WO2019128044A1

WO2019128044A1 - Multi-spindle box apparatus with adjustable shaft distance

Info

Publication number: WO2019128044A1
Application number: PCT/CN2018/087090
Authority: WO
Inventors: 喻道远; 徐秀兵; 朱碧华; 郑金来; 陈满意; 丁玲; 张猛; 崔海斌; 李玉萍; 周伯华; 张超勇; 龚时华; 朱海平; 邓超; 肖华军
Original assignee: 江苏高精机电装备有限公司
Priority date: 2017-12-27
Filing date: 2018-05-16
Publication date: 2019-07-04
Also published as: CN108167407B; CN108167407A

Abstract

The present invention relates to the field of machining. Disclosed is a multi-spindle box apparatus with an adjustable shaft distance, comprising a box body, as well as an input shaft and a plurality of output shafts provided in the box body and capable of implementing matching transmission by means of a transmission belt. The box body is provided with output shaft sliding grooves to enable the output shafts to slide in the sliding grooves back and forth, thereby achieving quick adjustment of a shaft distance between the output shafts. By configuring structures, such as a moving support assembly, bearings, bearing end covers, and threaded grooves, quick installation and removal of the transmission belt, and stable positioning of the output shafts after the adjustment of the shaft distance are achieved. The multi-spindle box apparatus with an adjustable shaft distance in the present invention is simply structured, easy to assemble and disassemble, and low in maintenance cost, and can effectively and quickly achieve the adjustment of the shaft distance between the output shafts and the fixed connection of the output shafts, thus reducing the application cost of a multi-spindle box, improving the machining precision and efficiency of the multi-spindle box, and greatly prompting the application of the multi-spindle box.

Description

Multi-axis box device with adjustable wheelbase

Technical field

The invention belongs to the field of mechanical processing, and particularly relates to a multi-axis box device with adjustable wheelbase.

Background technique

With the rapid development of modern industry, new requirements are put forward for the efficiency and precision of machining. In the process of machining, there are often multiple machining operations on the same processing surface of the machined parts. In order to improve the efficiency of machining, the existing machining process usually adopts the method of setting multi-axle box to improve the processing efficiency. Therefore, with the continuous development of the machining industry, the application of multi-axle boxes is increasing.

The wheelbase of the output shaft used to machine parts in a conventional multi-axle box is usually fixed and is often used to machine the same parts. However, as the machining parts need to be machined, the conventional wheelbase is fixed. The axle box can not meet the processing requirements, and it is necessary to replace the multi-axle box with the corresponding wheelbase to meet the processing needs, which greatly improves the processing cost of the components and the use cost of the multi-axle box; although there are many in the prior art An adjustable multi-axis is installed in the axle box to adjust the wheelbase. To some extent, the wheelbase adjustment function is realized and the machining needs are met. However, the adjustable multi-axle is usually composed of a gear and a universal joint. Although it can be adjusted within a certain range, it will produce severe vibration and offset due to the centrifugal force when the drive shaft rotates at high speed, which greatly affects the machining accuracy of the parts and improves the failure rate. Material waste and processing cost increase, and the transmission shaft and the universal joint must be strictly meet the requirements of dynamic balance when assembling, which undoubtedly brings about the assembly and maintenance of the equipment. The difficulty, also had a negative impact on the machining accuracy of multi-axle box.

Summary of the invention

In view of the above drawbacks or improvement requirements of the prior art, the present invention provides a multi-axle device with adjustable wheelbase, wherein an output shaft slip groove for output shaft slip is provided on the multi-axle box body. The output shaft can reciprocally slide in the sliding groove, and the long thread groove and the bearing end cover are arranged to realize the stable connection between the output shaft and the multi-axle box after sliding, which not only realizes the rapid output shaft wheelbase. The adjustment also greatly reduces the vibration and offset of the output shaft, improves the processing efficiency and machining accuracy of the multi-axle box, reduces the processing cost of the parts, and promotes the application of the multi-axle box.

