Walking mechanism of four-wheel drive heading machine and four-wheel drive heading machine

Abstract

The invention provides a walking mechanism of a four-wheel drive heading machine and the four-wheel drive heading machine. The walking mechanism comprises four drive assemblies. Each driving assemblycomprises a driving device, tensioning devices and a buffering device. The driving device comprises a driving wheel and a tensioning bracket, and a crawler belt of the heading machine is wound on thedriving wheel; the tensioning devices are connected with the tensioning bracket, and the tensioning bracket can be driven by the tensioning devices to move in the front-back direction so as to adjustthe tensioning degree of the crawler belt. The walking mechanism is powered by the four driving devices, and compared with two-wheel driving, the walking mechanism has larger advancing power, so thatthe climbing capacity of the heading machine with the walking mechanism is enhanced, and the heading machine with the walking mechanism can work on a larger slope. And the tensioning devices are arranged in the front side direction and the rear side direction of the crawler belt, the situation of uneven tensioning force of the crawler belt can be improved, and the stability and reliability of thewalking mechanism are improved. And meanwhile, by arranging the buffering device, the impact can be effectively reduced, and the service life of the driving wheel and the tensioning device is prolonged.

Description

technical field

[0001] The present invention relates to the technical field of excavation machinery, in particular to a traveling mechanism of a four-wheel drive excavating machine and a four-wheel driving excavating machine comprising the above traveling mechanism. Background technique

[0002] At present, the existing roadheaders generally adopt a crawler-type traveling mechanism driven by two wheels, which is driven by the rear wheel, and the tightness of the crawler is adjusted through the tensioning oil cylinder on the front wheel side, which only plays a role in tensioning the crawler. Tight and guiding. However, during the tunneling process of the roadheader, especially in the case of a relatively large slope, the driving power is obviously insufficient, so that the roadheader cannot be used in a working environment with a large slope. Contents of the invention

[0003] In order to improve at least one of the above technical problems, an object of the present inven...

Examples

Embodiment 1

[0040] The running gear 1 includes a driving device 10 and a tensioning device 20 . figure 1 As shown, the traveling mechanism 1 arranged on one side of the four-wheel drive roadheader includes two sets of driving devices 10 and two sets of tensioning devices 20 . The driving device 10 is connected to the tensioning device 20 in one-to-one correspondence. The driving device 10 includes a driving wheel 101 and a tightening bracket 107 connected with the driving wheel 101, and the crawler belt of the boring machine is wound on the driving wheel 101; the tensioning device 20 is connected with the tightening bracket 107, and the tightening bracket 107 Driven by the tensioning device 20, it can move forward and backward to adjust the tension of the crawler belt of the roadheader.

[0041] The running gear 1 provided in this embodiment adopts a four-wheel drive mode, specifically including four driving wheels 101 , four tensioning brackets 107 and four tensioning devices 20 . In t...

Embodiment 2

[0048] On the basis of embodiment one, further, as figure 1 As shown, a buffer device 30 is provided between the tensioning bracket 107 and the tensioning device 20 , and the buffering device 30 is used to relieve the impact on the tensioning device 20 and the driving wheel 101 .

[0049] The buffer device 30 changes the connection between the tensioning bracket 107 and the tensioning device 20 from a rigid connection to a flexible connection, so as to relieve the tensioning device 20, the tensioning bracket 107, and the connection between the tensioning bracket 107 and the tensioning bracket 107. The driving wheel 101 is impacted, and by reasonably controlling the tension of the crawler belt, the wear of the crawler belt is reduced, thereby improving the service life and efficiency of the running mechanism 1 .

[0050] Optionally, the buffer device 30 includes an elastic element, and the tensioning device 20 includes a tensioning oil cylinder. Wherein the tension bracket 107...

Embodiment 3

[0053] On the basis of any of the above embodiments, further, as figure 1 As shown, the traveling mechanism 1 further includes a crawler frame 40 , and the tensioning device 20 and the buffer device 30 are arranged in the crawler frame 40 .

