installation space can be obtained; on the other hand, two wheels connected by the chain are arranged at the same height, so that the transmission is smoother, and the arrangement is more convenient.

As shown in fig. 2, the present invention also incorporates a real-time tension adjustment design. The main frame 91 includes a side plate 911 extending in a vertical direction, on which a screw hole is provided. The second wheel seat 2 is arranged on the adjusting seat 6, and the adjusting seat comprises a containing ring 61 positioned in the middle and a connecting lug 62 arranged on the outer surface of the containing ring. The wheel base 2 is mounted in the receiving ring 61, the coupling lug 61 likewise being provided with a threaded bore. The adjusting bolt 63 engages a conventional mechanical fitting, such as a nut or washer or cleat, through a threaded hole connecting the side plate 911 to the attachment lug 62. The depth of the threaded hole of the adjusting bolt 63 is adjusted, so that the horizontal distance between the adjusting seat 6 and the main frame 91 is flexibly adjustable. And the wheel seat I1 and the wheel seat III 3 are arranged on the main frame 91, the transverse movement of the wheel seat II 2 enables the distance between the small wheel I41 and the large wheel I42 and the distance between the small wheel II 43 and the large wheel II 44 to be adjusted, so that the chain can keep a proper tension force.

The height of the first large wheel 42 is lower than that of the second small wheel 43, the adjusting seat 6 is often arranged below the two wheels, the distance between the two connecting lugs 62 is as large as possible for the firmness of connection, and therefore the caliber of the accommodating ring 61 is not small. The design of the large wheel on the lower small wheel can be matched with the caliber requirement of the accommodating ring 61 better. In addition, such overall arrangement mode makes two chains can not sheltered from, and it is more convenient when the user changes, debugs two chains.

In the embodiment, the design of double-side buffering is adopted to improve the use comfort of a user and protect components. As shown in fig. 3, the wheel base 3 is mounted on a steering base 94 through a bearing, a rotary support and the like, and the steering base 94 is driven by the second bull wheel 44 to steer. In this embodiment, the rotational coupling stability of the second large wheel 44 is enhanced. Specifically, the second bull wheel 44 is mounted on the steering seat 94 through some connecting intermediate members, which may be common mechanical members such as connecting seats. The second bull wheel 44 is connected with the connecting seat by bolts and also connected with the connecting seat by a positioning pin shaft. This is because there is a slight clearance between the bolt and the thread, and the introduction of the positioning pin makes the connection between the second bull wheel 44 and the connecting base more compact and stable.

The wheel frame comprises a main plate 931 and a side guard plate 932 connected thereto. The side guard 932 is connected to the drive wheel 92 via a wheel shaft or the like on both sides of the drive wheel 92.

The main piece 931 is connected to the steering seat 94 through a rotating shaft 95, and there is a relative vertical swing motion therebetween. On the other hand, the main plate 931 is connected to the steering seat 94 through the cushion 8. The main piece 931 is provided with a connecting platform 7, which is generally cylindrical and includes a base portion and a folded portion, and the folded portion is gradually folded from bottom to top. The upper part of the cushion 8 is connected with the steering seat 94 through a fixing member such as a bolt, and the lower part is provided with an aligning hole for the connecting table 7 to enter. The design of the furling part makes the contraposition connection easier on one hand, and on the other hand strengthens the connection effect and the strength of the bottom. The two shock absorption pads 8 are arranged on two sides of the driving wheel 92, and play a role in double-side shock absorption.

Claims

1. A deceleration steering device suitable for an industrial vehicle, comprising a main frame (91), a receiving shaft (5) for receiving steering power, and a driving wheel (92) connected to the main frame (91), characterized in that: the device also comprises a wheel seat I (1), a wheel seat II (2) and a wheel seat III (3); a small wheel I (41) is arranged on the wheel seat I (1), and the small wheel I (41) is connected with the receiving shaft (5); the wheel seat II (2) is provided with a large wheel I (42) and a small wheel II (43), and the large wheel I (42) and the small wheel II (43) are coaxially connected; a large wheel II (44) is arranged on the wheel seat III (3), and the large wheel II (44) is connected with the driving wheel (92) and drives the driving wheel (92) to rotate; the small wheel I (41) and the large wheel I (42) are in transmission connection through a conveyor belt or a chain, and the small wheel II (43) and the large wheel II (44) are in transmission connection through the conveyor belt or the chain.

2. A deceleration steering device for industrial vehicles according to claim 1, characterized in that: the small wheel I (41) and the large wheel I (42) are arranged on the same plane in the height direction, and the small wheel II (43) and the large wheel II (44) are arranged on the same plane in the height direction.

3. A deceleration steering device for industrial vehicles according to claim 1, characterized in that: the bicycle frame further comprises an adjusting seat (6) used for adjusting the distance between the bicycle frame and the main frame (91) in the horizontal direction, and the wheel seat II (2) is installed on the adjusting seat (6).

4. A deceleration steering device for industrial vehicles according to claim 3, characterized in that: the main frame (91) contains curb plate (911) that extend at vertical direction, adjust seat (6) and contain engaging lug (62), curb plate (911) with all set up threaded hole on engaging lug (62), both connect through adjusting bolt (63).

5. A deceleration steering device for industrial vehicles according to claim 4, characterized in that: adjust seat (6) and contain and be used for holding circle (61) are held to wheel seat two (2), engaging lug (62) are two, arrange in hold the both sides of circle (61).

6. A deceleration steering device for industrial vehicles according to claim 5, characterized in that: the first large wheel (42) is lower than the second small wheel (43) in the height direction.

7. A deceleration steering apparatus for industrial vehicles according to any one of claims 1 to 6, characterized in that: the large wheel II (44) is installed on a steering seat (94) and drives the steering seat (94) to horizontally steer, the driving wheel (92) is installed on a wheel frame (93), the steering seat (94) is connected with the wheel frame (93) through a rotating shaft (95), and a shock absorption pad (8) is installed between the wheel frame (93) and the steering seat (94).

8. A deceleration steering device for industrial vehicles according to claim 7, characterized in that: the two shock absorption pads (8) are respectively arranged on two sides of the driving wheel (92).

9. A deceleration steering device for industrial vehicles according to claim 7, characterized in that: the wheel carrier (93) comprises a main blade (931) extending in a horizontal direction and a side guard blade (932) extending in a vertical direction, the side guard blade (932) is connected with the driving wheel (92) through a wheel axle, and the damper pad (8) is mounted on the main blade (931).

10. A deceleration steering device for industrial vehicles according to claim 9, characterized in that: be equipped with on main leaf (931) and connect platform (7) that extend in the direction of height, seted up the confession on shock pad (8) connect the counterpoint hole that platform (7) got into.

11. A deceleration steering device for industrial vehicles according to claim 10, characterized in that: the connecting table (7) comprises a base part and a furled part positioned above the base part, wherein the cross section of the furled part is gradually reduced from bottom to top.

12. A deceleration steering apparatus for industrial vehicles according to any one of claims 1 to 6, characterized in that: the first small wheel (41) and the second small wheel (43) are the same in size, and the first large wheel (42) and the second large wheel (44) are the same in size.