In order to achieve the above object, the present invention provides a multi-axle device with adjustable wheelbase, comprising a box body and an input shaft and a plurality of output shafts disposed in the box body and capable of matching transmission of the belt, each of the output shafts and An output pulley and an input pulley that are matched with the transmission belt are respectively disposed on the input shaft, wherein

An auxiliary roller is disposed in the box corresponding to the transmission belt, which is two disposed on two sides of the output shaft axis and can tighten the transmission belt sleeved on the input pulley to make the belt a triangular structure, and the side of the triangular structure opposite to the input shaft is just matched to the output pulley on each of the output shafts, so that the belt and the respective belts can be sequentially driven by the rotation of the input shaft Output shaft motion;

Corresponding to the plurality of output shafts on the casing, an output shaft sliding groove extending through the side wall of the casing, the first sliding groove and the second oppositely disposed on opposite side wall surfaces of the casing a sliding groove, each of the output shafts is respectively arranged in parallel along the first sliding groove and the second sliding groove at one end thereof, and arranged in parallel in the output shaft sliding groove, each of the output shafts The axes are in the same plane and each of the output shafts can reciprocate along the length of the output shaft slip groove on the axis plane to achieve adjustment of the wheelbase between the output shafts.

As a further improvement of the present invention, the input shaft and each of the output shafts are vertically spaced apart, and the input shaft may be located above or below each of the output shafts.

As a further improvement of the present invention, the axes of the output shafts are on the same horizontal plane, that is, the slot direction of the output shaft slip grooves is horizontal, so that the output shafts can reciprocate in the horizontal direction to change The wheelbase between each of the output shafts.

As a further improvement of the present invention, the transmission belt is further provided with a moving support assembly, which comprises a guide rail disposed at the bottom of the box body, two rollers disposed at two ends of the rail and reciprocally movable and fixed on the rail a sliding platform, and a support rod vertically disposed on each of the sliding platforms and respectively for supporting the auxiliary roller, the sliding platform can drive the support rod corresponding thereto and the support rod The auxiliary roller slides along the axial direction of the guide rail to effect tensioning of the drive belt and to cause the drive belt to be press-fitted with each of the output pulleys on each of the output shafts.

As a further improvement of the present invention, a bearing is disposed between the input shaft and the output shaft and the casing, and a bearing end cover is disposed at an end of the bearing for passing through the bearing end A cover secures the input shaft and the output shaft to the housing.

As a further improvement of the present invention, a thread groove is respectively formed on the outer wall surface of the casing corresponding to the longitudinal direction of the first sliding groove and the second sliding groove, and the thread groove is disposed on the sliding One side of the shifting groove is fixed to the thread groove of the casing through the bearing end cover and the threaded connecting member after the output shaft is moved by a certain distance in the output shaft sliding groove Thereby achieving a stable fixed position after the output shaft wheelbase adjustment.

As a further improvement of the present invention, the thread grooves corresponding to the first sliding groove are two, which are disposed on both sides of the first sliding groove for fixing on both sides of the corresponding bearing end cover, and / or two thread grooves corresponding to the second sliding groove, which are respectively disposed on both sides of the second sliding groove for fixing on both sides of the corresponding bearing end cover

As a further improvement of the present invention, the double-sided belt of the transmission belt is provided with a rack, and correspondingly, the input pulley is provided with a rack in the circumferential direction, and each of the output pulleys is provided with a rack in the circumferential direction, and then The drive belt may have a rack on one side thereof matingly mesh with a rack on the input pulley, and a rack on the other side thereof matingly mesh with a rack on each of the output pulleys, thereby achieving the A drive belt transmits the driving force of the input shaft to the output shaft.

As a further improvement of the present invention, the box body includes a box cover, an intermediate box body and a lower box body which are disposed in the vertical direction, and the input shaft may be disposed between the box cover and the intermediate box, each of The output shaft may be disposed between the intermediate box and the lower box, that is, the first sliding groove and the second sliding groove are respectively opened in the intermediate box and the lower box Between the bodies.

As a further improvement of the present invention, the output shafts are two arranged in parallel, that is, a first output shaft and a second output shaft.