[0054] The crawler frame 40 can protect the tensioning device 20 and the buffer device 30 . For the situation where the buffer device 30 is provided, the crawler frame 40 can also play a certain position-limiting effect. By reasonably setting the position of the buffer device 30, the possibility of misalignment of the buffer device 30 after receiving the impact is reduced, so as to improve the position of the buffer device 30. use reliability.

[0055] Further, the crawler frame 40 is hinged with a side pull cylinder 401, which is used to connect traction equipment to assist the traveling mechanism 1 to perform uphill work.

[0056] The traveling mechanism 1 provided in this embodiment is provided with a side pulling cylinder 401, which...

technical field

[0001] The present invention relates to the technical field of excavation machinery, in particular to a traveling mechanism of a four-wheel drive excavating machine and a four-wheel driving excavating machine comprising the above traveling mechanism. Background technique

[0002] At present, the existing roadheaders generally adopt a crawler-type traveling mechanism driven by two wheels, which is driven by the rear wheel, and the tightness of the crawler is adjusted through the tensioning oil cylinder on the front wheel side, which only plays a role in tensioning the crawler. Tight and guiding. However, during the tunneling process of the roadheader, especially in the case of a relatively large slope, the driving power is obviously insufficient, so that the roadheader cannot be used in a working environment with a large slope. Contents of the invention

[0003] In order to improve at least one of the above technical problems, an object of the present inven...

Examples

Embodiment 1

[0040] The running gear 1 includes a driving device 10 and a tensioning device 20 . figure 1 As shown, the traveling mechanism 1 arranged on one side of the four-wheel drive roadheader includes two sets of driving devices 10 and two sets of tensioning devices 20 . The driving device 10 is connected to the tensioning device 20 in one-to-one correspondence. The driving device 10 includes a driving wheel 101 and a tightening bracket 107 connected with the driving wheel 101, and the crawler belt of the boring machine is wound on the driving wheel 101; the tensioning device 20 is connected with the tightening bracket 107, and the tightening bracket 107 Driven by the tensioning device 20, it can move forward and backward to adjust the tension of the crawler belt of the roadheader.

[0041] The running gear 1 provided in this embodiment adopts a four-wheel drive mode, specifically including four driving wheels 101 , four tensioning brackets 107 and four tensioning devices 20 . In t...

Embodiment 2

[0048] On the basis of embodiment one, further, as figure 1 As shown, a buffer device 30 is provided between the tensioning bracket 107 and the tensioning device 20 , and the buffering device 30 is used to relieve the impact on the tensioning device 20 and the driving wheel 101 .

[0049] The buffer device 30 changes the connection between the tensioning bracket 107 and the tensioning device 20 from a rigid connection to a flexible connection, so as to relieve the tensioning device 20, the tensioning bracket 107, and the connection between the tensioning bracket 107 and the tensioning bracket 107. The driving wheel 101 is impacted, and by reasonably controlling the tension of the crawler belt, the wear of the crawler belt is reduced, thereby improving the service life and efficiency of the running mechanism 1 .

[0050] Optionally, the buffer device 30 includes an elastic element, and the tensioning device 20 includes a tensioning oil cylinder. Wherein the tension bracket 107...

Embodiment 3

[0053] On the basis of any of the above embodiments, further, as figure 1 As shown, the traveling mechanism 1 further includes a crawler frame 40 , and the tensioning device 20 and the buffer device 30 are arranged in the crawler frame 40 .

[0054] The crawler frame 40 can protect the tensioning device 20 and the buffer device 30 . For the situation where the buffer device 30 is provided, the crawler frame 40 can also play a certain position-limiting effect. By reasonably setting the position of the buffer device 30, the possibility of misalignment of the buffer device 30 after receiving the impact is reduced, so as to improve the position of the buffer device 30. use reliability.

[0055] Further, the crawler frame 40 is hinged with a side pull cylinder 401, which is used to connect traction equipment to assist the traveling mechanism 1 to perform uphill work.

[0056] The traveling mechanism 1 provided in this embodiment is provided with a side pulling cylinder 401, which...

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