In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:

(1) The multi-axle device with adjustable wheelbase of the present invention, which is provided with an input shaft and a plurality of output shafts vertically spaced in a multi-axle box body, and corresponding to the axial direction of the output shaft on the multi-axis box body The output shaft sliding groove is opened, so that the output shaft can slide back and forth in the sliding groove, thereby realizing the rapid adjustment of the wheelbase between the output shafts, expanding the working range of the multi-axle box and improving the processing efficiency of the multi-axle box. , thereby reducing the processing cost of components and the cost of using multi-axle boxes;

(2) The multi-axle box device with adjustable wheelbase of the present invention realizes matching transmission between the output shaft and the input shaft by providing a transmission belt and a moving support assembly in the multi-axis box body, thereby effectively improving the multi-axle box. The installation or disassembly efficiency reduces the cost of equipment and maintenance, realizes the stable transmission of the driving force between the input shaft and the output shaft, ensures the normal operation of the multi-axle box, and improves the processing efficiency and machining accuracy;

(3) The multi-axle device with adjustable wheelbase of the present invention has a threaded groove corresponding to the multi-axle box body, which is used for the stable connection of the bearing end cover, and realizes the multi-axis after the output shaft slips. The stable connection on the box reduces the vibration and offset of the output shaft during the rotation of the output shaft, ensuring the accuracy of the output shaft output processing, reducing the defective rate of the processed product, thereby indirectly reducing the processing cost of the component and improving The economics of the use of multi-axle boxes;

(4) The wheelbase adjustable multi-axle device of the present invention further improves the accuracy of the transmission belt transmission and reduces the drive by providing racks that can be matched with each other on the transmission belt and the output pulley and the input pulley. The loss of force ensures the accuracy of the output shaft drive;

(5) The multi-axle box device with adjustable wheelbase of the invention has simple structure, convenient assembly and disassembly, low maintenance cost, can effectively realize the adjustment of the output shaft wheelbase and the fixed connection of the output shaft, and reduce the multi-axis box. The application cost has improved the machining accuracy of the multi-axle box and greatly promoted the application of the multi-axle box.

DRAWINGS

1 is a schematic view showing the internal structure of a multi-axle box device with adjustable wheelbase in an embodiment of the present invention;

2 is a perspective structural view of a multi-axle box device with adjustable wheelbase in an embodiment of the present invention;

3 is a top plan view showing a three-dimensional structure of a multi-axle box device with adjustable wheelbase in an embodiment of the present invention;

In all the drawings, the same reference numerals indicate the same technical features, specifically: 1. box, 101. box cover, 102. intermediate box, 103. lower box; 2. input shaft, 201. input Pulley; 3. Output shaft, 301. First output shaft, 302. Second output shaft, 303. Output pulley, 304. Output shaft slip groove; 4. Drive belt; 5. Mobile support assembly, 501. , 502. support rod, 503. sliding platform, 504. guide rail; 6. bearing end cover, 7. bearing, 8. thread groove.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Further, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

FIG. 1 is a schematic structural view of a multi-axle box device with adjustable wheelbase in the preferred embodiment of the present invention, wherein FIG. 1 is a schematic view showing the internal structure of a multi-axle box device with adjustable wheelbase according to an embodiment of the present invention. 2 is a perspective structural view of a multi-axle box device with adjustable wheelbase in the embodiment of the present invention; and FIG. 3 is a perspective view showing a three-dimensional structure of the multi-axle box device with adjustable wheelbase in the embodiment of the present invention.

Further, the overall structure of the multi-axle box device in the preferred embodiment of the present invention is as shown in FIGS. 2 and 3, and includes a box body 1 and an input shaft 2 and a plurality of output shafts 3 spaced apart in the box body 1. And corresponding to the input shaft 2 and the output shaft 3, the transmission belt 4 for transmitting the driving force of the input shaft 2 to the output shaft 3 is provided, and preferably the position of the output shaft 3 and the transmission belt 4 are provided with two auxiliary rollers 501, which are preferably Provided on both sides of the output shaft 3, as shown in FIG. 1, the transmission belt 4 can be sequentially sleeved on the input shaft 2 and the two auxiliary rollers 501, and is tensioned to form a triangular structure, and the transmission belt between the two auxiliary rollers 501 4 is matched with the output shaft 3 to realize the matching work of the transmission belt 4 with the input shaft 2 and the output shaft 3, so that the transmission belt 4 can drive the output shaft 3 to operate under the driving of the input shaft 2.

Further, the axes of the output shafts 3 in the preferred embodiment are on the same plane, and the axis of the input shaft 2 is spaced apart from the plane in which the axes of the output shafts 3 are located, so that the belt 4 can be coupled to the input shaft 2 The opposite section is matched to the output shaft 3; further, the output shaft 3 in the preferred embodiment is a plurality of spaced apart disposed in the casing 1, and in the preferred embodiment is arranged at the same level and spaced side by side. The number of the output shafts 3 is not limited to two, and may be other numbers, such as three, four, five, or more, depending on actual needs.

Further, the case 1 in the preferred embodiment may be integrally formed or multi-stage assembled. For example, the case 1 in the preferred embodiment is a three-stage assembly, which includes a cover 101, an intermediate case 102 and a lower case. The box body 103; further specifically, each of the three-stage box structure is generally an inner hollow cubic frame structure, and the assembled box body 1 also has a cubic structure; preferably, the connection of each box structure A supporting plate structure is disposed at the edge, and a through hole structure for matching and connecting the screw connecting member is formed correspondingly, so as to achieve matching connection between the lower case 103 and the bottom surface or the base and matching with the lower portion of the intermediate case 102 above it Connection, correspondingly, the upper portion of the intermediate casing 102 is preferably mated with the lower portion of the tank cover 101 by a screw joint, and the upper portion of the tank cover 101 is a closed structure, so that the tank cover 101, the intermediate tank 102 and the lower tank 103 are provided. After the matching is installed, a closed internal cavity is formed for the transmission of the drive.

Further, the input shaft 2 and the output shaft 3 in the preferred embodiment are arranged at a vertical interval, the output shaft 3 is above or the input shaft 2 is above, and the input shaft 2 is located at one side, and the output shaft 3 is relatively vertically spaced. The setting is on the other side, which may be set according to actual needs; further, the output shaft 3 in the preferred embodiment is located below the input shaft 2, and the driving force is transmitted from the input shaft 2 to the belt 4, and is driven by the belt 4 It is transmitted to the output shaft 3, and then the driving force is outputted by the output shaft 3 to complete the processing of the external components.

Further preferably, the input shaft 2 in the preferred embodiment is disposed between the box cover 101 and the intermediate case 102, and the output shaft 3 is disposed between the lower case 103 and the intermediate case 102, preferably at the output shaft 3 and the input shaft The portion of the second portion is provided with a circular arc-shaped recess in the box structure for the installation of the above-mentioned shaft structure, that is, the lower portion of the box cover 101 corresponds to the axial direction of the input shaft 2, and the upper portion of the intermediate box 102. An arc-shaped mounting groove is formed in the axial direction corresponding to the input shaft 2 and in the lower portion thereof corresponding to the output shaft 3, and in the upper portion of the lower casing 103 corresponding to the output shaft 3; further preferably, each axis and A bearing 7 is disposed between the cabinet structures, and a bearing end cover 6 is disposed with respect to the bearing 7, so that the output shaft 3 and the input shaft 2 are stably mounted on the casing 1 and the transmission of the driving force is completed.

Further, the bottom of the intermediate box 102 and the top of the lower box 103 respectively have horizontal slots corresponding to the output shaft 3, and the horizontal slots of the two box structures are combined to form the output shaft of the output shaft 3 after the two cabinet structures are matched and connected. The sliding groove 304, the output shaft 3 can reciprocate in the sliding groove 304, thereby changing the wheelbase between the output shaft 3 and the input shaft 2 and between the plurality of output shafts 3, thereby realizing the adjustment of the wheelbase; further preferably Preferably, the horizontal sliding grooves in the preferred embodiment are arc-shaped at both ends, and the horizontal grooves are designed in the middle, as shown in FIG.

Further, after the input shaft 2 and the output shaft 3 are fixed to the casing 1 with the bearing 7 and the bearing end cover 6, the external power is transmitted from the input shaft 2 to the output shaft 3; further, the corresponding transmission belt 4 is on the input shaft 2. An input pulley 201 is disposed, which is coaxially disposed on the input shaft 2 and rotatable about its axis with the rotation of the input shaft 2; further preferably, a circular groove of a certain depth is opened on the circumference of the input pulley 201 It is used for matching the transmission belt 4 and driving the transmission belt 4 for transmission.

Further, as shown in FIG. 1, the output shaft 3 in the preferred embodiment includes a first output shaft 301 and a second output shaft 302. The two output shafts are spaced apart in the output shaft slip groove 304 and are respectively slidable Reciprocating movement in the movement groove 304, and then moving into position, the bearing end cover 6 fixes both ends of the output shaft 3 to the casing 1, thereby realizing the adjustment of the wheelbase between the two shafts of the output shaft 3; further, in the An output pulley 303 is coaxially disposed on an outer circumference of an output shaft 301 and a second output shaft 302 corresponding to the input pulley 201 on the input shaft 2, and an annular recess of a certain depth is opened in the circumferential direction of the output pulley 303. The slot is matched to the corresponding transmission belt 4 to be embedded therein, and drives the output pulley 303 to rotate.

Further, the corresponding output pulley 303 and the transmission belt 4 are provided with a moving support assembly 5, which is preferably disposed at the bottom of the lower casing 103, as shown in FIG. 1, including the auxiliary roller 501, the support rod 502, the sliding platform 503, and the guide rail 504. The guide rail 504 is elongated, horizontally disposed at the bottom of the lower casing 103, and the plane in which the axial direction is located is preferably in the same plane as the transmission belt 4, that is, the axis thereof is preferably perpendicular to the axis of the output shaft 3; further, the sliding platform 503 is The two groups are disposed on the two sides of the guide rail 504 and can slide back and forth on the guide rail 504. The support platform 502 is vertically disposed on the sliding platform 503, and the support rods 502 disposed on each set of the sliding platform 503 are arranged side by side. Two, and an auxiliary roller 501 is disposed between the two support rods 502. The auxiliary roller 501 is relatively rotatable about its mounting shaft, which may be further preferably mounted on the top of the support rod 502; further, the horizontal height of the auxiliary roller 501 is preferably Not higher than the bottom of the input pulley 201.

Further, the drive belt 4 in the preferred embodiment respectively bypasses the auxiliary roller 501 on the two sets of sliding platforms 503 and is embedded in the annular groove on the input pulley 201 with the top sleeve, and then the two sliding platforms 503 are mutually on the guide rail 504. Sliding away from the belt until the belt 4 is tightened tightly, the sliding platform 503 is locked so as not to slide on the guide rail 504; at this time, the belt 4 is straightened to form a triangular-like structure, the top of which is embedded in the annular groove of the input pulley 201 The two sides are respectively sleeved on the two auxiliary rollers 501, and the transmission belt 4 between the two auxiliary rollers is just embedded in the annular groove of the output pulley 3 on the output shaft 3 and the output pulley 303 is pressed downward; When the transmission belt 4 moves, it drives the auxiliary rollers 501 on both sides to rotate, and can drive the output pulley 303 under the transmission belt 4 to rotate, thereby realizing the transmission of the driving force.

Further, the drive belt 4 in the preferred embodiment is a double-sided toothed timing belt, that is, a uniform rack is disposed on both sides thereof, and correspondingly, the bottom of the annular groove on the input pulley 201 is provided with a belt. The rack on the 4 matches the meshed rack, and then the belt 4 and the input pulley 201 are matched with each other by a rack; correspondingly, the bottom of the annular groove of the output pulley 303 is also provided with the belt 4 The rack-matching annular rack is such that the belt 4 can be inserted into the annular groove pressed on the output pulley 303 to be mated with the rack, and the output shaft 3 can be rotated by the rack drive. Complete the driving process of the driving force.

Further, the output shaft 3 can reciprocate in the output shaft sliding groove 304 to adjust the wheelbase between the output shafts 3, that is, the first output shaft 301 and the second output shaft 302 can reciprocate in the sliding groove 304; Further preferably, the bearing end cover 6 is respectively provided with an elongated thread groove 8 corresponding to the upper and lower sides of the output shaft sliding groove 304, and the thread groove 8 is respectively opened in the intermediate case 102 and the lower case 103. On the wall surface, the bearing end cover 6 is matched and mounted on the casing 1 by screws, and then the stable connection of the output shaft 3 after sliding in the output shaft sliding groove 304 is completed, thereby realizing the adjustment of the wheelbase between the output shafts 3 and It is fully guaranteed that the position of the output shaft 3 does not fluctuate after the wheelbase adjustment, ensuring the accuracy of machining.

The multi-axis box device in the preferred embodiment of the present invention is assembled as shown in FIG. 2 and FIG. 3, wherein the input shaft 2 is matched with the external driving motor and can be driven to rotate under the external driving force, and then the input shaft 2 is driven. The upper input pulley 201 rotates to drive the belt 4 to start moving, and the belt 4 is matched with the output shaft 3 below the input shaft 2, and then the belt 4 drives the output belts on the first output shaft 301 and the second output shaft 302. The wheel 303 is rotated to realize the rotation of the output shaft 3, the transfer process of the driving force from the input shaft 2 to the output shaft 3 is completed, and the first output shaft 301 and the second output shaft 302 can reciprocate in the output shaft slip groove 304. Slip, realize the change of the wheelbase and fix it in the thread groove 8 with screws, avoiding the fluctuation and offset of the output shaft 3 during the working process, and ensuring the progress of the machining.

The multi-axle box device in the preferred embodiment of the present invention effectively sets up the quick installation and disassembly of the transmission belt 4 by setting the transmission belt 4 and the moving support assembly 5 to match, thereby ensuring the working stability of the transmission belt 4, through both sides of the box body. Corresponding to the output shaft slip groove 304, the output shaft can be close to each other or the principle, the wheelbase can be quickly adjusted, the efficiency of the wheelbase adjustment and the applicability of the multi-axle box are improved, and then the thread groove 8 is provided to match the output. The fast fixing of the shaft 3 ensures the machining accuracy and machining efficiency during the machining process.

Those skilled in the art will appreciate that the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention, All should be included in the scope of protection of the present invention.

Claims

A multi-axle box device with adjustable wheelbase includes a box body (1) and an input shaft (2) and a plurality of output shafts (3) disposed in the box body (1) and capable of matching transmission of the belt (4) Each of the output shaft (3) and the input shaft (2) is provided with an output pulley (303) and an input pulley (201) respectively mateable with the transmission belt (4), wherein

An auxiliary roller (501) is disposed in the casing (1) corresponding to the transmission belt (4), which is divided into two sides disposed on two sides of the axis of the output shaft (3) and can be sleeved on the input The drive belt (4) on the pulley (201) is tensioned to have a triangular configuration, and the side of the triangular structure opposite the input shaft (2) is just matched to the compression of each of the output shafts ( 3) an upper output pulley (303), whereby the transmission belt (4) and each of the output shafts (3) are sequentially driven by the rotation of the input shaft (2);

An output shaft sliding groove (304) penetrating through the side wall of the casing (1) corresponding to the plurality of output shafts (3) on the casing (1), which is disposed opposite to the casing (1) a first sliding groove and a second sliding groove on the opposite side wall surfaces, wherein each of the output shafts (3) sequentially passes through the first sliding groove and the second sliding groove at one end thereof Arranged in parallel in the output shaft slip groove (304), the axes of the respective output shafts (3) are on the same plane and the output shafts (3) can be along the output shaft on the axis plane The lengthwise direction of the slip groove (304) reciprocates to achieve adjustment of the wheelbase between the respective output shafts (3).
A wheelbase adjustable multi-axle assembly according to claim 1, wherein said input shaft (2) and each of said output shafts (3) are vertically spaced, said input shaft (2) being positionable Above or below each of the output shafts (3).
The wheelbase adjustable multi-axle device according to claim 1 or 2, wherein the axis of each of the output shafts (3) is on the same horizontal plane, that is, the slot of the output shaft slip groove (304) The direction is a horizontal direction such that each of the output shafts (3) is reciprocally movable in a horizontal direction to change the wheelbase between the respective output shafts (3).
The wheelbase adjustable multi-axle device according to any one of claims 1 to 3, wherein a corresponding moving belt (4) is further provided with a moving support assembly (5), which is provided in the casing (1) a bottom rail (504), two sliding platforms (503) disposed at two ends of the rail (504) and reciprocally movable and fixed on the rails (504), and vertically disposed respectively The sliding platform (503) is respectively configured to support a support rod (502) of the auxiliary roller (501), and the sliding platform (503) can drive the support rod (502) corresponding thereto and the An auxiliary roller (501) on the support rod (502) slides along the axial direction of the guide rail (504) to achieve tensioning of the transmission belt (4) and allows the transmission belt (4) to be coupled to each of the output shafts Each of the output pulleys (303) on (3) is matched and pressed.
The wheelbase adjustable multi-axle device according to any one of claims 1 to 4, wherein the input shaft (2) and the output shaft (3) are interposed between the casing (1) Bearings (7) are respectively provided, and bearing end covers (6) are provided at the ends of the bearings (7) for passing the input shafts (2) and the bearings through the bearing end covers (6) The output shaft (3) is fixed to the casing (1).
The multi-axle device with adjustable wheelbase according to claim 5, wherein an outer wall surface of the casing (1) corresponds to a longitudinal direction of the first sliding groove and the second sliding groove Threaded grooves (8) are respectively formed, and the thread grooves (8) are disposed at one side of the sliding groove for the output shaft (3) to move in the output shaft sliding groove (304) The distance can be fixed to the thread groove (8) on the casing (1) through the bearing end cover (6) and the threaded connection member, thereby realizing the adjustment of the output shaft (3) after the wheelbase is adjusted. Stable fixed position.
The multi-axle device with adjustable wheelbase according to claim 6, wherein the thread grooves (8) corresponding to the first sliding groove are two, which are respectively disposed on the first sliding groove Two sides are fixed for the two sides of the corresponding bearing end cover (6), and/or two thread grooves (8) corresponding to the second sliding groove are disposed in the second sliding groove Both sides are used for fixing the sides of the corresponding bearing end cover (6).
The wheelbase adjustable multi-axle box device according to any one of claims 1 to 7, wherein a double-sided belt of the transmission belt (4) is provided with a rack, and correspondingly, the input pulley (201) A rack is provided in the circumferential direction, and each of the output pulleys (303) is provided with a rack in the circumferential direction, and then the belt (4) can be on the rack on one side and the input pulley (201) The racks are mated and matched with the racks on the other of the output pulleys (303) by the racks on the other side thereof, thereby enabling the drive belt (4) to drive the input shaft (2) The force is transmitted to the output shaft (3).
The wheelbase adjustable multi-axle device according to any one of claims 1 to 8, wherein the casing (1) comprises a tank cover (101) and an intermediate casing (102) which are disposed in this order in the vertical direction. And a lower case (103), the input shaft (2) may be disposed between the cover (101) and the intermediate case (102), and each of the output shafts (3) may be disposed at Between the intermediate case (102) and the lower case (103), that is, the first sliding groove and the second sliding groove are respectively opened in the intermediate case (102) and the lower Between the boxes (103).
The wheelbase adjustable multi-axle device according to any one of claims 1 to 9, wherein the output shaft (3) is two arranged in parallel, that is, the first output shaft (301) and the Two output shafts (302).